{"id":3087,"date":"2025-02-28T07:31:10","date_gmt":"2025-02-28T07:31:10","guid":{"rendered":"https:\/\/gbelentzas.sites.sch.gr\/?p=3087"},"modified":"2025-03-02T06:21:03","modified_gmt":"2025-03-02T06:21:03","slug":"h-%ce%ad%ce%bd%ce%bd%ce%bf%ce%b9%ce%b1-%cf%84%ce%b7%cf%82-%cf%83%cf%85%ce%bd%ce%ac%cf%81%cf%84%ce%b7%cf%83%ce%b7%cf%82","status":"publish","type":"post","link":"https:\/\/gbelentzas.sites.sch.gr\/?p=3087","title":{"rendered":"H \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2"},"content":{"rendered":"\n\n<div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-b9f99eea-096b-47e4-811e-c966fdcd2685\" data-mobilecollapse=\"false\" data-desktopcollapse=\"false\" data-preventcollapse=\"false\" data-showonlyone=\"false\">\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #0b6623; \" id=\"ub-content-toggle-panel-block-\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #0b6623;\" aria-controls=\"ub-content-toggle-panel-0-b9f99eea-096b-47e4-811e-c966fdcd2685\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-b9f99eea-096b-47e4-811e-c966fdcd2685\" style=\"color: #ffffff; \"><strong><i class=\"fas fa-wifi\"><\/i>\u00a0 \u03a0\u03b1\u03c1\u03ac\u03b4\u03b5\u03b9\u03b3\u03bc\u03b1<\/strong><\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down open\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"true\" class=\"wp-block-ub-content-toggle-accordion-content-wrap\" id=\"ub-content-toggle-panel-0-b9f99eea-096b-47e4-811e-c966fdcd2685\">\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday.jpg\" alt=\"\" class=\"wp-image-3088\" style=\"width:285px;height:auto\" srcset=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday.jpg 1024w, https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday-300x300.jpg 300w, https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday-150x150.jpg 150w, https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday-768x768.jpg 768w, https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/ai_blackfriday-850x850.jpg 850w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">\u0388\u03bd\u03b1 \u03ba\u03b1\u03c4\u03ac\u03c3\u03c4\u03b7\u03bc\u03b1 \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 20% \u03c3\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03bf\u03c5 \u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1 \u03bb\u03cc\u03b3\u03c9 \u03c4\u03bf\u03c5 \u03b8\u03b5\u03c3\u03bc\u03bf\u03cd Black Friday.\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391. <em>\u0391\u03bd \u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03ad\u03c7\u03b5\u03b9 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae 45 \u03b5\u03c5\u03c1\u03ce, \u03c0\u03bf\u03b9\u03b1 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7;<\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0392. \u0391\u03bd \u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03ad\u03c7\u03b5\u03b9 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae x, \u03c0\u03bf\u03b9\u03b1 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae y \u03c4\u03bf\u03c5 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2;\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0393. \u0391\u03bd \u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03ad\u03c7\u03b5\u03b9 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae 120 \u03b5\u03c5\u03c1\u03ce, \u03c0\u03bf\u03b9\u03b1 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9 \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7;\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0394. \u039d\u03b1 \u03c3\u03c5\u03bc\u03c0\u03bb\u03b7\u03c1\u03ce\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03ba\u03ac\u03c4\u03c9 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\" style=\"font-size:15px\"><table class=\"has-cyan-bluish-gray-background-color has-background has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>x <\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">45<\/td><td class=\"has-text-align-center\" data-align=\"center\">120<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td class=\"has-text-align-center\" data-align=\"center\">90<\/td><td>150<\/td><td class=\"has-text-align-center\" data-align=\"center\">430<\/td><td class=\"has-text-align-center\" data-align=\"center\">500<\/td><td class=\"has-text-align-center\" data-align=\"center\">1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>y<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n<div class=\"wp-block-ub-divider ub_divider ub-divider-orientation-horizontal\" id=\"ub_divider_7c2dcddf-0ea2-49d3-a05d-cb607fb6c956\"><div class=\"ub_divider_wrapper\" style=\"position: relative; margin-bottom: 2px; width: 100%; height: 2px; \" data-divider-alignment=\"center\"><div class=\"ub_divider_line\" style=\"border-top: 2px solid #ccc; margin-top: 2px; \"><\/div><\/div><\/div>\n\n\n<p class=\"wp-block-paragraph\">\u039f \u03c4\u03cd\u03c0\u03bf\u03c2 \u03c0\u03bf\u03c5 \u03c3\u03c5\u03bd\u03b4\u03ad\u03b5\u03b9 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2 \u03bc\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 \u03b5\u03af\u03bd\u03b1\u03b9:\u00a0<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/uploads\/2025\/02\/%CE%A4%CE%B5%CE%BB%CE%B9%CE%BA%CE%AE-%CF%84%CE%B9%CE%BC%CE%AE-%CF%80%CE%BF%CF%83%CE%BF%CF%83%CF%84%CE%BF-1024x126.png\" alt=\"\" class=\"wp-image-3089\" style=\"width:485px;height:auto\"><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0391) <\/strong><em>\u0393\u03b9\u03b1 \u03ad\u03bd\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd \u03bc\u03b5 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae 45 \u03b5\u03c5\u03c1\u03ce. \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 \u03b8\u03b1 \u03b5\u03af\u03bd\u03b1\u03b9: <\/em><\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><strong>\u03a4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae <\/strong><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-fd69b2c4b30f47c0e4ce03878b36cd01_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"= 45 -\\dfrac{20}{100}\\cdot 45\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"124\" style=\"vertical-align: -13px;\"> <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-06f97d18b96394799c5b00840758fbef_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=45 -0,2\\cdot 45\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"119\" style=\"vertical-align: -4px;\"> <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-33da830d4297220179954ff2735b71aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=45 -9\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"70\" style=\"vertical-align: 0px;\"> <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-b0657eb9e16fc2d793aa33a6bbe014b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"=36\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"37\" style=\"vertical-align: 0px;\"> \u03b5\u03c5\u03c1\u03ce <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0392) <\/strong>\u0391\u03bd \u03c3\u03c5\u03bc\u03b2\u03bf\u03bb\u03af\u03c3\u03bf\u03c5\u03bc\u03b5 \u03c4\u03b7\u03bd \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03b5\u03bd\u03cc\u03c2 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03bf\u03c2 \u03bc\u03b5 x, \u03ba\u03b1\u03b9 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae \u03c4\u03bf\u03c5 \u03bc\u03b5 y \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-9a4079bdbf9e6fb49473c1d3bbf12ad3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y= x-\\dfrac{20}{100}\\cdot x\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"125\" style=\"vertical-align: -13px;\"> <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-e4a75039500de4e27c092ac154e2c310_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y= x-0.2\\cdot x\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"116\" style=\"vertical-align: -4px;\"> <\/p>\n\n\n\n<p class=\"has-text-align-center wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-c4f1aa6460c55927f9e001fda8bc1469_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y= 0.8x\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"68\" style=\"vertical-align: -4px;\"> <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u039c\u03b5 \u03c4\u03b7 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae\u00a0<strong>\u03ba\u03ac\u03b8\u03b5 \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2 x\u00a0<\/strong>\u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03af\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c3\u03b5\u00a0<strong>\u03bc\u03af\u03b1 \u03bc\u03cc\u03bd\u03bf \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2 y<\/strong>.\u00a0\u039c\u03b9\u03b1 \u03c4\u03ad\u03c4\u03bf\u03b9\u03b1 \u03c3\u03c7\u03ad\u03c3\u03b7 \u03c3\u03c4\u03b1 \u039c\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ac \u03bb\u03ad\u03b3\u03b5\u03c4\u03b1\u03b9\u00a0<strong>\u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7<\/strong>. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u03a3\u03c4\u03b7\u03bd \u03c0\u03b5\u03c1\u03af\u03c0\u03c4\u03c9\u03c3\u03b7 \u03b1\u03c5\u03c4\u03ae \u03bb\u03ad\u03bc\u03b5 \u03cc\u03c4\u03b9 <em>&#8220;\u03b7 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae y \u03b5\u03ba\u03c6\u03c1\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c9\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2 x&#8221;. <\/em><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">H \u03c3\u03c7\u03ad\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-f1d99e847c57902dec69de767995115f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y = 0,8x\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"72\" style=\"vertical-align: -4px;\"> \u03b5\u03af\u03bd\u03b1\u03b9 \u03bf <strong>\u03c4\u03cd\u03c0\u03bf\u03c2<\/strong> \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0393) <\/strong>H \u03c3\u03c7\u03ad\u03c3\u03b7 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-f1d99e847c57902dec69de767995115f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y = 0,8x\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"72\" style=\"vertical-align: -4px;\"> \u03bc\u03c0\u03bf\u03c1\u03b5\u03af \u03bd\u03b1 \u03c7\u03c1\u03b7\u03c3\u03b9\u03bc\u03bf\u03c0\u03bf\u03b9\u03b7\u03b8\u03b5\u03af \u03ba\u03b1\u03b9 \u03b3\u03b9\u03b1 \u03ac\u03bb\u03bb\u03b5\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03b7\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ae\u03c2 x. \u0395\u03c0\u03bf\u03bc\u03ad\u03bd\u03c9\u03c2, \u03b1\u03bd x=120 \u03c4\u03cc\u03c4\u03b5<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-848e5fa7282875648939b4ebda98945f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y= 0.8\\cdot 120=96\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"144\" style=\"vertical-align: -4px;\"> \u03b5\u03c5\u03c1\u03ce <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u0394)<\/strong> \u0397 \u03b1\u03bd\u03c4\u03b9\u03c3\u03c4\u03bf\u03b9\u03c7\u03af\u03b1 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03c4\u03c9\u03bd \u03c4\u03b9\u03bc\u03ce\u03bd \u03c4\u03c9\u03bd \u03bc\u03b5\u03c4\u03b1\u03b2\u03bb\u03b7\u03c4\u03ce\u03bd x \u03ba\u03b1\u03b9 y \u03c6\u03b1\u03af\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03bb\u03cd\u03c4\u03b5\u03c1\u03b1 \u03bc\u03b5 \u03c4\u03b7 \u03b2\u03bf\u03ae\u03b8\u03b5\u03b9\u03b1 \u03b5\u03bd\u03cc\u03c2 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03bc\u03b5 \u03c4\u03b1 \u03c4\u03b1 \u03b6\u03b5\u03cd\u03b3\u03b7 \u03c4\u03c9\u03bd \u03c4\u03b9\u03bc\u03ce\u03bd x \u03ba\u03b1\u03b9 y, \u03c0\u03bf\u03c5 \u03bf\u03bd\u03bf\u03bc\u03ac\u03b6\u03b5\u03c4\u03b1\u03b9 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1\u03c2 \u03c4\u03b9\u03bc\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0388\u03c4\u03c3\u03b9, \u03b3\u03b9\u03b1 \u03c4\u03b7 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 y = 0,8x \u03ad\u03c7\u03bf\u03c5\u03bc\u03b5:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0393\u03b9\u03b1 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-90c0a30d062152702a1a869826d5793b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=90\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"54\" style=\"vertical-align: 0px;\">, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-6b891a078d6d4ab4bcdac387af54c771_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=0.8\\cdot 90=72\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"134\" style=\"vertical-align: -4px;\"><\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-f99a5328bfc7f3ca7a56fa8a51ad0326_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=20\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"54\" style=\"vertical-align: 0px;\">, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-b5f17ee9e3b0956452cd738d8f43e0c7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=0.8\\cdot 20=16\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"134\" style=\"vertical-align: -4px;\"><\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-9c1bb646ac277e6a4e67d78193b1a0ac_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=430\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"63\" style=\"vertical-align: 0px;\">, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-96f90f58f84246d74c631501b7f65e9e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=0.8\\cdot 430=344\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"153\" style=\"vertical-align: -4px;\"><\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-8857a0e85936d06f4950b780100a481d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=500\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"63\" style=\"vertical-align: 0px;\">, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-38c1a8d85b46a1b44cae42ab34b61c1f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=0.8\\cdot 500=400\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"153\" style=\"vertical-align: -4px;\"><\/li>\n\n\n\n<li>\u0393\u03b9\u03b1 <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-3686a4febfaf97bee5930cd9b1d888e3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=1000\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"72\" style=\"vertical-align: 0px;\">, <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/gbelentzas.sites.sch.gr\/wp-content\/ql-cache\/quicklatex.com-c254ad4aaee8289afabba96ad4316542_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"y=0.8\\cdot 1000=800\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"162\" style=\"vertical-align: -4px;\"><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\" style=\"font-size:15px\"><table class=\"has-cyan-bluish-gray-background-color has-background has-fixed-layout\"><tbody><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>x <\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\">45<\/td><td>120<\/td><td class=\"has-text-align-center\" data-align=\"center\">200<\/td><td>90<\/td><td>20<\/td><td>430<\/td><td>500<\/td><td>1000<\/td><\/tr><tr><td class=\"has-text-align-center\" data-align=\"center\"><strong>y<\/strong><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td><\/td><td class=\"has-text-align-center\" data-align=\"center\"><\/td><td><\/td><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">\u0391\u03c0\u03cc \u03c4\u03bf\u03bd \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 <strong>\u03ba\u03b1\u03b8\u03ce\u03c2<\/strong> \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae, \u03b1\u03c5\u03be\u03ac\u03bd\u03b5\u03c4\u03b1\u03b9 \u03ba\u03b1\u03b9 \u03b7 \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u039c\u03b5 \u03ac\u03bb\u03bb\u03b1 \u03bb\u03cc\u03b3\u03b9\u03b1, \u03c0\u03b1\u03c1\u03b1\u03c4\u03b7\u03c1\u03bf\u03cd\u03bc\u03b5 \u03cc\u03c4\u03b9 \u03c5\u03c0\u03ac\u03c1\u03c7\u03b5\u03b9\u00a0<strong>\u03c3\u03c5\u03bc\u03bc\u03b5\u03c4\u03b1\u03b2\u03bf\u03bb\u03ae<\/strong>, \u03b4\u03b7\u03bb\u03b1\u03b4\u03ae \u03bc\u03b9\u03b1 \u03bc\u03b1\u03b8\u03b7\u03bc\u03b1\u03c4\u03b9\u03ba\u03ae \u03c3\u03c7\u03ad\u03c3\u03b7 \u03bc\u03b5\u03c4\u03b1\u03be\u03cd \u03b4\u03cd\u03bf \u03c0\u03bf\u03c3\u03bf\u03c4\u03ae\u03c4\u03c9\u03bd x \u03ba\u03b1\u03b9 y, \u03cc\u03c0\u03bf\u03c5 \u03b7 \u03c4\u03b9\u03bc\u03ae \u03c4\u03b7\u03c2 \u03bc\u03b9\u03b1\u03c2 \u03c0\u03bf\u03c3\u03cc\u03c4\u03b7\u03c4\u03b1\u03c2 \u03b1\u03bb\u03bb\u03ac\u03b6\u03b5\u03b9 \u03ba\u03b1\u03b8\u03ce\u03c2 \u03bc\u03b5\u03c4\u03b1\u03b2\u03ac\u03bb\u03bb\u03b5\u03c4\u03b1\u03b9 \u03b7 \u03ac\u03bb\u03bb\u03b7.\u00a0<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>\n\n<div class=\"wp-block-ub-content-toggle wp-block-ub-content-toggle-block\" id=\"ub-content-toggle-block-7efee15c-271c-4301-a1f8-cd4af37883b4\" data-mobilecollapse=\"false\" data-desktopcollapse=\"false\" data-preventcollapse=\"false\" data-showonlyone=\"false\">\n<div class=\"wp-block-ub-content-toggle-accordion\" style=\"border-color: #ff6900; \" id=\"ub-content-toggle-panel-block-\">\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-title-wrap\" style=\"background-color: #ff6900;\" aria-controls=\"ub-content-toggle-panel-0-7efee15c-271c-4301-a1f8-cd4af37883b4\" tabindex=\"0\">\n\t\t\t<p class=\"wp-block-ub-content-toggle-accordion-title ub-content-toggle-title-7efee15c-271c-4301-a1f8-cd4af37883b4\" style=\"color: #ffffff; \"><strong><em><i class=\"fas fa-flag\"><\/i> <\/em>Let&#8217;s Practise<\/strong><\/p>\n\t\t\t<div class=\"wp-block-ub-content-toggle-accordion-toggle-wrap right\" style=\"color: #000000;\"><span class=\"wp-block-ub-content-toggle-accordion-state-indicator wp-block-ub-chevron-down open\"><\/span><\/div>\n\t\t<\/div>\n\t\t\t<div role=\"region\" aria-expanded=\"true\" class=\"wp-block-ub-content-toggle-accordion-content-wrap\" id=\"ub-content-toggle-panel-0-7efee15c-271c-4301-a1f8-cd4af37883b4\">\n\n<p class=\"has-luminous-vivid-orange-color has-text-color has-link-color wp-elements-aa3db8c19507d5a4c5f2a4e8492a7194 wp-block-paragraph\"><strong>\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 1<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0388\u03bd\u03b1 \u03b2\u03b9\u03b2\u03bb\u03b9\u03bf\u03c0\u03c9\u03bb\u03b5\u03af\u03bf \u03c0\u03c1\u03bf\u03c3\u03c6\u03ad\u03c1\u03b5\u03b9 \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 15% \u03c3\u03b5 \u03cc\u03bb\u03b1 \u03c4\u03bf\u03c5 \u03c4\u03b1 \u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03b1.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b1) <\/strong>\u039d\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae\u00a0\u00a0y\u00a0\u00a0\u03bc\u03b5\u03c4\u03ac \u03c4\u03b7\u03bd \u03ad\u03ba\u03c0\u03c4\u03c9\u03c3\u03b7 \u03c9\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03c4\u03b7\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ae\u03c2 \u03c4\u03b9\u03bc\u03ae\u03c2\u00a0\u00a0x.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b2)<\/strong> \u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03b7\u03bd \u03c4\u03b5\u03bb\u03b9\u03ba\u03ae \u03c4\u03b9\u03bc\u03ae\u00a0\u00a0y\u00a0\u00a0\u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03b1\u03c1\u03c7\u03b9\u03ba\u03ad\u03c2 \u03c4\u03b9\u03bc\u03ad\u03c2\u00a0\u03c0\u03c1\u03bf\u03ca\u03cc\u03bd\u03c4\u03c9\u03bd\u00a0x = 20\u00a0,\u00a0\u00a0x = 75\u00a0\u00a0\u03ba\u03b1\u03b9\u00a0\u00a0x = 150.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b3)<\/strong> \u039d\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03b9\u03bc\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03bf\u03c5\u00a0\u00a0x.<\/p>\n\n\n\n<p class=\"has-luminous-vivid-orange-color has-text-color has-link-color wp-elements-20924742b437739f8ab7db3202ac6f9c wp-block-paragraph\"><strong>\u0386\u03c3\u03ba\u03b7\u03c3\u03b7 2<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u0388\u03bd\u03b1\u03c2 \u03c5\u03c0\u03ac\u03bb\u03bb\u03b7\u03bb\u03bf\u03c2 \u03bb\u03b1\u03bc\u03b2\u03ac\u03bd\u03b5\u03b9 \u03c3\u03c4\u03b1\u03b8\u03b5\u03c1\u03cc \u03bc\u03b7\u03bd\u03b9\u03b1\u03af\u03bf \u03bc\u03b9\u03c3\u03b8\u03cc 800\u202f\u20ac \u03ba\u03b1\u03b9 \u03b5\u03c0\u03b9\u03c0\u03bb\u03ad\u03bf\u03bd \u03bc\u03c0\u03cc\u03bd\u03bf\u03c5\u03c2 5% \u03b5\u03c0\u03af \u03c4\u03c9\u03bd \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b1)<\/strong> \u039d\u03b1 \u03b5\u03ba\u03c6\u03c1\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03bc\u03b7\u03bd\u03b9\u03b1\u03af\u03bf \u03bc\u03b9\u03c3\u03b8\u03cc\u00a0\u00a0y\u00a0\u00a0\u03c9\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7 \u03c4\u03bf\u03c5 \u03c0\u03bf\u03c3\u03bf\u03cd\u00a0\u00a0x\u00a0\u00a0\u03c4\u03c9\u03bd \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03c9\u03bd \u03c0\u03bf\u03c5 \u03c0\u03c1\u03b1\u03b3\u03bc\u03b1\u03c4\u03bf\u03c0\u03bf\u03b9\u03b5\u03af.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b2)<\/strong> \u039d\u03b1 \u03c5\u03c0\u03bf\u03bb\u03bf\u03b3\u03af\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf \u03c3\u03c5\u03bd\u03bf\u03bb\u03b9\u03ba\u03cc \u03c0\u03bf\u03c3\u03cc\u00a0\u00a0y\u00a0\u00a0\u03c0\u03bf\u03c5 \u03ba\u03b5\u03c1\u03b4\u03af\u03b6\u03b5\u03b9 \u03b1\u03bd \u03bf\u03b9 \u03c0\u03c9\u03bb\u03ae\u03c3\u03b5\u03b9\u03c2 \u03c4\u03bf\u03c5 \u03b5\u03af\u03bd\u03b1\u03b9\u00a0\u00a0x = 2.000\u00a0,\u00a0\u00a0x = 4.500\u00a0\u00a0\u03ba\u03b1\u03b9\u00a0\u00a0x = 8.000.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>\u03b3)<\/strong> \u039d\u03b1 \u03ba\u03b1\u03c4\u03b1\u03c3\u03ba\u03b5\u03c5\u03ac\u03c3\u03b5\u03c4\u03b5 \u03c4\u03bf\u03bd \u03c0\u03af\u03bd\u03b1\u03ba\u03b1 \u03c4\u03b9\u03bc\u03ce\u03bd \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 \u03b3\u03b9\u03b1 \u03c4\u03b9\u03c2 \u03c0\u03b1\u03c1\u03b1\u03c0\u03ac\u03bd\u03c9 \u03c4\u03b9\u03bc\u03ad\u03c2 \u03c4\u03bf\u03c5\u00a0\u00a0x.<\/p>\n\n<\/div>\n\t\t<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[44],"tags":[],"class_list":["post-3087","post","type-post","status-publish","format-standard","hentry","category-3-1----"],"featured_image_src":null,"author_info":{"display_name":"admin","author_link":"https:\/\/gbelentzas.sites.sch.gr\/?author=1"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>H \u03ad\u03bd\u03bd\u03bf\u03b9\u03b1 \u03c4\u03b7\u03c2 \u03c3\u03c5\u03bd\u03ac\u03c1\u03c4\u03b7\u03c3\u03b7\u03c2 - MathsEdu.gr<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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