{"id":122316,"date":"2017-05-24T15:57:40","date_gmt":"2017-05-24T17:57:40","guid":{"rendered":"https:\/\/lab.fabricadelandings.com.br\/portalsaofrancisconovo\/?p=122316"},"modified":"2017-08-17T15:26:15","modified_gmt":"2017-08-17T17:26:15","slug":"regra-de-tres-simples","status":"publish","type":"post","link":"https:\/\/lab.fabricadelandings.com.br\/portalsaofrancisconovo\/matematica\/regra-de-tres-simples","title":{"rendered":"Regra de Tr\u00eas Simples"},"content":{"rendered":"<h2>O que \u00e9 a Regra de Tr\u00eas Simples<\/h2>\n<p>A\u00a0<strong>Regra de Tr\u00eas<\/strong> Simples \u00e9 uma t\u00e9cnica matem\u00e1tica que estabelece uma rela\u00e7\u00e3o de proporcionalidade entre grandezas, utilizada em situa\u00e7\u00f5es quando se desconhece uma entre duas\u00a0grandezas. Essa t\u00e9cnica tamb\u00e9m \u00e9 utilizada no c\u00e1lculo de porcentagem.<\/p>\n<p><strong>A regra de tr\u00eas possui duas classifica\u00e7\u00f5es:<\/strong> direta ou\u00a0inversa.<\/p>\n<p><strong>Regra de tr\u00eas direta:<\/strong> \u00e9 quando duas grandezas variam de forma proporcional, ou seja, se uma grandeza diminui, a outra grandeza tamb\u00e9m diminui.<\/p>\n<p>Exemplo: dist\u00e2ncia percorrida por um m\u00f3vel em um determinado tempo.<\/p>\n<p><strong>Regra de tr\u00eas inversa:<\/strong>\u00a0\u00e9 quando uma grandeza varia de forma inversamente proporcional a outra.<strong>\u00a0<\/strong><\/p>\n<p>Exemplo: velocidade m\u00e9dia de um m\u00f3vel em um determinado tempo s\u00e3o inversamente proporcionais, ou seja, quanto maior for a velocidade m\u00e9dia menor ser\u00e1 o tempo.<\/p>\n<p>\u00c9 importante saber que no cotidiano utilizamos regra de tr\u00eas em diversas situa\u00e7\u00f5es, e isso facilita de forma consider\u00e1vel a nossa rotina, por exemplo, quando queremos fazer uma receita ou queremos aumentar uma receita, utilizamos sempre propor\u00e7\u00f5es para que o produto final d\u00ea certo.<\/p>\n<h2>Exemplos<\/h2>\n<p><strong>1)<\/strong> Para construir um muro de 20\u00a0m\u00b2 s\u00e3o necess\u00e1rios 4\u00a0pedreiros. Quantos pedreiros ser\u00e3o necess\u00e1rios para construir um muro de 100\u00a0m\u00b2 ?<\/p>\n<p>Resolu\u00e7\u00e3o:<\/p>\n<p>Muro \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 Pedreiros<br \/>\n20&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;4<br \/>\n100&#8212;&#8212;&#8212;&#8212;&#8212;&#8212;&#8211;x<\/p>\n<p>x = 400 \/ 20 \u2192 x = 20<\/p>\n<p>:. Ser\u00e3o necess\u00e1rios 20 pedreiros para construir um muro com 100 m\u00b2.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Portal S\u00e3o Francisco<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>O que \u00e9 a Regra de Tr\u00eas Simples A\u00a0Regra de Tr\u00eas Simples \u00e9 uma t\u00e9cnica matem\u00e1tica que estabelece uma rela\u00e7\u00e3o de proporcionalidade entre grandezas, utilizada em situa\u00e7\u00f5es quando se desconhece uma entre duas\u00a0grandezas. Essa t\u00e9cnica tamb\u00e9m \u00e9 utilizada no c\u00e1lculo de porcentagem. A regra de tr\u00eas possui duas classifica\u00e7\u00f5es: direta ou\u00a0inversa. Regra de tr\u00eas direta: [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":126253,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[414],"tags":[],"class_list":["post-122316","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-matematica"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Regra de Tr\u00eas Simples, O que \u00e9 Regra de Tr\u00eas Simples<\/title>\n<meta name=\"description\" content=\"Regra de Tr\u00eas Simples, O que \u00e9, Matem\u00e1tica, Rela\u00e7\u00e3o, Propor\u00e7\u00e3o, Grandeza, Direta, Inversa, Exemplo, Regra de Tr\u00eas Simples\" \/>\n<meta name=\"robots\" content=\"noindex, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<meta property=\"og:locale\" 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