{"id":22687,"date":"2025-06-09T15:28:31","date_gmt":"2025-06-09T18:28:31","guid":{"rendered":"https:\/\/xequematenem.com.br\/blog\/?p=22687"},"modified":"2025-06-09T15:28:32","modified_gmt":"2025-06-09T18:28:32","slug":"questao-165-enem-libras-2017","status":"publish","type":"post","link":"https:\/\/xequematenem.com.br\/blog\/questao-165-enem-libras-2017\/","title":{"rendered":"Quest\u00e3o 165 &#8211; ENEM Libras 2017"},"content":{"rendered":"\n<p>Um projeto para incentivar a reciclagem de lixo de um condom\u00ednio conta com a participa\u00e7\u00e3o de um grupo de moradores, entre crian\u00e7as, adolescentes e adultos, conforme dados do quadro.<\/p>\n\n\n\n<div class=\"wp-block-group is-nowrap is-layout-flex wp-container-core-group-is-layout-6c531013 wp-block-group-is-layout-flex\">\n<figure class=\"wp-block-image size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"425\" height=\"149\" src=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2025\/06\/Um-projeto-para-incentivar.png\" alt=\"\" class=\"wp-image-22688\" title=\"\" srcset=\"https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2025\/06\/Um-projeto-para-incentivar.png 425w, https:\/\/xequematenem.com.br\/blog\/wp-content\/uploads\/2025\/06\/Um-projeto-para-incentivar-300x105.png 300w\" sizes=\"(max-width: 425px) 100vw, 425px\" \/><\/figure>\n<\/div>\n\n\n\n<p><strong>Uma pessoa desse grupo foi escolhida aleatoriamente para falar do projeto<\/strong>. Sabe-se que a probabilidade de a pessoa escolhida ser uma crian\u00e7a \u00e9 igual a dois ter\u00e7os.&nbsp;<\/p>\n\n\n\n<p>Diante disso, o n\u00famero de crian\u00e7as que participam desse projeto \u00e9&nbsp;<\/p>\n\n\n\n<p>A) 6.&nbsp;<\/p>\n\n\n\n<p>B) 9.&nbsp;<\/p>\n\n\n\n<p>C) 10.&nbsp;<\/p>\n\n\n\n<p>D) 30.&nbsp;<\/p>\n\n\n\n<p>E) 45.<\/p>\n\n\n\n<p class=\"has-text-align-center has-large-font-size\"><strong>Solu\u00e7\u00e3o<\/strong><\/p>\n\n\n\n<p>Para resolvermos essa quest\u00e3o, \u00e9 preciso compreender que o total de pessoas que participam do projeto s\u00e3o x + 10 + 5 = 15 + x<\/p>\n\n\n\n<p>Sendo ent\u00e3o, a probabilidade de escolher uma crian\u00e7a igual a &nbsp;&nbsp;&nbsp;x &nbsp; ,&nbsp;<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;15 + x&nbsp;<\/p>\n\n\n\n<p>Como sabe-se que a probabilidade de escolher uma crian\u00e7a \u00e9 \u2154 temos que a quantidade x de crian\u00e7as \u00e9:<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2 = &nbsp; &nbsp; x<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;3&nbsp; &nbsp; 15+ x<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2 ( 15 + x ) = 3x<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2x + 30 = 3x<\/p>\n\n\n\n<p>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;30 = x<\/p>\n\n\n\n<p><strong>Alternativa D<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Um projeto para incentivar a reciclagem de lixo de um condom\u00ednio conta com a participa\u00e7\u00e3o de um grupo de moradores, entre crian\u00e7as, adolescentes e adultos, conforme dados do quadro. Uma pessoa desse grupo foi escolhida aleatoriamente para falar do projeto. Sabe-se que a probabilidade de a pessoa escolhida ser uma crian\u00e7a \u00e9 igual a dois [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":22688,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,22],"tags":[],"area-do-conhecimento":[118,132],"assunto":[57],"class_list":["post-22687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-questoes-do-enem","category-22","area-do-conhecimento-matematica-e-suas-tecnologias","area-do-conhecimento-matematica","assunto-probabilidade"],"_links":{"self":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/22687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/users\/11"}],"replies":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/comments?post=22687"}],"version-history":[{"count":1,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/22687\/revisions"}],"predecessor-version":[{"id":22689,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/posts\/22687\/revisions\/22689"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media\/22688"}],"wp:attachment":[{"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/media?parent=22687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/categories?post=22687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/tags?post=22687"},{"taxonomy":"area-do-conhecimento","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/area-do-conhecimento?post=22687"},{"taxonomy":"assunto","embeddable":true,"href":"https:\/\/xequematenem.com.br\/blog\/wp-json\/wp\/v2\/assunto?post=22687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}