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Duvidas sobre porcentagem e sobre o real valor da mesada de Edu
Edu foi ao shopping no sábado e gastou 20% da mesada que recebeu. NO domingo,Edu voltou ao shopping e gastou 20% do restante da mesada. Se apos a segunda ida de Edu ao shopping,sobraram 96 $,qual e em reais a mesada de Edu?O motivo da pergunta e sobre duvidas sobre o real valor da mesada de Edu e me ajudaria se respondessem.
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Answer #
Ainda tem duvida sobre Duvidas sobre porcentagem e sobre o real valor da mesada de Edu, entao utilize o campo de respostas dessa mesma pergunta para contra argumentar novas explicacoes.Answer this Question
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Answer #1
Suponha que a mesada de Edu seja x. Então teremos que após gastar 20% da mesada, ou seja, 20x/100 = 0,2 x, Edu ficará com x- 0,2x = 0,8x. No domingo, Edu gastou 20% do que sobrou, ou seja, 20% de 0,8x. (20/100) . 0,8x = 0,16x Então sobraram 0,8x – 0,16x = 0,64x, que equivale a R$96,00. Então teremos que: 0,64.x = 96 Termine agora, ok? Bons estudos!