Comentários sobre: Resolver problemas de Matemática http://www.professoronline.net/resolver-problemas-de-matematica/ Tue, 09 Nov 2021 23:24:03 +0000 hourly 1 https://wordpress.org/?v=4.1.41 Por: Kemi http://www.professoronline.net/resolver-problemas-de-matematica/comment-page-1/#comment-1162 Mon, 26 Aug 2013 15:13:26 +0000 #comment-1162 Gastou 32%, sobrou 68%.
Desses 68% gastou 10% :
o,68 x 0,1= 0,068 Total
0,68-0,068= 61,2% sobraram
Então:

61,2%=290,70
100% =x

61,2x= 290,70×100
61,2x=29070
x=29070/61,2
x= 475

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