Respostas

2013-10-17T21:24:45-03:00
8,4/42=x/30
42x=2520
X=2520/42
X=60
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A melhor resposta!
2013-10-17T21:26:35-03:00
Teorema de tales boladão
8,4 = x
5*8,4 = 30

252 = 42x

x = 252/42

x = 6




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