Respostas

2014-06-03T19:49:48-03:00
30 --------------------- 100
06-----------------------x

30x= 600
x=20
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2014-06-03T19:49:59-03:00
30 --- 100
6 ----- x

x=6.100/30
x=20

Espero ter ajudado :)
1 5 1