Respostas

2014-04-27T13:03:49-03:00
2014-04-27T13:08:13-03:00
 \frac{48}{24} = \frac{x}{3}

Meios pelos extremos: 48*3 = 24*x
144 = 24x
24x = 144
x =  \frac{144}{24}
x = 6