Respostas

2013-10-27T15:48:21-02:00
Vm = d/t
20 = 400/t
20t = 400
t = 400/20
t = 20
2 5 2
2013-10-27T16:05:59-02:00
D=V.T
400=20.T
T=400/20
T=20 H
1 3 1