Respostas

2014-07-25T16:23:02-03:00
Vm= \frac{Distancia}{tempo}

50= \frac{600}{t}

t= \frac{600}{50}= \frac{600:10}{50:10}= \frac{60}{5}=12h

Ele levou 12h
1 5 1
2014-07-25T17:07:41-03:00
Vm= s/t
50=600/t
t=600/50
t= 12 horas