Respostas

2014-05-09T12:53:32-03:00
Regra de Três

7,86 g>>>>>>>>>>>>>>>>> 1 cm cúbico
 X    g>>>>>>>>>>>>>>>>>> 120 cm cubico
x= 7,86*120
x= 943,29 g
2014-05-09T13:45:12-03:00
M = massa
d = densidade
v = volume
d = m/v >> m = v x d
m = 120 x 7,86
m = 943,2g