Odpowiedzi

2009-11-07T19:11:54+01:00
3m x 4,5m x 2,5= 33,75m=33750 dm

m=d x v
m= 1,146 x 33750
m= 38677,5

38677,5--------- 100%
x ---------------78%

78% x 38677,5
----------------- = 30168,45 g = 30,17 kg
100%