Odpowiedzi

2010-01-19T18:27:55+01:00
1ha=10000m²
m=15000m²*10g/m²=150000g=150kg=0,15t
42 4 42
2010-01-19T18:28:16+01:00
1,5ha = 15000 m2
15000 * 10 = 150000 [g] = 0,15 [t]
60 4 60