Zadanie 2., d) - strona 7
Zadanie
Rozwiązanie
2 h = 120 min = 7200 s
25 h = 1500 min = 90 000 s
1,25 h = 75 min = 4500 s
Wyjaśnienie
Pamiętaj, że: 1 h = 60 min = 3600 s; 1 min = 60 s
2 h = 2 ⋅ 60 min = 120 min; 2 h = 2 ⋅ 3600 s = 7200 s
25 h = 25 ⋅ 60 min = 1500 min; 25 ⋅ 3600 s = 90 000 s
