a) 2 h = 2 x 60 = 120 minutes et 120 x 60 = 7 200 s b) 1.5 h = 1 h + 0.5 x 60 = 1 h 30 minutes = 3 600 + 18 = 3 618 s c) 1 h 40 minutes = 60 + 40 = 100 minutes = 100 x 60 = 6000 s
a) 0.12 km/s = 120 m/s
b) 3 600 m/h = 3600 : 3600 = 1 m/s c) 240 m/min = 240 : 60 = 4 m/s
Lista de comentários
a) 2 h = 2 x 60 = 120 minutes et 120 x 60 = 7 200 s
b) 1.5 h = 1 h + 0.5 x 60 = 1 h 30 minutes = 3 600 + 18 = 3 618 s
c) 1 h 40 minutes = 60 + 40 = 100 minutes = 100 x 60 = 6000 s
a) 0.12 km/s = 120 m/s
b) 3 600 m/h = 3600 : 3600 = 1 m/s
c) 240 m/min = 240 : 60 = 4 m/s
Verified answer
2 h = 120 minutes car 1 h égal 60 minutes1,5 h = 90 minutes
1h40min=100 minutes