Question

Zamień:
20min = ...h
200min=...h
0,6h=...min
1,3h=...min
Daję naj :)

Answer 1

20 min = 20·1/60 h = 1/3 h
200 min = 200· 1/60 h = 200/60 h = 3i1/3 h
0,6 h = 36 min
6/10  h -------------·x
1/60 h --------------1 min
6/10 h·1 min = 1/60  h x
x = 6/10 /1/60 = 6·60/10·1 = 360/10 min = 36 min
1,3 h = 78 min
13/10 h ------------ x
1/60 h  ------------- 1 min
13/10 h·1 min = 1/60 h·x
x = 13/10 / 1/60
x = 13·60/10 min
x = 780/10 min = 78 min

Answer 2

20min = 1/3h
200min = 3 i 1/3h
0,6h = 36min
1,3h=78min