20s = 20/3600h = 2/360h = 1/180h
1h ---- 45km
1/180h ----- x km
x = 45/180km = 1/4km = 250m
Odpowiedź:
1 h = 3600 s
20/3600 = 1/180 h
45 km/h * 1/180 h = 45/180 km = 0,25 km = 250 m
Samochód w ciągu 20s pokonuje 0,25 km = 250 m
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20s = 20/3600h = 2/360h = 1/180h
1h ---- 45km
1/180h ----- x km
x = 45/180km = 1/4km = 250m
s = 45*(1/180) = 250m
Odpowiedź:
1 h = 3600 s
20/3600 = 1/180 h
45 km/h * 1/180 h = 45/180 km = 0,25 km = 250 m
Samochód w ciągu 20s pokonuje 0,25 km = 250 m