Jacek przejechał rowerem 22km w 3h i 10 minut. Z jaką prędkością sie poruszał?
3h i 10min = 3 * 60min + 10min = 190min
22km ----------- 190min
1km ------------- x min
x = (1 * 190) : 22 = 190 * 1/22 = 190/22 = 95/11 = 8,(63) min
Pokonywał 1km w ciągu 8,(63)min.
s- droga = 22km
t- czas 3h i 10min= 3,17h
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3h i 10min = 3 * 60min + 10min = 190min
22km ----------- 190min
1km ------------- x min
x = (1 * 190) : 22 = 190 * 1/22 = 190/22 = 95/11 = 8,(63) min
Pokonywał 1km w ciągu 8,(63)min.
s- droga = 22km
t- czas 3h i 10min= 3,17h