Odpowiedzi

2010-04-12T19:32:38+02:00
S = 50 * 2¾
s =137½ km
2 4 2
2010-04-12T19:33:53+02:00
50km/h x 2,45h=122,5km
2 3 2
2010-04-12T20:12:16+02:00
V- 50km/h
t- 2h 45 minut - 2,75 h
s- ?

s = v×t
s = 50× 2,75= 137,5 km
1 5 1