Odpowiedzi

2010-04-11T15:45:01+02:00
S = 300km
t = 2,75h
Vśr = s/t
Vśr = 300km/2,75h
Vśr = 109,1km/h
2010-04-11T15:46:30+02:00
2 i 3/4 = 11/4= 275/100=2.75

V-prędkość
V= S/t

V= 300km/ 2.75h

V= 109 km/h