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nathan7743
@nathan7743
January 2023
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2) Une automobiliste a parcouru 304 km en 3 h 12 min.Quelle est sa vitesse moyenne sur ce trajet ? 2,5pts
3) Emma roule à vélo pendant 1h 48 min à la vitesse moyenne de 19 km/h.Quelle distance a-t-elle parcourue ? 2,5 pts
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youssef1062h
Verified answer
2/ 60min ===> 1h
12min ====> x h
x = 12/60
x = 0.2h
V = d/t
V = 304/ 3.2
V = 95km/h
3/ 60min ===> 1h
48min ===> x h
x = 48/60
x = 0.8
V = d/t
d = V x t
d = 19 x 1.8
d = 34.2km
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Verified answer
2/ 60min ===> 1h12min ====> x h
x = 12/60
x = 0.2h
V = d/t
V = 304/ 3.2
V = 95km/h
3/ 60min ===> 1h
48min ===> x h
x = 48/60
x = 0.8
V = d/t
d = V x t
d = 19 x 1.8
d = 34.2km