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Amaldirection
@Amaldirection
May 2019
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Bonjour, j'ai besoin d'aide sur un exercice que je dois rendre pour demain, en mathématiques :
1) Une automobiliste a parcouru 153 km en 2 h 15 min. Quelle a été sa vitesse moyenne sur ce trajet ?
2) Une automobiliste a roulé 3 h 30 min à la vitesse moyenne de 74 km.h-1.
Quelle distance a-t-elle parcourue ?
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winner123
Verified answer
Bonsoir
1 ) vitesse = distance / temps
2 h 15 min = 2.25 h
153 / 2.25 =
68 km/ h
2. distance = vitesse x temps donc tu peux faire
3 h 30 min = 3.5 h
0 votes
Thanks 1
bic65
1) 153/2,25 = 68 km/h
2) 3,5x74= 259 km
0 votes
Thanks 1
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Lista de comentários
Verified answer
Bonsoir1 ) vitesse = distance / temps
2 h 15 min = 2.25 h
153 / 2.25 = 68 km/ h
2. distance = vitesse x temps donc tu peux faire
3 h 30 min = 3.5 h
2) 3,5x74= 259 km