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fxtghm
@fxtghm
January 2021
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La distance parcourue par une voiture qui roule à la vitesse de 90km/h pouissance -1 pendant 2h 15 min est: ?
Svp aider-moi, j'arrive pas à le faire
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ficanas06
Verified answer
Vitesse = Distance / temps => distance = vitesse * temps
15/60= 0.25 => 2h 15 min = 2.25 h
donc d = 2.25 * 90 =
202.5 km
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Thanks 2
fxtghm
Merci mais la puissance -1 elle finit où? Tu ne l'as pas citer dans ton calcul, pourquoi?
ficanas06
la puissance *1 est seulement dans la notation: on peut écrire 90km/h ou 90km.h puissance -1.
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Verified answer
Vitesse = Distance / temps => distance = vitesse * temps15/60= 0.25 => 2h 15 min = 2.25 h
donc d = 2.25 * 90 = 202.5 km