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Arthur59f
@Arthur59f
April 2019
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Petit problème de mathématique, bonne chance à vous. Merci.
Cécile parcourt 234 km en 3 heures et quart, à vitesse constante. Elle a encore 108 km à parcourir, en conservant la même vitesse.
3) Combien de temps met-elle pour parcourir la distance restante ?
RÉPONDRE EN VOUS AIDANT D'UN TABLEAU DE PROPORTIONNALITÉ.
4) Quelle est la durée totale de son voyage ?.
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laurance
234 108
3 +1 /4 x
x = ( 3+ 1/4) * 108 /234 = ( 324 + 27) / 234 = 351 / 234 = 1,5
réponse 1h 30
durée totale
3h15mn + 1h30mn = 4h 45 mn
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3 +1 /4 x
x = ( 3+ 1/4) * 108 /234 = ( 324 + 27) / 234 = 351 / 234 = 1,5
réponse 1h 30
durée totale
3h15mn + 1h30mn = 4h 45 mn