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sevtwirl
@sevtwirl
January 2021
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Bonjour voici un nouveau exercice de 4eme
voici mes réponses:
42 km 195 m = 2 h 15 min
donc 15 min = 0,25 h
donc 2 h 15 min = 2 , 25 h
j'ai fait le produit en croix :
42,195 * 1 /2.25 = 18,75
sa vitesse moyenne est donc de 18 ,75 KM/ H
en esperant que vous pourrez m'aider
cordialement et d avance merci
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bonjour QUI PEUT M AIDER ELEVE De 4eme D 'avance merci bcp
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