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Chamo
@Chamo
May 2019
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Bonjour
pouvez-vous m'aider sur un exercice s'il vous plaît merci et ç'est à rentre demain je vous remercie pour tout ce qui m'aideront
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Bonjour,
1) Il a mis ≈ 2 h pour parcourir ≈ 40 km, donc : ≈20 km/h
2) 2 h 15 mn = 2 h + 1/4 d'heure = 2 h + 0,25 h = 2,25 h
vitesse = distance ÷ temps
donc : V = 42,195 km ÷ 2,25 h = 18,753333333....... km/h
3) 2 h 15 mn - 2 h 2 mn 57 s = 12 mn 3 s
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1) Il a mis ≈ 2 h pour parcourir ≈ 40 km, donc : ≈20 km/h
2) 2 h 15 mn = 2 h + 1/4 d'heure = 2 h + 0,25 h = 2,25 h
vitesse = distance ÷ temps
donc : V = 42,195 km ÷ 2,25 h = 18,753333333....... km/h
3) 2 h 15 mn - 2 h 2 mn 57 s = 12 mn 3 s