Mathematics, 27.05.2021 22:00, shainaanderson24

Un conducteur roule pendant 1 h 48 min à la vitesse moyenne de 80km/h, puis pendant 42 minutes à la vitesse moyenne de 90 km/h.
1)Combien de temps a-t-il roulé ?
2)Quelle distance a-t-il parcourue au total ?
3

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Un conducteur roule pendant 1 h 48 min à la vitesse moyenne de 80km/h, puis pendant 42 minutes à la...