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erxux
@erxux
January 2021
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Bonjour, je n’arrive pas cet exercice de maths, merci de m’aider :
Lors du percement du tunnel sous la Manche, quand les conditions étaient favorables, les tunneliers avançaient 7cm/min. Déterminer la distance qu’ils creusaient en 12heures.
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zoubizou2
1h=60min
12h=720min
d=v×t=7×720=5040cm
ils auront donc parcourue 5040cm en 12h
1 votes
Thanks 2
ficanas06
5040 cm ou 50.4 m
zoubizou2
c la meme chose
ficanas06
On essaie toujours d'exprimer une mesure dans l'unité la mieux adaptée (ici, 50.4 m)
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Lista de comentários
12h=720min
d=v×t=7×720=5040cm
ils auront donc parcourue 5040cm en 12h