Les quatre dis-neuvièmes des élèves du collège sont externes : cela représente 124 élèves externes. Combien y-a-t'il d'élèves, en tout, dans ce collège?

By: USER2128
28 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
Les quatre dis-neuvièmes des élèves du collège sont externes : cela représente 124 élèves externes. Combien y-a-t'il d'élèves, en tout, dans ce collège?
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Answer (152)

Best Answer
(113)
BONJOUR,

4/19 = 124 élèves
1/19 = 124/4 = 31
19/19 = 31*19 = 589

589 élèves
Answered on 28 Agustus 2025
(322)

Les 4/19 sont externes . Nombre d'élèves total ?
4/19 = 124 élèves    19/19 représentent la totalité des élèves
124/4 = 31 X 19 = 589 
La totalité des élèves est de 589.

Vérification
589 X 4/19 = 124 élèves, c'est bien ce qui est donné dans l'énoncé.


Answered on 28 Agustus 2025

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merci

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calculer la concentration en molL en glucose,lorsqu'on le mélange dans 1,5 L d'eau.le resultat sera donné à 10-2 prés
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