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Knounouze
@Knounouze
January 2021
1
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Qui peut m'aider à faire cet exercice ? Merci à ceux qui m'aideront
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trudelmichel
Verified answer
Bonjour,
si il a vendu 5/9 des disques
alors
il reste
1-5/9=9/9-5/9=4/9
il reste 4/9
si il vend 3/5 du reste
alors il vend
3/5x4/9=3x4/5x9=3x4/5x3x3=4/5x3=4/15
lors de la 2émé vente il vend
4/15
il a vendu
5/9 et 4/15
5/9=5x5/9x5=25/45
4/15=4x3/15x3=12/45
25/45+12/45=37/45
il a vendu 37/45 des disques
il lui reste
1-37/45=45/45-37/45=8/45
si 8/45 corresponde à 24
alors
il y avait
(24/8)x45
3x45=135 disques
1 votes
Thanks 1
Knounouze
Je vous remercie beaucoup pour votre aide !!!
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Verified answer
Bonjour,si il a vendu 5/9 des disques
alors
il reste
1-5/9=9/9-5/9=4/9
il reste 4/9
si il vend 3/5 du reste
alors il vend
3/5x4/9=3x4/5x9=3x4/5x3x3=4/5x3=4/15
lors de la 2émé vente il vend
4/15
il a vendu
5/9 et 4/15
5/9=5x5/9x5=25/45
4/15=4x3/15x3=12/45
25/45+12/45=37/45
il a vendu 37/45 des disques
il lui reste
1-37/45=45/45-37/45=8/45
si 8/45 corresponde à 24
alors
il y avait
(24/8)x45
3x45=135 disques