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Laura242
@Laura242
April 2019
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Bonjour voici mon Dm de mathématiques. Merci pour votre aide ;)
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winner123
Verified answer
Bonsoir
Soit x le chocolat et y le jus d'orange
3x + 2y = 10
x +4 y = 8
3x +2 y = 10
- 3x - 12y = - 24
-10 y = -14
y = 1.4
le jus d'orange coûte 1.40€
x + 5.6 = 8
x = 8 -5.6
x = 2.4
le chocolat vaut 2.40€
(2.4 et 1.4) est le couple solution
on vérifie
3x +2y = 10
7.2 + 2.80 = 10
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Thanks 1
laura242
Bonsoir, merci pour ton aide mais pourrais tu me dire ou est ce que je dois mettre les informations sur ma fiche? Merci
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Bonjour, urgent SVP.!!merci
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Verified answer
BonsoirSoit x le chocolat et y le jus d'orange
3x + 2y = 10
x +4 y = 8
3x +2 y = 10
- 3x - 12y = - 24
-10 y = -14
y = 1.4
le jus d'orange coûte 1.40€
x + 5.6 = 8
x = 8 -5.6
x = 2.4
le chocolat vaut 2.40€
(2.4 et 1.4) est le couple solution
on vérifie
3x +2y = 10
7.2 + 2.80 = 10