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Steeven62
@Steeven62
April 2019
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MERCI POUR VOTRE AIDE SUR CE DEVOIRS
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winner123
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Bonsoir
Mr Dupont aura payé : 1/4 + 2/5 = 5/20 + 8/20 = 13/20
1) il reste 20/20 - 13/20 = 7/20 à payer
chaque mensualité représente : 7/20 : 4 = 7/20 x 1/4 = 7/80
7/80 = 77 €
80/80 = ( 80 x 77) / 7 =
880 €
- périmètre de ABCD = 2 ( 4 x +3 + 4) = 8 x + 6 + 8 =
8 x + 14
- aire = (3 + 4 x ) ( 4) =
12 + 16 x
a = - 6 x² + 8 x - 4 + x =
- 6 x² + 9 x - 4
programme
2
5 x 2 = 10
10 + 3 = 13
2 x 13 = 26
26 - 6 = 20
20/10 = 2
le programme redonne le nombre initial
pain au chocolat = x
croissant = x + 0.20
2) 4 x + 5 ( x + 0.2) = 4 x + 5 x + 1 =
9 x + 1
dépense = 4 x 0.8 + 5 x 1 = 3.2 + 5 =
8 .20 €
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Bonsoir, merci de m 'aider pour le devoirs suivant
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Verified answer
BonsoirMr Dupont aura payé : 1/4 + 2/5 = 5/20 + 8/20 = 13/20
1) il reste 20/20 - 13/20 = 7/20 à payer
chaque mensualité représente : 7/20 : 4 = 7/20 x 1/4 = 7/80
7/80 = 77 €
80/80 = ( 80 x 77) / 7 = 880 €
- périmètre de ABCD = 2 ( 4 x +3 + 4) = 8 x + 6 + 8 = 8 x + 14
- aire = (3 + 4 x ) ( 4) = 12 + 16 x
a = - 6 x² + 8 x - 4 + x = - 6 x² + 9 x - 4
programme
2
5 x 2 = 10
10 + 3 = 13
2 x 13 = 26
26 - 6 = 20
20/10 = 2
le programme redonne le nombre initial
pain au chocolat = x
croissant = x + 0.20
2) 4 x + 5 ( x + 0.2) = 4 x + 5 x + 1 = 9 x + 1
dépense = 4 x 0.8 + 5 x 1 = 3.2 + 5 = 8 .20 €