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Marclo
@Marclo
April 2019
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Bonjour pouvez-vous m'aider ?
Deux arbres mesurent à eux deux 5,6 mètres.
La hauteur du plus petit représente les 3/4 de la hauteur du plus grand.
Quelle est la hauteur de chacun des 2 arbres?
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Verified answer
X = grand arbre
3x/4 = petit arbre
et ils
mesurent à eux deux 5,6 mètres.
x+(3x/4) = 5,6
(4x+3x)/4 = 22,4/4
7x = 22,4
x = 3,20
x = grand arbre = 3,20m
3x/4 = petit arbre = (3,2*3)/4 = 2,40m
1 votes
Thanks 0
winner123
Bonjour
tu appelles x l'arbre le plus grand
le plus petit = 3/4x
x +3/4x = 5.6
4x + 3x = 22.4
7x = 22.4
x = 3.2
l
e grand mesure 3.2 m
le petit : 3.2 x 3.4 = 2.4 m
3.2 +2.4 = 5.6
2 votes
Thanks 2
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Verified answer
X = grand arbre3x/4 = petit arbre
et ils mesurent à eux deux 5,6 mètres.
x+(3x/4) = 5,6
(4x+3x)/4 = 22,4/4
7x = 22,4
x = 3,20
x = grand arbre = 3,20m
3x/4 = petit arbre = (3,2*3)/4 = 2,40m
tu appelles x l'arbre le plus grand
le plus petit = 3/4x
x +3/4x = 5.6
4x + 3x = 22.4
7x = 22.4
x = 3.2
le grand mesure 3.2 m
le petit : 3.2 x 3.4 = 2.4 m
3.2 +2.4 = 5.6