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Momoihounau
@Momoihounau
May 2019
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Bonjour, j'ai deux exercices de maths à faire j'ai plusieurs hypothèses pour La réponse mais je ne suis pas sur slvp Help me ex 40 et 100, merci
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Bonjour,
exo 100 :
(AC)//(BD)
thales
OA/OB = OC/OD=AC/BD
3/5 = x/(x+2,5)
3(x+2,5) = 5*x
3x+7,5 =5x
3x-5x =-7,5
x = 3,75
N° 40 :
a) x+2/5 = 5
x =5-2/5
x = 23/5
b) 2x/3 + x = 5 à calculer
c) 5x/3 = 5
à calculer
2 votes
Thanks 2
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Verified answer
Bonjour,exo 100 :
(AC)//(BD)
thales
OA/OB = OC/OD=AC/BD
3/5 = x/(x+2,5)
3(x+2,5) = 5*x
3x+7,5 =5x
3x-5x =-7,5
x = 3,75
N° 40 :
a) x+2/5 = 5
x =5-2/5
x = 23/5
b) 2x/3 + x = 5 à calculer
c) 5x/3 = 5
à calculer