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Lilou469
@Lilou469
May 2019
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Bonjours,
Un troupeau est composé de dromadaires et de chameaux
On compte 90 têtes et 152 bosses. Sachant qu'un dromadaire a une bosse et un chameau 2, combien y a-t-il d'animaux de chaque espèce?
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Bonjour,
niveau 5eme/4eme
x =les droma
(90-x) = les chameaux
x+2(90-x) = 152
x+180-2x = 152
-x = 152-180
-x = -28
x = 28
28 droma
90-28 = 62 chameaux
véréfication :
28*1 + 62*2 = 152
1 votes
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Verified answer
Bonjour,niveau 5eme/4eme
x =les droma
(90-x) = les chameaux
x+2(90-x) = 152
x+180-2x = 152
-x = 152-180
-x = -28
x = 28
28 droma
90-28 = 62 chameaux
véréfication :
28*1 + 62*2 = 152