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Justine0123
@Justine0123
May 2019
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Bonjour alors , j'ai un problème en math :
A l'aide des info donnée , détermine combien pèsent : le gros Dédé , le petit Francis & le chein Boudin !
gros dédé + chien = 137kg
gros dédé + Francis = 143kg
Francis + chien = 32kg
Combien pèsent ils chacun merci a ceux qui m'aideront , je vous donnerai 1Opts en plus <3 !
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Bonjour,
GD+C = 137kg
GD+F = 143kg
F+C = 32kg
GD+F = 143kg
C+F = 32kg
on peut écrire ds C+F = 32kg :
F = 32-C
on remplace F ds GD+F = 143kg
GD+32-C = 143kg
GD-C = 143-32 = 111kg
on sait que GD+C = 137kg
GD+C = 137kg
GD-c = 111kg
2GD = 248kg
GD = 124KG
GD+C = 137kg
124+C = 137kg
C =
137-124
= 13kg
F+C = 32kg
F+13 = 32kg
F = 19KG
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Verified answer
Bonjour,GD+C = 137kg
GD+F = 143kg
F+C = 32kg
GD+F = 143kg
C+F = 32kg
on peut écrire ds C+F = 32kg :
F = 32-C
on remplace F ds GD+F = 143kg
GD+32-C = 143kg
GD-C = 143-32 = 111kg
on sait que GD+C = 137kg
GD+C = 137kg
GD-c = 111kg
2GD = 248kg
GD = 124KG
GD+C = 137kg
124+C = 137kg
C = 137-124 = 13kg
F+C = 32kg
F+13 = 32kg
F = 19KG