Bonjour;
Jacques: x
Pierre : x-40
Paul: x-40-20 = x-60
5 m = 500cm
x+x-40+x-60 = 500
3x-100 = 500
3x = 500+100
3x = 600
x= 600/3
x= 200
Jacques: 200cm = 2m
Pierre: 200-40 = 160=1,60m
Paul: 200-60 = 140 =1,40m
Réponse:
pierre mesure 1 m 60, Paul mesure 1 m 40 et Jacques mesure 2 m
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Bonjour;
Jacques: x
Pierre : x-40
Paul: x-40-20 = x-60
5 m = 500cm
x+x-40+x-60 = 500
3x-100 = 500
3x = 500+100
3x = 600
x= 600/3
x= 200
Jacques: 200cm = 2m
Pierre: 200-40 = 160=1,60m
Paul: 200-60 = 140 =1,40m
Réponse:
pierre mesure 1 m 60, Paul mesure 1 m 40 et Jacques mesure 2 m