Réponse :
exercice 2
50% augmentation = 1+50/100 =0,50 f(x) = 0,5x
25% baisse =1-25/100 =0,75 g(x) =0,75x
17% de baisse =1-17/100=0,83 h(x)= 0,83x
19% augmentation = 1+19/100=1,19 d(x) = 1,19x
exercice 3:
28*0,85=23,8e
cm = 0,85
a) y=0,85x
b)f(x) = 0,85x
Explications étape par étape
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Réponse :
exercice 2
50% augmentation = 1+50/100 =0,50 f(x) = 0,5x
25% baisse =1-25/100 =0,75 g(x) =0,75x
17% de baisse =1-17/100=0,83 h(x)= 0,83x
19% augmentation = 1+19/100=1,19 d(x) = 1,19x
exercice 3:
28*0,85=23,8e
cm = 0,85
a) y=0,85x
b)f(x) = 0,85x
Explications étape par étape