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yaughs
@yaughs
April 2022
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Bonsoir , pouvez vous m’aider pour l’exercice 29/30 et 31 s’il vous plaît ? Merci d’avance
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taalbabachir
Réponse :29) a) hausse de 12 % ⇒ CM = 1.12b) baisse de 24 % ⇒ CM = 1 - 0.24 = 0.76c) augmenté de 8.5 % ⇒ CM = 1 + 0.085 = 1.085d) diminué de 13.5 % ⇒ CM = 1 - 0.135 = 0.86530)a) CM = 1.4 ⇒ + 40 % CM = 0.92 ⇒ - 8 % CM = 2.5 ⇒ + 150 %31)a) 750 x 1.035 = 776.25 €b) 190 x 0.935 = 177.65 €c) 96/1.28 = 75 € Explications étape par étape :
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yaughs
Merci
shana555
29a) hausse 12% 1 + t /100 = 1 + 12/100 = 1 + 0,12 = 1,12%b) baisse 24%1 - t/100 = 1 - 24/100 = 1 - 0,24 = 1,24%c) augmenter 8,5% 1 + t/100 = 1 + 8,5/100 = 1 + 0,085 = 1,085%d) diminuer 13,5% 1 + t/100 = 1 - 13,5/100 = 1 + 0,135 = 1,135%30a. 1,4 - 1 =0,4 = 40/100 = 40%b. 1 - 0,92 = 0,08 = 8/100 = 8%c. 2,5 - 1 = 1,5 = 150/100= 150%
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