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LOLVA
@LOLVA
May 2019
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Bonjour j'ai besoins d'aides !
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MonsieurFirdown
Verified answer
Bonjour
1) 3200/8×1000 = 400 000
D'où 400 milliers
2)
a) 8x1.05=8,4€
3200/8.4x1000 = 380 952, soit 391 milliers
b)
●Avant : 3200 / 8 = 400 milliers de feuilles
1ans après 3200 / 8,4 = 380,95milliers de feuilles
●En fait : 400 -380,95= 19,05 D'où ( 19,05/ 400 ) × 100 = 4,87 %
3)
●On a : 1+(p/100)= (100+p)/100
●Du coup N égale :
N=3200:8/(100+p)/100
N=400/ (100+p)/100
N=40 000/ (100+p)
b)
● 100 / ( p + 100 ) = [ ( p + 100 ) - p ] / ( p + 100 ) = 1 - [ p / ( p + 100 ) ] = 1 - [ 100p / ( p + 100 ) ] /100].
●Une diminution de : 100p/(p+100) en %
c)
●On resoud : 100p / ( p + 100 ) < 8
●On a donc :
100p / ( p + 100 ) < 8
( p + 100 ) 100p / ( p + 100 ) < 8 ( p + 100 )
100p < 8 ( p + 100 )
100p < 8p+800
100p -8p < 800
92p < 800
p < 800/92
p = 8,70
●Conclusion : Une augmentation maximale de 8,70 %
Voilà ^^
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Lista de comentários
Verified answer
Bonjour1) 3200/8×1000 = 400 000
D'où 400 milliers
2)
a) 8x1.05=8,4€
3200/8.4x1000 = 380 952, soit 391 milliers
b)
●Avant : 3200 / 8 = 400 milliers de feuilles
1ans après 3200 / 8,4 = 380,95milliers de feuilles
●En fait : 400 -380,95= 19,05 D'où ( 19,05/ 400 ) × 100 = 4,87 %
3)
●On a : 1+(p/100)= (100+p)/100
●Du coup N égale :
N=3200:8/(100+p)/100
N=400/ (100+p)/100
N=40 000/ (100+p)
b)
● 100 / ( p + 100 ) = [ ( p + 100 ) - p ] / ( p + 100 ) = 1 - [ p / ( p + 100 ) ] = 1 - [ 100p / ( p + 100 ) ] /100].
●Une diminution de : 100p/(p+100) en %
c)
●On resoud : 100p / ( p + 100 ) < 8
●On a donc :
100p / ( p + 100 ) < 8
( p + 100 ) 100p / ( p + 100 ) < 8 ( p + 100 )
100p < 8 ( p + 100 )
100p < 8p+800
100p -8p < 800
92p < 800
p < 800/92
p = 8,70
●Conclusion : Une augmentation maximale de 8,70 %
Voilà ^^