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Ju69
@Ju69
April 2019
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BONSOIR
Calculer AB :
a) AB/2 = 3/5 b) 3/AB = 5/6 c) 6/7=AB/4 d)3/14=9/AB
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Edwardd
Bonjour,
a)
AB / 2 = 3 / 5.
AB =
3 x 2 / 5 = 6 / 5
= 1,2.
b)
3 / AB = 5 / 6.
AB x 5 = 3 x 6.
AB x 5 = 18.
AB x 5 / 5 = 18 / 5.
AB = 3,6.
c)
6 / 7 = AB / 4.
AB =
6 x 4 / 7
= 24 / 7.
d)
3 / 14 = 9 / AB.
AB x 3 = 9 x 14.
AB x 3 = 126.
AB x 3 / 3 = 126 / 3.
AB = 42.
0 votes
Thanks 1
ju69
Merci mais juste je n'ai pas compris le C ??
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Lista de comentários
a) AB / 2 = 3 / 5.
AB = 3 x 2 / 5 = 6 / 5 = 1,2.
b) 3 / AB = 5 / 6.
AB x 5 = 3 x 6.
AB x 5 = 18.
AB x 5 / 5 = 18 / 5.
AB = 3,6.
c) 6 / 7 = AB / 4.
AB = 6 x 4 / 7 = 24 / 7.
d) 3 / 14 = 9 / AB.
AB x 3 = 9 x 14.
AB x 3 = 126.
AB x 3 / 3 = 126 / 3.
AB = 42.