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samir94410
@samir94410
June 2021
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Salut, j'ai besoin d'aide pour un exercice de maths ; en pièce jointe.
Merci d'avance, répondez pas si vous êtes pas sur :p
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winner123
Verified answer
Bonsoir
A = 7/15 -2/15 x 9/4
tu dois commencer par la multiplication
A = 7/15 - 18/60
A = 28/60 - 18/60 = 10/60 = 1/6
B = 25 x 3 x 10^4 sur 2 x 10²
B = 75 x 10^4 sur 2 x10²
B = 37.5 x 10^²
B = 3.75 x 10² x10² = 3.75 x 10^4
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Verified answer
BonsoirA = 7/15 -2/15 x 9/4
tu dois commencer par la multiplication
A = 7/15 - 18/60
A = 28/60 - 18/60 = 10/60 = 1/6
B = 25 x 3 x 10^4 sur 2 x 10²
B = 75 x 10^4 sur 2 x10²
B = 37.5 x 10^²
B = 3.75 x 10² x10² = 3.75 x 10^4