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LaryssaCDSRS
@LaryssaCDSRS
January 2020
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Se 3,5 kg de feijão custa R4,55. Quanto custa 6,5 kg?
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antoniopedro25
Regra de 3 basica.
Se
3,5Kg---4,5
6,5Kg---x
3,5x=29,25
x=29,25/3,5
x
≈8,35
16 votes
Thanks 25
xkroton
Da para resolver isso com uma "regra de 3":
3,5kg ------------- R$4,55
6,5kg ------------- x
3,5x = 29,575
x = 29,575/3,5
x = 8,45
Portanto, 6,5kg custam R$8,45
11 votes
Thanks 12
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Lista de comentários
Se
3,5Kg---4,5
6,5Kg---x
3,5x=29,25
x=29,25/3,5
x≈8,35
3,5kg ------------- R$4,55
6,5kg ------------- x
3,5x = 29,575
x = 29,575/3,5
x = 8,45
Portanto, 6,5kg custam R$8,45