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V1N1C1U51806
@V1N1C1U51806
December 2019
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Numa padaria, dona Cida comprou 4 pãezinhos e 5 broas e pagou R$3,00. Dona Dalila comprou 2 pãezinhos e 3 broas e pagou R$170. Quanto custa cada pãozinho e cada broa nesta padaria?
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exalunosp
Verified answer
4p + 5 b = 3.00
2p + 3b = 1.70 ( vezes - 2)
-----------------------
4p + 5b = 3.00
-4p - 6b =-3.40
----------------------
// - b = - 0.40
b = 0.40 *** ( broa ) >>>>>> 4p + 5( 0.40) = 3.00
4p + 2,00 = 3,00
4p = 3.00 - 2,00
4p = 1,00
p = 1,00/4 = 0.25 ( paozinho)
6 votes
Thanks 9
V1N1C1U51806
Eu fiz aqui e o meu deu que o pão é R$0,25 e a broa R$0,40 e ta certo faz as contas ae
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Verified answer
4p + 5 b = 3.002p + 3b = 1.70 ( vezes - 2)
-----------------------
4p + 5b = 3.00
-4p - 6b =-3.40
----------------------
// - b = - 0.40
b = 0.40 *** ( broa ) >>>>>> 4p + 5( 0.40) = 3.00
4p + 2,00 = 3,00
4p = 3.00 - 2,00
4p = 1,00
p = 1,00/4 = 0.25 ( paozinho)