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7) Resolva os seguintes problemas envolvendo frações:

a) Em uma rede de supermercados, sabe-se que, em média, a cada 120 caixas de leite vendidas, 72 são da
marca Bela Fazenda. Então, se um atendente de caixa efetua, em média, a venda de 20 caixas de leite por
turno, quantas destas serão da marca Bela Fazenda? Ainda, se outro atendente efetua, em média, a venda de
15 caixa de leite Bela Fazenda, de quantas caixas de leite, no total, ele efetua a venda?


Sagot :

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