Mathematics, 25.01.2021 15:10 potato3999

7.-Disponemos de dos tipos de líquido de 0,8 €/litro y de 1,2 €/litro, respectivamente. Mezclamos 13 litros del primer tipo con cierta cantidad del segundo tipo, resultando el precio de la mezcla a 1,1 €/litro. ¿Cuántos litros de líquido del segundo tipo hemos utilizado?

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7.-Disponemos de dos tipos de líquido de 0,8 €/litro y de 1,2 €/litro, respectivamente. Mezclamos 13...