Mathematics, 19.04.2021 20:50 shanicet047ox9ff6

Se tiene una mezcla de agua y alcohol al 60%, si se quiere tener una concentración de 70% de alcohol, ¿qué cantidad de alcohol se debe agregar a la mezcla si inicialmente se tenían 420 litros de mezcla?

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Se tiene una mezcla de agua y alcohol al 60%, si se quiere tener una concentración de 70% de alcohol...

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