Mathematics, 04.12.2020 17:00, starfox5454

Una compañía minera extrae mineral en dos minas. En la mina A éste contiene 1% de níquel y 2% de cobre; en la mina B es 2% níquel y 5% cobre.

¿Qué cantidad debemos extraer de cada mina para obtener 4 toneladas de níquel

y 9 de cobre?

Answers: 1

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Una compañía minera extrae mineral en dos minas. En la mina A éste contiene 1% de níquel y 2% de co...