Mathematics
Mathematics, 05.07.2019 16:00, diontna29

Un herrero fabrica aleaciones utilizando como base tres minerales: plata, hierro y cobre. se conoce que cada kilogramo de plata, hierro, y cobre cuestan respectivamente 10, 4 y 2 monedas de oro. el herrero requiere 11 kilogramos de una aleaci ́on, cuyo costo en materiales sea de 40 monedas de oro, y adem ́as, para garantizar su efectividad es necesario que la cantidad de hierro sea el doble de la cantidad de cobre. ¿qu ́e cantidad de cobre es necesaria para elaborar la aleaci ́on?

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Un herrero fabrica aleaciones utilizando como base tres minerales: plata, hierro y cobre. se conoce...

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