SOLUTION: how many lb. of metal containing 30% copper must be combined with 12 lb. of pure copper to form an alloy containing 86% copper
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Question 908495: how many lb. of metal containing 30% copper must be combined with 12 lb. of pure copper to form an alloy containing 86% copper
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
The problem is one of these kinds, solved in the same way:
Mixture: one material quantity unknown - http://www.algebra.com/my/Two-Part-Mixture-with-one-material-quantity-unknown.lesson?content_action=show_dev
The pure copper is 100% copper.
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