SOLUTION: What amounts of 25\% pure silver and 35\% pure silver should be mixed to obtain 14 grams of 31\% pure silver?

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Question 827139: What amounts of 25\% pure silver and 35\% pure silver should be mixed to obtain 14 grams of 31\% pure silver?
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
Two known concentrations of one substance, both quantities of the materials unknowns; but amount of mixture known, and result concentration known.

See in my profile, the lesson link, for "Mixing two concentrations for known amount of mixture "