SOLUTION: What amounts of 70% pure silver and 75% pure silver should be mixed to obtain 14 grams of 70% pure silver?

SOLUTION: What amounts of 70% pure silver and 75% pure silver should be mixed to obtain 14 grams of 70% pure silver?

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Question 253878: What amounts of 70% pure silver and 75% pure silver should be mixed to obtain 14 grams of 70% pure silver?
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
I don't think it can be done with .75
.70x+.75*(14-x)=.7*14
The solution says to use 14 grams of 70%

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