SOLUTION: how much of an allow that is 30% copper should be mixed with 200 ounces of an alloy that is 70% copper in order to get an alloy that is 50% copper

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Question 477873: how much of an allow that is 30% copper should be mixed with 200 ounces of an alloy that is 70% copper in order to get an alloy that is 50% copper
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
50 is the average of 30 and 70, so it's equal amounts.
200 ounces