SOLUTION: Canu help me correctly set up this problem... How much of an alloy that is 30% copper should be mixed with 600oz of an alloy that is 90% copper in order to get an alloy that is 70

Question 407372: Canu help me correctly set up this problem...
How much of an alloy that is 30% copper should be mixed with 600oz of an alloy that is 90% copper in order to get an alloy that is 70% copper?
Answer by katealdridge(100) (Show Source): You can put this solution on YOUR website!
Let # of ounces of 30% copper alloy = x
# of ounces of 90% copper alloy = 600.

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