SOLUTION: Brass is an alloy created using 80% copper and 20% zinc. If Henri’s brass trumpet contains 48 ounces of copper, how many ounces of zinc are in the trumpet?

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Question 215971: Brass is an alloy created using 80% copper and 20% zinc. If Henri’s brass trumpet contains 48 ounces of copper, how many ounces of zinc are in the trumpet?
Answer by checkley77(12844) About Me  (Show Source):
You can put this solution on YOUR website!
copper/zinc=.80/.20=4
48/x=4
4x=48
x=12 oz. of zinc.