SOLUTION: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed?
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Question 202772: The ratio of the weight of copper to the weight of zinc in a U.S. penny is 1/39. If 50 kg of zinc is being turned into pennies, how much copper is needed?
Answer by rfer(16322) (Show Source): You can put this solution on YOUR website!
1/39:x/50
39x=50
x=1.28kg
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