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A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 2 grams. What percentage of the metal in the coin is copper?
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A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 2 grams. What percentage of the metal in the coin is copper?

User Steve Lacey
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1 Answer

3 votes

16/25 = 64% is your final answer :)

User Skline
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