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Mathematics, 29.01.2020 02:00 kaizodude

Acoin 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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Acoin contains 9 grams of nickel and 16 grams of copper, for a total weight of 2 grams. what percent...
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