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Fed [463]
4 years ago
14

A coin contains 9 99 grams of nickel and 1 6 1616 grams of copper, for a total weight of 2 5 2525 grams. What percentage of the

metal in the coin is copper?
Mathematics
2 answers:
klasskru [66]4 years ago
5 0

Weight of copper in coin, divided by total weight of coin..

Multiplied by hundred in the numerator..

Serjik [45]4 years ago
4 0

9 grams nickel + 16 grams copper = 25 gram coin

\frac{copper}{total} = \frac{16}{25}

\frac{16}{25}*(\frac{4}{4}) = \frac{64}{100} = 64%

Answer: 64%

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