A coin contains 1.25, point grams of nickel and 3.75, point, grams of copper, for a total weight of 5 grams. What percentage of the metal in the coin is copper?

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asked Jul 9, 2017 81.1k views

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A coin contains 1.25, point grams of nickel and 3.75, point, grams of copper, for a total weight of 5 grams. What percentage of the metal in the coin is copper?

Mathematics
high-school

Yelena asked

by Yelena

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3.75 grams of copper / 5 total grams =

.75 = 75%

Kiyoto Tamura answered Jul 14, 2017

by Kiyoto Tamura

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