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A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 25 grams. What percentage of the metal in the coin is copper?

A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 25 grams. What percentage of the metal in the coin is copper?
asked 213k views
2 votes
A coin contains 9 grams of nickel and 16 grams of copper, for a total weight of 25 grams.

What percentage of the metal in the coin is copper?

asked
User StephenD
by
8.2k points

2 Answers

5 votes

Answer:

64%

Explanation:

100×16=1600

=1600÷25

=64

=64 + %

=64%

answered
User Maxwell Segal
by
8.4k points
0 votes

Answer:

64%

Explanation:

answered
User Yogie
by
9.0k points
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