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

Question

4 years ago

14

metal in the coin is copper?

2 answers:

klasskru [66] · Answer 1 · 2022-01-10T11:26:38+03:00

5 0

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

Multiplied by hundred in the numerator..

Serjik [45] · Answer 2 · 2022-01-10T12:36:08+03:00

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%