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 co

Question

enot [183]

2 years ago

5

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 co

in is copper?

Mathematics

2 answers:

I am Lyosha [343] · Answer 1 · 2022-05-21T01:55:42+03:00

Answer:

<h2>The coin has 64% of copper</h2>

Step-by-step explanation:

To find the percentage of copper that the coin has, we just have to divide the grams of the copper with the total grams of the coin, that will gives us the percentage representation of the copper

$\frac{16}{25}=0.64 \ (or \ 64\%)$

Therefore, the coin has 64% of copper and 35% of nickel.

Leya [2.2K] · Answer 2 · 2022-05-20T23:44:10+03:00

Leya [2.2K]2 years ago

5 0

X for coin Y for copper
9X+16Y=25