A coin contains 9 grams of nickel and 16 grams of Copper, for a total of 25 grams. What percentage of the metal is copper?
1 answer:
Answer:
The copper percentage = 64%
Step-by-step explanation:
Given
- Nickle quantity = 9 grams of nickel
- Copper quantity = 16 grams of nickel
- Total quantity = 25 grams
The percentage of copper metal can be determined using the formula
Copper percentage = [Copper quantity / Total quantity] × 100
= [16 / 25] × 100
= 0.64 × 100
= 64%
Therefore, the copper percentage = 64%
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