Answer :
Answer:
To find the percentage of copper in the alloy, we need to calculate the ratio of copper to the total parts of the alloy and then convert it to a percentage.
Given:
- Copper: 13 parts
- Zinc: 7 parts
- Nickel: 5 parts
Total parts in the alloy = 13 (copper) + 7 (zinc) + 5 (nickel) = 25 parts
Now, calculate the percentage of copper in the alloy:
\[ \text{Percentage of copper} = \left( \frac{\text{Parts of copper}}{\text{Total parts in the alloy}} \right) \times 100 \]
\[ \text{Percentage of copper} = \left( \frac{13}{25} \right) \times 100 \]
\[ \text{Percentage of copper} = 0.52 \times 100 \]
\[ \text{Percentage of copper} = 52\% \]
Therefore, the percentage of copper in the alloy is \( \boxed{52\%} \).
Answer:
52%
Step-by-step explanation:
Copper = 13 parts
zinc = 7 parts
nickel = 5 parts
Sum of parts = 25
Fraction for copper in alloy = [tex]\frac{13}{25}[/tex]
Percentage for copper in alloy = [tex]\frac{13}{25}*100= 52[/tex] %