Calculate the amount of Zinc needed for an alloy
Question:
If an alloy is composed of 75% copper and 25% zinc by weight, and you have 12 ounces of copper, how many ounces of zinc do you need to make the alloy?
Final answer:
You would need 16 ounces of zinc to make the alloy.
To calculate the amount of zinc needed to make the alloy, we can set up a proportion using the given percentages and the weight of copper.
Let's assume the weight of zinc needed is x ounces.
We can set up the proportion:
75/100 = 12/x
Cross-multiplying, we get:
75x = 1200
Dividing both sides by 75, we find:
x = 16
Therefore, you would need 16 ounces of zinc to make the alloy.