Question

Brass is an alloy composed of 55% copper and 45% zinc by weight. You have 25 ounces of copper. How many ounces of zinc do you need to make brass

Answer 1

To make brass with 25 ounces of copper, you will need approximately 20.45 ounces of zinc.

Step-by-step explanation:

Brass is an alloy composed of 55% copper and 45% zinc by weight. To find out how many ounces of zinc you need to make brass with 25 ounces of copper, you can set up a ratio.

Since the ratio of copper to zinc is 55:45, you can set up the equation:

55% copper = 25 ounces

45% zinc = x ounces

Using cross multiplication, you can solve for x:

x = (45/55) * 25

x ≈ 20.45 ounces

So, you will need approximately 20.45 ounces of zinc to make brass with 25 ounces of copper.

Answer 2

20.45 ounces of zinc are needed to make brass.

Step-by-step explanation:

Im pretty sure im right