Question

A U.S. nickel contains 3 ounces of copper for every ounce of nickel. How much nickel is required for 14 pounds of copper?

Answer 1

Your turn. See my last post.

Answer 2

x/3=14/1
1x/1=42/1
x=42

Answer 3

Oops -- your answer doesn't make sense. There's much LESS nickel than copper in the coin.

Please try again.

Answer 4

I really don't understand how to work this problem.

Answer 5

You had the right idea -- but you didn't set up the correct proportion.

3 is to 1 as 14 is to x.

3/1 = 14/x

Now -- cross multiply.

What do you get?

Answer 6

I got 4.6.

Answer 7

Yes -- except you should round 4.66666 to 4.7 pounds.