posted by Aleah on .
A U.S. nickel contains 3 ounces of copper for every ounce of nickel. How much nickel is required for 14 pounds of copper?
Your turn. See my last post.
Oops -- your answer doesn't make sense. There's much LESS nickel than copper in the coin.
Please try again.
I really don't understand how to work this problem.
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?
I got 4.6.
Yes -- except you should round 4.66666 to 4.7 pounds.