Asked by Aleah

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

Answers

Answered by Ms. Sue
Your turn. See my last post.
Answered by Aleah
x/3=14/1
1x/1=42/1
x=42
Answered by Ms. Sue
Oops -- your answer doesn't make sense. There's much LESS nickel than copper in the coin.

Please try again.
Answered by Aleah
I really don't understand how to work this problem.
Answered by Ms. Sue
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?
Answered by Aleah
I got 4.6.
Answered by Ms. Sue
Yes -- except you should round 4.66666 to 4.7 pounds.

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