Posted by **Aleah** on Wednesday, July 15, 2009 at 6:41pm.

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

- math -
**Ms. Sue**, Wednesday, July 15, 2009 at 6:49pm
Your turn. See my last post.

- math -
**Aleah**, Wednesday, July 15, 2009 at 7:11pm
x/3=14/1

1x/1=42/1

x=42

- math -
**Ms. Sue**, Wednesday, July 15, 2009 at 7:21pm
Oops -- your answer doesn't make sense. There's much LESS nickel than copper in the coin.

Please try again.

- math -
**Aleah**, Wednesday, July 15, 2009 at 7:45pm
I really don't understand how to work this problem.

- math -
**Ms. Sue**, Wednesday, July 15, 2009 at 7:52pm
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?

- math -
**Aleah**, Wednesday, July 15, 2009 at 7:57pm
I got 4.6.

- math -
**Ms. Sue**, Wednesday, July 15, 2009 at 9:03pm
Yes -- except you should round 4.66666 to 4.7 pounds.

## Answer This Question

## Related Questions

- Math - A U.S. nickel contains 3 ounces of copper for every ounce of nickel. How ...
- Math - A U.S. nickel contains 3 ounces of copper for every ounce of nickel. How ...
- Math - A US nickel contains 3 ounces of copper for every ounce of nickel. How ...
- math - a.u.s nickel contains 3.9g of copper and 1.2g of nickel. how many ...
- chemistry - A nickel has a mass of 5.000 grams and is composed of 25% nickel and...
- Math - If a nickel contains 3.9 gram of copper and 1.2 gram of nickel How many ...
- 7th grade - If a nickel contains 3.0 gram of copper and 1.2 gram of nickel How ...
- chemistry - A coin dealer offers to sell you an ancient nickel coin that is 3.1 ...
- Chemistry - Suppose a galvanic cell contains one nickel electrode and one copper...
- Chemistry - Solution Stoichiometry - A piece of nickel is placed in a beaker ...

More Related Questions