Sunday

September 21, 2014

September 21, 2014

Posted by **melissa** on Saturday, January 8, 2011 at 6:48pm.

how many kilograms of copper must be combined with 500 kg of nickel to make nickel coins?

- math -
**Bosnian**, Saturday, January 8, 2011 at 7:19pmcopper/nickel=3.9/1.2=3.25

500*3.25=1625 kg of copper

- math -
**Bosnian**, Saturday, January 8, 2011 at 10:48pmYou also can write fraction:

3.9/1.2=x/500

1.2*x=3.9*500

1.2*x=1950 Divide with 1.2

x=1950/1.2

x=1625

- math -
**Anonymous**, Friday, September 12, 2014 at 3:28pm1,625

**Answer this Question**

**Related Questions**

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 nickel has a mass of 5.000 grams and is composed of 25% nickel and...

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 ounces of copper for every ounce of nickel. How ...

riddle - What two coins will make up 30 cents but you cannot use a nickel ? What...

Chemistry - Solution Stoichiometry - A piece of nickel is placed in a beaker ...

chemistry - If the average quarter weighs 5.67grams, how many atoms of nickel ...