Posted by Heather on Saturday, March 27, 2010 at 2:19pm.
If a nickel contains 3.9 gram of copper and 1.2 gram of nickel How many kilograms of copper must be combines with 500 kilograms of nickel to make nickel coins?

Math  drwls, Saturday, March 27, 2010 at 3:27pm
(3.9/1.2) x 500 = ____ kg
The ratio of copper mass to nickel mass remains the same for this coin.
The present nickel, like the cent and other coins, are "sandwiches". The outer surfaces contain more nickel than the inside; otherwise the coin would look bronze (like the Sacajawea dollar).
Answer This Question
Related Questions
 7th grade  If a nickel contains 3.0 gram of copper and 1.2 gram 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  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  Suppose a galvanic cell contains one nickel electrode and one copper...
 physics  One gram of nickel has 1.026 × 1022 atoms, and each nickel atom has 28...
More Related Questions