Posted by Joe on Tuesday, February 1, 2011 at 10:15pm.
A change purse contains an equal number of pennies, nickels, and dimes. The total value of the coins is 112 cents. How many coins of each type does the purse contain?

Math  PsyDAG, Wednesday, February 2, 2011 at 10:18am
Let x = number of each coin
x + 5x + 10x = 112
Solve for x.