A change purse contains an equal number of pennies, nickels, and dimes. The total value of the coins is 288 cents. How many pennies does the purse contain?
Number of Pennies:
Let's assume that there are x pennies in the change purse.
The value of x nickels is 5x cents.
The value of x dimes is 10x cents.
Since there are an equal number of pennies, nickels, and dimes, the total value of the coins is 288 = x + 5x + 10x = 16x.
Therefore, x = 288/16 = 18.
So, the change purse contains 18 pennies.