Let x be the number of pennies which is also equal to the number of dimes. By this representation, the number of quarters is equal 46 - 2x. The total amount is $4.87 or 487 cents. The equation that best represent the given is, x + 10x + 25(46 - 2x) = 487 The value of x from the equation is 17. Therefore, there are 17 of both pennies and dimes and 12 quarters.
