Miss lee has 24 coins consistin of nickels and quarters. The total value of the coins is $3.00. How many each kind does Miss Lee have?

Question

Must be solved by a system solve.

Answer 1

Let x = the number of nickels Miss Lee has

Let y = the number of quarters Miss Lee has

x + y = 24     y = 24 - x

.05x + .25y = 3        Multiply both sides by 100.

5x + 25y = 300

5x + 25(24 - x) = 300

5x + 600 - 25x = 300

-20x = -300

x = 15 nickels

y = 24 - 15 = 9 quarters