Question

Sam filled a jar with 150 coins worth $11.75. how many dimes and nickles are there?

Answer 1

65 nickels

85 dimes

Explanation:

d+n = 150

.10d + .05n = 11.75

substitute

.10(150-n) + .05n == 11.75

15 - .05n = 11.75

-.05n = - 3.25

n = 65

d + 65 = 150

d = 85