Math - mecca, Wednesday, October 24, 2007 at 9:20pm

Question

Lauren has collected 150 nickels and dimes. She has 70 more nickels than dimes. How many nickels and how many dimes

Answer 1

Let x = # of dimes

x + (x + 70) = 150
2x + 70 = 150
2x = 80
x = 40 dimes

40 + 70 = 110 nickels

40 dimes
110 nickels