A collection of nickels dimes and quarters consists of 50 coins with a total of $5.50. If there are two times as many dimes as quarters find the number of each type of coins?

Answer 1

quarters --- x
dimes ----- 2x
nickels --- 50 - 3x

equation based on "value" of those coins:

25x + 10(2x) + 5(50-3x) = 550
25x + 20x + 250 - 15x = 550
30x = 300
x=10

there are 10 quarters, 20 dimes and 20 nickels

Answer 2

post it.