heather has $2.50 in nickels, dimes, and quarters. she has 3 times as many nickels as dimes and four times as many quaters as dimes

Answer 1

number of dimes -- x
number of nickels -- 3x
number of quarters -- 4x

10x + 5(3x) + 25(4x) = 250

solve for x , then sub in my definitions

Answer 2

Nickels:6
Dimes:2
Quarters:8