Question 259620: Will has 40 coins( nickels, dimes, and quarters) worth $4.05. He has more nickels than dimes. How many quarters does he have? Answer by Edwin McCravy(20059) (Show Source):
Solving for n and d in terms of q:
Since
So from the above, we can calculate 4 cases:
7 quarters, 20 nicklea, and 13 dimes.
8 quarters, 23 nicklea, and 9 dimes.
9 quarters, 26 nicklea, and 5 dimes.
10 quarters, 29 nicklea, and 1 dimes.
Edwin
