Solve the problem.
-Michael's bank contains only nickels, dimes, and quarters. There are 65 coins in all, valued at $5.35. The number of nickels is 7 short of being three times the sum of the number of dimes and quarters together. How many
Dimes are in the bank?
A) 8
B) 47
C) 15
D) 10

Question

Quizplus · Accepted Answer

Let n be the number of nickels, d be the number of dimes, and q be the number of quarters. We have the following equations:  1. n + d + q = 65  2. 0.05n + 0.10d + 0.25q = 5.35  3. n = 3(d + q) - 7  Solving these equations, we find that d = 10.

Solve the Problem. -Michael's Bank Contains Only Nickels, Dimes, and Quarters. There Are