Question 814682
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Hi,
28 quarters, nickels, and dimes, $3.15 total  0r 315¢
and three times as many dimes as quarters.
Let x represent the number of quarters and 3x the number of dimes
 25x + 10(3x) + 5(28-4x) = 315¢
   35x = 175
     x = 5
 5 Quarters, 15 Dimes and 8 Nickels
CHECKING our Answer***
 125¢ + 150¢ +40¢ = 315¢  or $3.15