SOLUTION: A man has 18 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 255 cents, how many dimes and how many quarters does he have?

Question 1130089: A man has 18 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 255 cents, how many dimes and how many quarters does he have?
Found 2 solutions by Boreal, josgarithmetic:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
x dimes, 18-x quarters
.10x+.25(18-x)=2.55
-.15x+4.50=2.55
-.15x=-1.95
x=13 dimes or $1.30
18-x=5 quarters or $1.25

Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
x quarters
18-x dimes

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