# SOLUTION: Kirsten has 64 coins in her piggy bank.She has \$9.25 in dimes and quarters. How many dimes and how many quarters does she have? I am doing Singapore math. I am in 5th grade. Pl

Algebra ->  Algebra  -> Customizable Word Problem Solvers  -> Coins -> SOLUTION: Kirsten has 64 coins in her piggy bank.She has \$9.25 in dimes and quarters. How many dimes and how many quarters does she have? I am doing Singapore math. I am in 5th grade. Pl      Log On

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 Click here to see ALL problems on Word Problems With Coins Question 530845: Kirsten has 64 coins in her piggy bank.She has \$9.25 in dimes and quarters. How many dimes and how many quarters does she have? I am doing Singapore math. I am in 5th grade. Please help!!Answer by oberobic(2304)   (Show Source): You can put this solution on YOUR website!With coin problems, you have to keep track of the number of coins and their values. d = number of dimes 10d = value of the dimes in cents q = number of quarters 25q = value of the quarters in cents . 10d + 25q = 925 cents (to keep all the amounts in the same units of measure) . d + q = 64 so d = 64 - q . substitute . 10(64-q) + 25q = 925 640 -10q + 25q = 925 15q = 285 q = 19 . d = 64-19 = 45 . Check the value to be sure this is the answer. 10d = 10(45) = 450 25q = 25(19) = 475 450 + 475 = 925 Correct. . Answer: Kirsten as 19 quarters and 45 dimes. . Done.