SOLUTION: THe coins Phil has are worth $4.15. If they are just quarters and dimes, how many of each coin does he have?

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Question 169851: THe coins Phil has are worth $4.15. If they are just quarters and dimes, how many of each coin does he have?
Found 3 solutions by Alan3354, checkley77, Edwin McCravy:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
THe coins Phil has are worth $4.15. If they are just quarters and dimes, how many of each coin does he have?
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He might have 1 quarter and 39 dimes. Or 3 quarters and 34 dimes. Or 15 quarters and 4 dimes. There's no way to know.
Answer by checkley77(12844)   (Show Source): You can put this solution on YOUR website!
4.15 in quarters & dimes
Q----D--=4.15
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15---4--=4.15
13---9--=4.15
11---14-=4.15
9----19-=4.15
7----24-=4.15
5----29-=4.15
3----34-=4.15
1----39-=4.15
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Answer by Edwin McCravy(20054)   (Show Source): You can put this solution on YOUR website!
THe coins Phil has are worth $4.15. If they are just quarters and dimes, how many of each coin does he have?

There are 8 possible solutions:

19, 22, 25, 28, 31, 34, 37, or 40 coins:

  1 quarter makes $0.25 plus 39 dimes, $3.90 makes $4.15 with 40 coins.
 3 quarters makes $0.75 plus 34 dimes, $3.40 makes $4.15 with 37 coins.
 5 quarters makes $1.25 plus 29 dimes, $2.90 makes $4.15 with 34 coins.
 7 quarters makes $1.75 plus 24 dimes, $2.40 makes $4.15 with 31 coins.
 9 quarters makes $2.25 plus 19 dimes, $1.90 makes $4.15 with 28 coins.
11 quarters makes $2.75 plus 14 dimes, $1.40 makes $4.15 with 25 coins.
13 quarters makes $3.25 plus 9 dimes,   $.90 makes $4.15 with 22 coins.
15 quarters makes $3.75 plus 4 dimes,   $.40 makes $4.15 with 19 coins.

Edwin
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