SOLUTION: Kendra has $4.25 in dimes and quarters. If she has 3 times as many quarters as dimes, how many of each coin does she have?

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Question 733094: Kendra has $4.25 in dimes and quarters. If she has 3 times as many quarters as dimes, how many of each coin does she have?
Found 2 solutions by stanbon, lynnlo:
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Kendra has $4.25 in dimes and quarters. If she has 3 times as many quarters as dimes, how many of each coin does she have?
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Quantity Equation: q = 3d
Value Equation: 10d + 25q = 425 cents
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Substitute for "q" and solve for "d":
10d + 25(3d) = 425
85d = 425
d = 5 (# of dimes)
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Solve for "q":
q = 3d
q = 15 (# of quarters)
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Cheers,
Stan H.
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Answer by lynnlo(4176) About Me  (Show Source):
You can put this solution on YOUR website!
DIMES=20=$2.00
QUARTERS=======9======$2.25
TOTAL====$4.25