SOLUTION: Tammy found 1.95 in quarters and dimes in the car. There were four times as many dimes as quarters. How many dimes and quarters did she find?

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Question 422706: Tammy found 1.95 in quarters and dimes in the car. There were four times as many dimes as quarters. How many dimes and quarters did she find?
Found 2 solutions by stanbon, shree840:
Answer by stanbon(57424) About Me  (Show Source):
You can put this solution on YOUR website!
Tammy found 1.95 in quarters and dimes in the car. There were four times as many dimes as quarters. How many dimes and quarters did she find?
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Equations:
Quantity: d = 4q
Value 10d + 25q = 195 cents
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Substitute and solve for "q":
10(4q) + 25q = 195
65q = 195
q = 3 (# of quarters)
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Solve for "d":
d = 4q
d = 4*3 = 12 (# of dimes)
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Cheers,
Stan H.
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Answer by shree840(260) About Me  (Show Source):
You can put this solution on YOUR website!
4x*.1+x*.25=1.95
.65x=1.95
x=1.95/.65=3
so dimes 3*4=12=$1.20
quarters 3 =$.75