SOLUTION: A coin purse contains dimes and quarters. The number of dimes is 5 less than twice the number of quarters. the total value is $4.00. Find the number of dimes and quarters.

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Question 1081667: A coin purse contains dimes and quarters. The number of dimes is 5 less than twice the number of quarters. the total value is $4.00. Find the number of dimes and quarters.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
in cents, q for the number of quarters,
10%282q-5%29%2B25q=400

2%282q-5%29%2B5q=80
9q=80%2B10
9q=90
highlight%28q=10%29-------ten quarters

highlight%28d=15%29-------fifteen dimes