SOLUTION: If Amy has 15 coins totaling $2.70, and the coins are quarters and dimes, How many of each coin does she have?

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Question 881249: If Amy has 15 coins totaling $2.70, and the coins are quarters and dimes, How many of each coin does she have?
Answer by JulietG(1812) About Me  (Show Source):
You can put this solution on YOUR website!
If all the coins were quarters, she would have 15 * .25, or $3.75
The difference between $2.70 and $3.75 is $1.05
The difference between quarters and dimes is .15
1.05/.15 = 7
.
Dimes Quarters, Total
1/.10, 14/3.5 = 3.6
2/.20, 13/3.25 = 3.45
3/.30, 12/3.00 = 3.30
4/.40, 11/2.75 = 3.15
5/.50, 10/2.50 = 3.00
6/.60, 9/2.25 = 2.85
7/.70, 8/2.00 = 2.70