SOLUTION: The total value of the dimes and quarters in a coin bank is $3.70.if the dimes where quarters and the quarters were dimes, the total value of the coins would be $2.95. Find the num
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Question 904024: The total value of the dimes and quarters in a coin bank is $3.70.if the dimes where quarters and the quarters were dimes, the total value of the coins would be $2.95. Find the number of quarters in the coin bank. Answer by richwmiller(17219) (Show Source):
You can put this solution on YOUR website! 10d+25q=370
25d+10q=295
50d+125q=370*5
50d+20q=2950/5
subtract
105q=370*5-2950/5
105q=1850-590
105q=1260
q=1260/105
q=12
25d+10q=295
25d+120=295
25d=175
d=7
