A parking meter contains quarters and nickels worth $10.75. There are 55coins in all. Find how many of each there are

A parking meter contains quarters and nickels worth $10.75. There are 55coins in all. Find how many of each there are
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1 Answer

q=quarters value 25q cents; (55-q) nickels value 5(55-q) cents.

Total value 25q+5(55-q)=1075 cents.

25q+275-5q=1075.

20q=800, q=40, 55-q=15.

40 quarters and 15 nickels.
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