SOLUTION: ​Gaby's piggy bank contains quarters and nickels worth ​$5.45. If she has 45 coins in​ all, how many of each does she​ have?
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Question 1040751: Gaby's piggy bank contains quarters and nickels worth $5.45. If she has 45 coins in all, how many of each does she have?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Gaby's piggy bank contains quarters and nickels worth $5.45. If she has 45 coins in all, how many of each does she have?
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q + n = 45 coins
25q + 5n = 545 cents
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Modify::
q + n = 45
5q + n = 109
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Subtract and solve for "q"::
4q = 64
q = 16 (# of quarters)
n = 45-16 = 29 (# of nickels)
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Cheers,
Stan H.
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