SOLUTION: Gaby's piggy bank contains nickels and quarters worth $3.60. If she has 28 coins in all, how many of each does she have?

Question 569084: Gaby's piggy bank contains nickels and quarters worth $3.60. If she has 28 coins in all, how many of each does she have?
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let = number of nickels
Let = number of quarters
given:
(1)
(2) ( in cents )
-------------------
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)

and, since
(1)
(1)
(1)
She has 17 nickels and 11 quarters
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