SOLUTION: A piggy bank contains only quarters and nickels, and there is a total of 60 coins. The total value of the coins in the bank is 7.40. How many quarters are in the piggy bank?

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Question 883309: A piggy bank contains only quarters and nickels, and there is a total of 60 coins. The total value of the coins in the bank is 7.40. How many quarters
are in the piggy bank?
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
1.Q%2BN=60
2.25Q%2B5N=740
Multiply eq. 1 by 5 and subtract from eq. 2,
25Q%2B5N-5Q-5N=740-300
20Q=440
Q=22
Then,
N=60-22=38