Question 808963: Aura has 8 coins worth $1.80. If the coins are all quarters and nickels, how many quarters and nickels does she have?
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! q + n = 8
q = 8 - n
25q + 5n = 180
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25(8 - n) + 5n = 180
200 - 25n + 5n = 180
20 = 20n
Answer:
n = 1
q = 7
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