SOLUTION: Shannon had three times as many quarters as nickels. She had $2.40 in all. How many quarters did she have?

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Question 264424: Shannon had three times as many quarters as nickels. She had $2.40 in all. How many quarters did she have?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Shannon had three times as many quarters as nickels. She had $2.40 in all. How many quarters did she have?
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Equations:
q = 3n
5n + 25q = 240
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Substitute for q and solve for n:
5n + 25(3n) = 240
5n + 75n = 240
80n = 240
n = 3 (number of nickels)
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Since q = 3n, q = 9 (number of quarters)
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Cheers,
Stan H.