SOLUTION: A coin bank contains twice as many nickels as quarters. four times as many pennies as quarters and no dimes. If the bank contains $7.60 how many coins does it contain?
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Question 987143: A coin bank contains twice as many nickels as quarters. four times as many pennies as quarters and no dimes. If the bank contains $7.60 how many coins does it contain?
Answer by macston(5194) (Show Source): You can put this solution on YOUR website!
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Q=number of quarters; N=number of nickels=2Q; P=number of pennies=4Q
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$0.25Q+$0.05N+$0.01P=$7.60
$0.25Q+$0.05(2Q)+$0.01(4Q)=$7.60
$0.25Q+$0.10Q+$0.04Q=$7.60
$0.39Q=$7.60
For every quarter, there are two nickels and 4 pennies, so the total must be a multiple of 39 cents. $7.60 is not evenly divisible by 39 cents, so there is no solution for this problem.
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