SOLUTION: In the fifth piggy bank there is exactly $12.55. The number of each type of coin is double the number of the next smaller coin. What are the coins.

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Question 1103499: In the fifth piggy bank there is exactly $12.55. The number of each type of coin is double the number of the next smaller coin. What are the coins.
Answer by josgarithmetic(39630) About Me  (Show Source):
You can put this solution on YOUR website!
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The number of each type of coin is double the number of the next smaller coin.
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What is the maximum size of coin in this money quantity?
p Pennies
n Nickels
n%2Fp=2

p%2B0.05n=12.55
-
p%2B0.05%2A2p=12.55
p%2B0.1p=12.55
1.1p=12.55
p=11.4090909
Since you know this cannot work, try the process again but INCLUDE DIMES and what what happens.

There may be a better method for this kind of problem.