SOLUTION: Thomas has a collection of 25 coins; some are dimes and some are quarters. If the total value of all the coins is $5.05, how many of each kind of coin are there?
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Question 1055853: Thomas has a collection of 25 coins; some are dimes and some are quarters. If the total value of all the coins is $5.05, how many of each kind of coin are there? Answer by ikleyn(52803) (Show Source):
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Thomas has a collection of 25 coins; some are dimes and some are quarters. If the total value of all the coins is $5.05,
how many of each kind of coin are there?
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10d + 25*(25-d) = 505.
Solve for d, which is an unknown number of dimes.
