SOLUTION: a collection of 39 nickles and dimes is worth $3.10. Find the number of nickels and dimes.
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Question 959466: a collection of 39 nickles and dimes is worth $3.10. Find the number of nickels and dimes.
Answer by CubeyThePenguin(3113) (Show Source): You can put this solution on YOUR website!
n = number of nickels
d = number of dimes
n + d = 39
5n + 10d = 310
(eliminate d)
10n + 10d = 390
-5n - 10d = -310
----------------------
5n = 80 ---> n = 16
---> 16 nickels, 23 dimes
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