SOLUTION: a coin bank contains only nickels and dimes. The total value of the coins in the bank is $4.75. IF the nickels were dimes and the dimes were nickels, the total value of the coins w
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Question 165228: a coin bank contains only nickels and dimes. The total value of the coins in the bank is $4.75. IF the nickels were dimes and the dimes were nickels, the total value of the coins would be $3.50. Find the number of nickels in the bank??? Answer by edjones(8007) (Show Source):
You can put this solution on YOUR website! Let n be the number of nickels and d dimes.
A) .05n+.10d=4.75
B) .10n+.05d=3.50
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A) .05n+.10d=4.75
B)-.20n-.10d=-7.00 multiply each side by -2
---------------------add
==>-.15n=-2.25
n=15
d=40
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Ed
