SOLUTION: in your pocket you have some nickels, dimes, and quarters. there are 20 coins altogether and exactly twice as many dimes as nickels. the total value of the coins is three dollars.

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Question 806249: in your pocket you have some nickels, dimes, and quarters. there are 20 coins altogether and exactly twice as many dimes as nickels. the total value of the coins is three dollars. find the number of coins of each type
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
n+d+q=20,
5n+10d+25q=300,
d=2n
d = 8, n = 4, q = 8