SOLUTION: A bank contains 36 nickels, dimes, and quarters. There are 4 more dimes than quarters and twice as many nickels as quarters. How many of each coin are in the bank?

Question 55407This question is from textbook
: A bank contains 36 nickels, dimes, and quarters. There are 4 more dimes than quarters and twice as many nickels as quarters. How many of each coin are in the bank? This question is from textbook

Answer by Cintchr(481) (Show Source): You can put this solution on YOUR website!
n + d + q = 36
d = q + 4
n = 2q
Substitute the 2nd and third equations into the 1st so that you have ONLY the q to solve for.

now plug 8 into the 3rd equation

now plug n and q into the 1st equation

d = 12
n = 16
q = 8
total = 36

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