SOLUTION: A jar contains nickel and quarters. The number of nickels is 4 less than twice the number of quarters. If the sum is $2.25, find how many quarters are in the jar.
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Question 1065136: A jar contains nickel and quarters. The number of nickels is 4 less than twice the number of quarters. If the sum is $2.25, find how many quarters are in the jar. Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! n = 2q-4
0.05n+0.25q = 2.25
0.05(2q-4)+0.25q = 2.25
0.10q-0.20+0.25q = 2.25
0.35q = 2.45
q = 7 there are 7 quarters in the jar.
