SOLUTION: Soriano has 20 quarters and nickels. He has a total of three dollars. How many nickels does he have? My own work: Q(Quarters) 0.25 x 20-n = 5-0.25n N(Nickels) 0.10 x n = 0.10

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Question 614224: Soriano has 20 quarters and nickels. He has a total of three dollars. How many nickels does he have?
My own work:
Q(Quarters) 0.25 x 20-n = 5-0.25n
N(Nickels) 0.10 x n = 0.10n

Found 2 solutions by scott8148, lwsshak3:
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
q + n = 20 ___ q = 20 - n

25q + 5n = 300

substituting ___ 25(20 - n) + 5n = 300 ___ 500 - 25n + 5n = 300 ___ 200 = 20n

Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
Soriano has 20 quarters and nickels. He has a total of three dollars. How many nickels does he have?
**
let x=number of quarters
20-x=number of nickels
..
.25x+.05(20-x)=3.00
.25x+1-.05x=3.00
.20x=2.00
x=10
20-x=10
ans:
Soriano has 10 nickels