SOLUTION: sue took her collection of nickles and quarters to deposit in the bank. she has seven fewer nickles than quarters. her total deposit was $86.05. how many nickles did she deposit

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Question 287972: sue took her collection of nickles and quarters to deposit in the bank. she has seven fewer nickles than quarters. her total deposit was $86.05. how many nickles did she deposit?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
What do we know?
There are nickels and quarters.
.25q+.05n=86.05
What else do we know?
'seven fewer nickels than quarters"
How do we say that in math?
Fewer means subtract.
Subtract what?
There are fewer nickels and more quarters
n=q-7
.25q+.05n=86.05
q=288,n=281
{72.,14.05}
281/20=14.05
288/4=72.00