SOLUTION: Toni has a collection of dimes and quarters with a face value of $25.30. She has 27 more quarters than she has dimes. How many of each coin does she have?
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Question 410530: Toni has a collection of dimes and quarters with a face value of $25.30. She has 27 more quarters than she has dimes. How many of each coin does she have? Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! Toni has a collection of dimes and quarters with a face value of $25.30.
She has 27 more quarters than she has dimes.
How many of each coin does she have?
:
Let d = no. of dimes
Let q = no. of quarters
:
Write an equation for each statement:
:
"a collection of dimes and quarters with a face value of $25.30."
.10d + .25q = 25.30
:
" has 27 more quarters than she has dimes."
q = d + 27
:
Replace q with (d+27) in the 1st equation:
.10d + .25(d+27) = 25.30
.10d + .25d + 6.75 = 25.30
.35d = 25.30 - 6.75
.35d = 18.55
d =
d = 53 dimes
:
Now you can find the number of quarters I'm sure
Check your values in the original 1st equation
