SOLUTION: Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $108.00 for 3 days and 300 miles, while Mary was charged $193.00 for 5 days and 600 mi

Question 982752: Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $108.00 for 3 days and 300 miles, while Mary was charged $193.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile?

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Best Rentals charges a daily fee plus a mileage fee for renting its cars. Barney was charged $108.00 for 3 days and 300 miles, while Mary was charged $193.00 for 5 days and 600 miles. What does Best Rentals charge per day and per mile?
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Equations:
3d + 300m = 108
5d + 600m = 193
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Modify for elimination:
6d + 600m = 216
5d + 600m = 193
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Subtract and solve for "d"::
d = $23 (daily fee)
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Solve for "m":
3d + 300m = 108
69 + 300m = 108
300m = $39
m = 13 cents per mile
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Cheers,
Stan H.
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