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The cost of driving on a trip is the amount of money you need to pay for gas and rental cars to go on a trip.

The equation for finding the cost of driving on a trip is:

equation.gif (1739 bytes)Driving on a Trip
COD = COG + COR

where

COD = Cost of Driving

COG = Cost of Gas

COG = # of Gallons used ´ Cost of Gasoline per gallon

COG = (Distance/MPG) ´ Cost of Gasoline per gallon

COR = Cost of Rental Car.

 

Model

Limited $/Day

Plus Cents/Mile

Unlimited $/Day

Gas Used MPG

Avg. fuel cost per mile*  ($)

Sub-Com

23

21

41

36

0.04

Compact

25

22

45

30

0.04

Midsize

28

23

49

22

0.06

Van

35

28

68

17

0.07

Luxury

38

30

73

14

0.09

*Based on an average cost of $1.25 a gallon


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Eddie and his parents are planning to go on a vacation trip driving from Houston to Orlando. They want to rent a midsize car at $250 per week. They’re going for 1.5 weeks. The roundtrip driving distance is 2,268 miles. The average gas mileage is 20 mpg. Unleaded gas costs $1.359 per gallon. What is their cost of driving?

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COD = COG + COR

COD = (2268/20)(1.359) + (250)(1.5)

COD = 154.1106 + 375

COD = 529.1106

COD = 529.11

The cost of driving on this trip is about $529

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Tom a sales person for IBM went from Los Angeles to Las Vegas for a trade show.  He got reimbursed 35 cents per mile   He rented a Toyota, a mid-size car, with unlimited mileage for two days and drove 600 miles.  Did the company overpay him?

Estimate the answer:

ans_a.gif (231 bytes) Yes.   He should have gotten paid less than 35 cent per mile
ans_b.gif (220 bytes) No.   IBM should pay him more than 35 cent per mile.

 
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