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:

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

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?

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

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?