Question

on May 9th Alberto rented a car with a full tank of gas and 13,810 miles on the odometer. The rental Agency charged Alberto $104 and needed 14 gal of gas to fill up the tank. Assume that the pickup time was later in the day then the return time so that no late fees were applied. A) find the cars rate of gas consumption in miles per gallon to the nearest gallon? B) find the average cost in dollars per day? C) find the average rate of travel in miles per day?

Answer 1

A) the car rate (R) of gas consumption in miles per gallon will be the miles he grive divided by the gallons he spend so first we have to find the number of miles he drive so:

`14090-13810=280`

So the rate will be:

`R=(280)/(14)=20`

B) the average cost in dollars per day will be the total amount of money divided by the number of days he use the car so we know he uses the car for 3 days so the average will be:

`(104)/(3)=34.6\approx35`

And the averarage rate of travel in miles per days will be:

`R_2=(280)/(3)=93.3\approx93`