Please explain to me how to get the answer.

Mathematics
Tutor: None Selected Time limit: 1 Day

A rental car agency charges $26.00 per day and 25 cents per mile.

(a) Calculate the rental charge if you rent a car for 4 days and drive 300 miles. (Round your answer to the nearest cent.)
 

(b) Use a formula to express the cost of renting a car as a function of the number of days you keep it and the number of miles you drive. (Let d be the number of days you rent the car, m the number of miles you drive the car, and C the cost in dollars of renting the car.)
C(dm) = 
 

Sep 10th, 2015

Thank you for the opportunity to help you with your question!

(a) Total rental charge= rent due to rent duration(in days)+rent due to miles covered

                                   =$26 x 4+$(1/4) x 300=$179

           where charges per day is $26.00  and charges  per mile is 25 cent or $1/4 .

 (b) Formula which can be used to express the cost of renting a car is calculated as follows:

As the rate is $26 per day and 25 cents or $(1/4) per mile, the total cost of renting a car for d number of days and travelling m number of miles is calculated as:

C(d, m )=$26.00 x d+ $(1/4)x m

                  =26 d+0.25 m 

                  =1/4(104 d+m )

Please let me know if you need any clarification. I'm always happy to answer your questions.
Sep 10th, 2015

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