Question

A car rental agency charges $29 per day to rent a car and $13.95 per day for a global positioning system (GPS). Customers are charged for their full tank of gas at $3.60 per gallon. A car has a 19 gallon tank and a GPS.

a) Write a function rule for the total bill b as a function of the days d the car is rented. b) What is the bill for a 10 day rental

Answer 1

b= total bill
d= number of rental days
y= number of gallons of gas

rental $= $29/day
GPS= $13.95/day
gas= $3.60/gallon (19 gallon tank)

PART A
total bill= (rental price times # days)
+ (GPS price * # days) + (gas price per gallon times # of gallons)

b= ($29 * d) + ($13.95 * d) + ($3.60 * y)
b= 29d + 13.95d + (3.60 * 19 gallons)

b= $42.95d + $68.40

PART B
b= $42.95d + $68.40
plug in 10 for number of days rented
b= $42.95(10) + $68.40
b= $429.50 + $68.40
b= $497.90 total price for 10 days


ANSWER: A) b= $42.95d + $68.40; B) b= $497.90 total for 10 day rental

Hope this helps! :)