Best rentals charges a daily fee plus a mileage fee for renting its cars. barney was charged $81 for 3 days and 300 miles, while mary was charged $145 for 5 days and 600 miles. what does best rental charge per day and per mile?
For this case, the first thing we must do is define variables: x: rental charge per day y: rental charge per mile We write the system of equations: 3x + 300y = 81 5x + 600y = 145 Solving the system we have: x = 17 y = 1/10 Answer: rental charge per day = 17 $ rental charge per mile = 1/10 $
