Question

A car rental company charges a flat daily fee plus a fixed cost per mile driven.one day Becky drives 50 miles and is charged 145.The next day she drives 90 miles and is charged 193.What is the cost per mile?

Answer 1

$1.2

Explanation:

Let the cost per mile be x, and daily fee f.

Then we have equations:

• 50x + f = 145
• 90x + f = 193

Subtract the first equation from the second one:

• 90x - 50x + f - f = 193 -145
• 40x = 48
• x= 48/40
• x= 1.2

Answer: the cost per mile is $1.2