Question

Alicia Whitman rented a station wagon for her vacation. The wagon rented f $35.40 per day plus 21c per mile. She used the wagon for 7 days. She paid $54.20 for gasoline during her 620-mile drive. What is her cost per mile to the nearest cent?

Answer 1

Answer:

The cost per mile is $\ 0.70$

Step-by-step explanation:

Let

C-----> the total cost

R----> the cost of the rented wagon

G----> the cost of gasoline

we know that

The total cost is equal to

$C=R+G$

step 1

Find the cost of the rented wagon

$R=35.40(7)+0.21(620)=\ 378$

step 2

Find the total cost

$C=R+G$

we have

$R=\ 378$

$G=\ 54.20$

substitute

$C=\ 378+\ 54.20=\ 432.20$

step 3

Find the cost per mile

Divide the total cost by the number of miles

$\ 432.20/620=\ 0.70$