Q:

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?

Accepted Solution

A:
Answer:The cost per mile is [tex]\$0.70[/tex]Step-by-step explanation:LetC-----> the total cost R----> the cost of the rented wagon G----> the cost of gasolinewe know thatThe total cost is equal to[tex]C=R+G[/tex]step 1Find the cost of the rented wagon [tex]R=35.40(7)+0.21(620)=\$378[/tex]step 2Find the total cost[tex]C=R+G[/tex]we have[tex]R=\$378[/tex][tex]G=\$54.20[/tex]substitute[tex]C=\$378+\$54.20=\$432.20[/tex]step 3Find the cost per mileDivide the total cost by the number of miles[tex]\$432.20/620=\$0.70[/tex]