Answer:
[tex]40+15x= 115[/tex]
Step-by-step explanation:
A truck is rented at $40 per day plus a charge per mile of use. The truck traveled 15 miles in one day, and the total charge was $115.
Let x be the charge per mile of use (dollar per mile)
The truck traveled 15 miles in one day. the charge for 15 miles is 15x
A truck is rented at $40 per day
So charge is [tex]15x+ 40[/tex]
total charge was 115
So the equation becomes
[tex]40+15x= 115[/tex]
