Solve the Problem $d$ , in Miles by 5 Less Than His Expected Average

Multiple Choice

Solve the problem.
-To estimate his travel time, Joe divides the distance, $d$ , in miles by 5 less than his expected average speed, in miles per hour. If Joe plans on driving 75 miles per hour and he has to travel 310 miles, how long does he expect to be traveling? Round to the nearest tenth when necessary.

A) $4.1 \mathrm{hr}$
B) $4.4 \mathrm{hr}$
C) $0.2 \mathrm{hr}$
D) $3.9 \mathrm{hr}$