hey please help with this question?

Two cars leave from the same parking lot, one driving north and the other driving south. The first car is traveling at a speed of 47 mph and the second is traveling at a speed of 41 mph. How long will it be before they are 308 miles apart?

Question

hey please help with this question?

Two cars leave from the same parking lot, one driving north and the other driving south. The first car is traveling at a speed of 47 mph and the second is traveling at a speed of 41 mph. How long will it be before they are 308 miles apart?

anonymous · Answer

The distance between them is increasing at 47 +41 = 88 miles per hour...right?

anonymous · Answer

yes

anonymous · Answer

Time = Distance / Speed 
You know distance, you know speed.

anonymous · Answer

308/88 = 3.5 right?

anonymous · Answer

3.5 hours. Don't forget units. Correct