Answer:
2 7/27 hours, about 2 hours 15 minutes, 33 seconds
Explanation:
You want to know how long it takes for Rich and Michelle to meet if they start 305 miles apart and are driving toward each other. Rich is driving 70 mph, and Michelle is driving 65 mph.
Closing speed
The speed at which they are moving toward each other is ...
70 mph + 65 mph = 135 mph
Meeting time
That means they will reduce their separation distance to zero after ...
time = distance / speed
time = (305 mi)/(135 mi/h) = 2 7/27 h
It will take 2 7/27 hours, about 2.26 hours, for Rich and Michelle to meet.
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