Answer:
10 PM
Step-by-step explanation:
The combined speed of the two buses is ...
40 mph + 65 mph = 105 mi/h
The relationship between distance, speed, and time can be written ...
time = distance/speed
so the elapsed time until the buses cover the distance is ...
time = (1260 mi)/(105 mi/h) = 12 h
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12 hours after 10 AM is 10 PM.
The buses will be 1260 miles apart at 10 PM.
