The total distance travelled is 307.5 miles.
What is the distance covered?
We know that the distance covered can be obtained from the formula from speed since the motion all took place in the same direction.
Speed = distance/time
distance = speed * time
In the first case;
Distance = 35 mph * 2.5 hours = 87.5 miles
In the second case;
Distance = 55 mph * 4.0 hours = 220 miles
Total distance = 87.5 miles + 220 miles = 307.5 miles
Hence the total distance travelled is 307.5 miles.
Learn more about total distance:https://brainly.com/question/20330990
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