kdwilson79 kdwilson79

21-10-2017
Mathematics

contestada

A train travels 50 kilometers in 4 hours, and then 77 kilometers in 3 hours. What is its average speed?

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Erudite1 Erudite1

21-10-2017

The formula for finding speed is distance divided by time:
Speed = Total Distance / Total Time
D1 = 50
TI = 4
D2 = 77
T2 = 3
Average speed = D1 + D2 / TI + T2
Average Speed = 50 + 77/ 4 + 3 = 127 / 7 = 18.14.
Therefore, the average speed of the train is 18.14 m/s.

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