Respuesta :
The speed of the plane was 291.13mph.
What is speed?
Speed is distance travelled per unit time. It is scalar quantity
Given
The difference in distances was 600 miles; the difference in speeds was 190mph. That means the time was 600/190 = 3.16 hours.
Since the plane flew 920 miles in that time, its speed was 920/3.16 = 291.13mph.
To know more about speed refer to:
https://brainly.com/question/13943409
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