The average speed for the whole trip will be 40 miles per hour.
The average speed is the ratio of the total distance over the total time taken. Then the average speed is given as,
Average speed = (Total distance) / (Total time)
You drive for 30 minutes at 30 miles per hour. Then the distance covered will be
D₁ = 30 x 30 / 60
D₁ = 15 miles
And then for another 30 minutes at 50 miles per hour. Then the distance covered will be given as,
D₂ = 50 x 30 / 60
D₂ = 25 miles
Then the average speed for the whole trip will be
Average speed = (15 + 25) / (0.5 + 0.5)
Average speed = 40 / 1
Average speed = 40 miles per hour
Thus, 40 miles per hour will be the average speed for the whole trip.
More about the average speed link is given below.
https://brainly.com/question/12322912
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