Final answer:
The Lockheed SR71 Blackbird's average speed is calculated by dividing the total distance traveled by the total time taken, resulting in an average speed of 2,200 miles per hour (mph).
Step-by-step explanation:
The question asks about calculating the average speed of the Lockheed SR71 Blackbird given its distance traveled and the time it took. To find the average speed, we use the formula:
average speed = total distance / total time
We are given that the Blackbird travels 6,600 miles in 3 hours. Thus, its average speed would be:
6,600 miles / 3 hours = 2,200 miles per hour (mph).
This calculation shows the remarkable capability of the SR71 Blackbird, emphasizing its status as one of the fastest manned aircraft ever built.