A plane travels 480 miles in 2 hours. What is its average speed?

To find the average speed of the plane, you use the formula for average speed, which is the total distance traveled divided by the total time taken. In this case, the plane travels 480 miles in a time period of 2 hours.

Using the formula:

Average speed = Total distance / Total time

Substituting the given values:

Average speed = 480 miles / 2 hours = 240 miles per hour (mph).

Thus, the calculation shows that the average speed of the plane is 240 mph, which confirms that this choice is correct.

Understanding this concept is essential, as average speed can often be a straightforward calculation, requiring only division of distance by time. This method can be applied in various scenarios in physics and everyday life involving motion.