a plane that travels 1400 miles during a 2 1/2-hour flight. How many miles per hour, on average, does the plane travel?
To calculate the average speed of the plane, we need to divide the total distance traveled by the total time taken.
First, let's convert the time of 2 1/2 hours to a decimal format. If we express the fraction as a decimal, we have:
2 + 1/2 = 2 + 0.5 = 2.5 hours
Next, we divide the distance of 1400 miles by the time of 2.5 hours:
Average speed = distance/time = 1400 miles / 2.5 hours
Performing the division, we get:
Average speed = 560 miles per hour
So, on average, the plane travels at a speed of 560 miles per hour.