Aplane covers 2,160 miles in 5.5 hours. what is the average speed of the plane to the nearest tenth?

Hence, the average speed of the plane is:

                   392.7 miles/hour.

Step-by-step explanation:

The distance covered by a plane is: 2160 miles.

Also the time taken by the plane to cover this distance is: 5.5 hours.

Now, the average speed  of the plane is the ratio of the total  distance covered to the total time taken.

i..e

Speed=Distance/Time.

Hence,

                          Hence, average speed is:

                                  392.7 miles/hour

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.

c) the median for town a 30" is greater than the median for town b 25"

step-by-step explanation:

town a, median = q2 = 30

town b, median - q2 = 25

so the median for town a 30" is greater than the median for town b 25"