Respuesta :

Answer:

Alisha

Step-by-step explanation:

Given:

Bill drove 315 miles in 7 hours.

Alisha drove 235 miles in 5 hours.

Joanne drove 414 hours in 9 hours .

Question asked:

Which person drove at an average speed of 47 miles per hour ?

Solution:

To know that who drove with an average speed of 47 miles per hour, we will have to find speed of each rider by using speed and distance formula:-

For Bill

[tex]Speed=\frac{Diatance}{Time}[/tex]

         [tex]\frac{315}{7} =45\ miles \ per\ hour[/tex]

For Alisha

[tex]Speed=\frac{Diatance}{Time}[/tex]

         [tex]=\frac{235}{5} =47\ miles\ per\ hour[/tex]

For Joanne

[tex]Speed=\frac{Diatance}{Time}[/tex]

         [tex]=\frac{414}{9} =46\ miles\ per\ hour[/tex]

Thus, Alisha drove with an average speed of 47 miles per hour.