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.