Question

It takes serina 0.25 hours to drive to school. Her route is 16km long . What is serina’s average speed on her drive to school

Answer 1

Step-by-step explanation:

distance=16km=16000m

time=0.25hours=1/4hr=15min=900sec

speed=dist./time

=16000/900=160/9=17.777m/s

speed=17.78m/s (rounded)

Answer 2

64

Step-by-step explanation:

Avg. speed = total distance/total time

Avg. speed= 16km/0.25h

Avg. speed= 64km/h