Answered

what was the average speed in km/h of a car that travels 400.0 km in 4.5 h?

Sagot :

Ateeyeshaid
[tex]s= \frac{d}{t} [/tex]

while, S be the speed
          D be the distance
          T be the time

so,
[tex]s = \frac{400 }{ 4.5} = 88.8 km/hr[/tex]