posted by HANEEN .
AN AIRPLANE TRAVELS 290 KM BETWEEN AUSTIN AND DALLAS IN 1 HOURS 15 MIN.WHAT IS ITS AVERAGE SPEED?
Average Speed = Total Distance travelled/Total time taken
You've been given a distance of 290km, and a time of 1 hour 15 minutes, which is 1.25 hours.
Can you put these values into the formula?