Respuesta :

♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫

Average speed = total distance / total time

Total distance = 57 + 96 = 153

Total time = 2 + 5 = 7

Substitute these values in:

Average speed = 153/7

Solve:

Average speed = 21.857142

The average speed is 21.86 km/h

Hope This Helps You!

Good Luck (:

Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ

23.85 km/h ( (57 /2)+(96 /5) )/ 2= 23.85