contestada

Allan’s friend drove him from Philadelphia to Arlington. The distance is 122 miles and the trip took 2 hours. How fast was Allan’s friend driving?

Respuesta :

Remember that

The speed is given by the ratio between the distance and the time

speed=distance/time

In this problem

we have

distance=122 miles

time=2 hours

so

substitute

speed=122/2

speed=61 mph