[Walker2 2.P.016.] You jog at 6.2 mi/h for 5.0 mi, then you jump into a car and drive for another 5.0 mi. With what average speed must you drive if your average speed for the entire 10.0 miles is to be 11.0 mi/h? I got 15.8, but the computer program (webassign) says that's wrong. I did (6.2+x) / 2 = 11 6.2+x = 22 x=22 - 6.2 x = 15.8 mi/h What did I do wrong?