SOLUTION: Bob travels in an airplane a distance of 1860 miles. For one- third of distance, the airplane flies at a speed of 560 miles per hour, and for the rest of the distance, it flies at

Algebra ->  Average -> SOLUTION: Bob travels in an airplane a distance of 1860 miles. For one- third of distance, the airplane flies at a speed of 560 miles per hour, and for the rest of the distance, it flies at       Log On

             SPEED      TIME            DISTANCE

firstpart      560      620/560          620

lastpart       620     1240/620          1240