Question

An executive drove from home at an average speed of 40 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at an average speed of 80 mph. The entire distance was 180 mi. The entire trip took 3 h. Find the distance from the airport to the corporate offices.

Answer 1

Explanation:

Rate X time = distance

soooo....

80x + 40 (3-x) = 180 where x is the heli time

80x + 120 - 40x = 180

40x = 60

x = 1.5 hr in the heli at 80 m/hr = 120 miles from airport to offices