SOLUTION: An executive drove from home at an average speed of 50 mph to an airport where a helicopter was waiting. The executive boarded the helicopter and flew to the corporate offices at a

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Question 1102920: An executive drove from home at an average speed of 50 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 100 mph. The entire distance was 450 mi. The entire trip took 5 h. Find the distance from the airport to the corporate offices.
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
x, distance from airport to corporate office 
             SPEED       TIME         DISTANCE

DROVE          50       (450-x)/50     450-x

FLEW          100         x/100          x

Total                      5            450

Variables could be assigned differently; or two variables could be used, either both for time or both for distances; but the arrangement shown in the table might be most efficient.

highlight_green%28%28450-x%29%2F50%2Bx%2F100=5%29
Solve this equation for x.