SOLUTION: Arturo flies a plane against a headwind for 4543 miles. The return trip with the wind took 18 hours less time. If the wind speed is 9 mph, how fast does Arturo fly the plane when t

SOLUTION: Arturo flies a plane against a headwind for 4543 miles. The return trip with the wind took 18 hours less time. If the wind speed is 9 mph, how fast does Arturo fly the plane when t

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Question 1077431: Arturo flies a plane against a headwind for 4543 miles. The return trip with the wind took 18 hours less time. If the wind speed is 9 mph, how fast does Arturo fly the plane when there is no wind?
Answer by josgarithmetic(39620) (Show Source): You can put this solution on YOUR website!

               SPEED       TIME      DISTANCE
AGAINST        r-9          t        4543
WITH W         r+9         t-18      4543

System of equations:

-
A POSSIBLE, NEATER WAY:
the difference between t and t-18 is 18.

Solve this equation for r.
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