SOLUTION: Oh please help me. I a beginning to wonder if this problem is even solvable.
A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind
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-> SOLUTION: Oh please help me. I a beginning to wonder if this problem is even solvable.
A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind
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Question 507609: Oh please help me. I a beginning to wonder if this problem is even solvable.
A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind. Find the speed of the wind if the pilot's speed instill air is 230 miles per hour. Found 2 solutions by lwsshak3, josmiceli:Answer by lwsshak3(11628) (Show Source):
You can put this solution on YOUR website! A pilot can travel 400 miles with the wind in the same amount of time as 336 miles against the wind. Find the speed of the wind if the pilot's speed instill air is 230 miles per hour
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let x=wind speed
230+x=speed of plane with the wind
230-x=speed of plane against the wind
travel time = distance/speed (same for with and against the wind
400/(230+x)=336/(230-x)
cross-multiply
400(230-x)=336(230+x)
92000-400x=77280+336x
336x+400x=92000-77280
736x=14720
x=20 mph
ans:
wind speed=20 mph
You can put this solution on YOUR website! Let = the Pilot's speed in still air
Let = the wind speed
Let = The pilot's time flying with and against the wind
given: = speed flying with the wind = speed flying against the wind
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With the wind:
(1)
Against the wind:
(2)
------------------------
(1)
(2)
Add the equations hrs
Plug this back into (1) or (2)
(1)
(1)
(1)
(1)
The wind speed is 20 mi/hr
check answer:
(2)
(2)
(2)
OK
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