SOLUTION: With a certain tail wind a jet aircraft arrives at its destination, 1,890 miles away, in 3 hours. Flying against the same wind, the plane makes the return trip in 3 3/8 hours. Find
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-> SOLUTION: With a certain tail wind a jet aircraft arrives at its destination, 1,890 miles away, in 3 hours. Flying against the same wind, the plane makes the return trip in 3 3/8 hours. Find
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Question 824628: With a certain tail wind a jet aircraft arrives at its destination, 1,890 miles away, in 3 hours. Flying against the same wind, the plane makes the return trip in 3 3/8 hours. Find the wind speed and the plane's airspeed. Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! ---
s = d / t
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outbound:
s + w = 1890/3
s = 1890/3 - w
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return:
s - w = 1890/(3+3/8)
s = 1890/(24/8+3/8) + w
s = 1890/(27/8) + w
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s + w = 1890/3
s - w = 1890/(3+3/8)
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put the system of linear equations into standard form
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x = airplane airspeed
y = wind speed
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x + y = 630
x - y = 560
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https://sooeet.com/math/system-of-linear-equations-solver.php
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answer:
x = airplane airspeed = 595 mph
y = wind speed = 35 mph
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