SOLUTION: Flying against the wind, a jet travels 6880 mi in 8 hours. Flying with the wind, the same jet travels 11520 mi in 9 hours. What is the rate of the jet in still air and what is the
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-> SOLUTION: Flying against the wind, a jet travels 6880 mi in 8 hours. Flying with the wind, the same jet travels 11520 mi in 9 hours. What is the rate of the jet in still air and what is the
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Question 926097: Flying against the wind, a jet travels 6880 mi in 8 hours. Flying with the wind, the same jet travels 11520 mi in 9 hours. What is the rate of the jet in still air and what is the rate of the wind? Answer by TimothyLamb(4379) (Show Source):
You can put this solution on YOUR website! x = jet speed in still air
y = wind speed
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s = d/t
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upwind:
x - y = 6880/8
x - y = 860
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downwind:
x + y = 11520/9
x + y = 1280
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put the system of linear equations into standard form
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x - y = 860
x + y = 1280
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copy and paste the above standard form linear equations in to this solver:
https://sooeet.com/math/system-of-linear-equations-solver.php
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solution:
x = jet speed in still air = 1070 mph
y = wind speed = 210 mph
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