SOLUTION: Flying against the jet stream, a jet travels 5490 miles in 9 hours. Flying with the jet stream, the same jet travels 5820 miles in 6 hours. What is the rate of the jet in still air

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Flying against the jet stream, a jet travels 5490 miles in 9 hours. Flying with the jet stream, the same jet travels 5820 miles in 6 hours. What is the rate of the jet in still air      Log On


   

Question 1193083: Flying against the jet stream, a jet travels 5490 miles in 9 hours. Flying with the jet stream, the same jet travels 5820 miles in 6 hours. What is the rate of the jet in still air and what is the rate of the jet stream?
Found 2 solutions by greenestamps, josgarithmetic:
Answer by greenestamps(13200) About Me  (Show Source):
You can put this solution on YOUR website!


(1) Divide 5490 by 9 to find the speed, A, against the wind
(2) Divide 5820 by 6 to find the speed, B, with the wind
(3) The speed of the plane, C, is the average of A and B
(4) The speed of the wind is the difference between C and A (or between C and B)

Simple arithmetic... I leave it to you

Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
r, speed of the jet if no jet stream
w, speed of the jet stream

system%28r-w=5490%2F9%2Cr%2Bw=5820%2F6%29
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