Asked by Samiya
A plane flies from city x to city y against the wind in 8 hours and flies back from city y to city x with the wind in 5 hours. If the speed of the wind is 650 mph, find the wind speed in mph?
Answers
Answered by
Reiny
That is some wind!!!
I think you have a typo and meant that the plane's speed is 650 mph.
however, taking it as is:
let the plane's speed be x mph
from city x to city y: distance = 8(x-650)
from city y to city x: distance = 5(x+650)
8(x-650) = 5(x+650)
solve for x , you will get a speed of 2817 mph
Make the necessary changes.
I think you have a typo and meant that the plane's speed is 650 mph.
however, taking it as is:
let the plane's speed be x mph
from city x to city y: distance = 8(x-650)
from city y to city x: distance = 5(x+650)
8(x-650) = 5(x+650)
solve for x , you will get a speed of 2817 mph
Make the necessary changes.
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