Question

The distance between Detroit, Ml to Paris, France is approximately 3930 mi. Flying from Detroit to Paris take 8 hr with the jet stream. The return flight takes 8.3 hr since the plane is flying against the jet stream. a. What the plane Soren still in air, rounded to the nearest whole number, is blank mph b. What the speed of the jet stream, rounded to the nearest whole number, is blank mph

Answer 1

a)
`s=482moh`

b)
`s'=9mph`

Explanation:

From the question we are told that:

Distance
`d=3930mi`

Time of flight
`T=8hr`

Flight back
`T_b=8.3hr`

Generally the equation for Time for flight with jet steam is mathematically given by

`T=(d)/(s+s_1)`

`8=(3930)/(s+s')`

`s+s'=491.3 ....equ1`

Generally the equation for Time for flight against jet steam is mathematically given by

`T=(d)/(s-s_1)`

`8.3=(3930)/(s-s_1)`

`s+s'=473.5......equ 2`

Solving equ 1 and equ 2 simultaneously

`s+s'=491.3`

`s+s'=473.5`

Therefore

`s=482moh`

`s'=9mph`