An airplane takes 4 hours to travel 864 miles while flying against the wind. If the speed of the airplane on a windless day is 258 miles per hour, what is the speed of the wind?

I need a formula, but i can't figure it out. Please help!

Question

An airplane takes 4 hours to travel 864 miles while flying against the wind. If the speed of the airplane on a windless day is 258 miles per hour, what is the speed of the wind?

I need a formula, but i can't figure it out. Please help!

shinalcantara · Answer

try to recall the formula for velocity

k_lynn · Answer

http://astronomyonline.org/Science/Images/Velocity1.gif

shinalcantara · Answer

You'll be able to know the velocity of the plane minus the velocity of the wind using the given data on the first sentence

anonymous · Answer

v=216 ?

k_lynn · Answer

Yes.  Do you understand that now?

shinalcantara · Answer

yep. now subtract the velocity without the wind

shinalcantara · Answer

subtract it from the velocity given without the wind

k_lynn · Answer

258-216=n

k_lynn · Answer

Do you understand where I got that number?

dan815 · Answer

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