00:01
All right, in your question, we have this jet.
00:02
It's going to make a trip against the jet stream, and it gives us also information about a trip it makes with the jet stream.
00:10
Okay, and what i'm going to first try to determine is the rate with, or let's say, against jet stream.
00:32
And to calculate that, your rate should equal the distance divided by the time.
00:38
So the distance it traveled when it was going against the jet stream, stream was 4 ,040 miles, and i would divide that by four hours.
00:49
And that works out to 110 miles per hour.
00:54
The rate with the jet stream would be distance divided by time.
01:07
This distance, they tell us they traveled 7 ,500 miles in six hours, and that works out to 1 ,250 miles per hour.
01:19
So all i've done is figure out the rate with the jet stream and the rate without it.
01:24
What you're trying to figure out is what the jet itself would be flying in still air.
01:30
So we'll say let x equal airplane or jet speed.
01:48
I'll put jet rate and let y equal the jet stream rate.
02:01
So i know when i fly against the jet stream, i would take...