00:01
An airport at the same time.
00:02
One flying east, the other flying west.
00:05
The eastbound plane travels 150 miles per hour slower.
00:09
They are 2 ,250 miles apart after three hours.
00:14
Find the rate of each plane.
00:16
So we're going to let the westbound plane be x miles per hour, and then the rate of the eastbound plane is x minus 150 miles per hour because it's 150 miles slower.
00:29
We're going to use the formula speed times time equals distance.
00:36
And so for the equation, i'm going to start with the westbound plane, which is 3x, plus the eastbound plane.
00:45
So 3 multiplied by x minus 150.
00:49
And that equals the distance of when they are apart, which is 2 ,250 miles...