Hello, McDiesel!

Two airplanes are flying away from an airport at a right angle to each other.

The distance between them is 470 miles.

Plane is 270 miles from the airport.

Plane is traveling at a speed of 520 mi/hr.

The distance between them is increasing by 660 mi/hr.

How fast is plane traveling?Code:Q * : | * y | * : | * C * * z : | * * ___| * 470 * 20√370| * * : | * * : | * * - * - - - - - - - - * - - - - - * A 270 B x P

The airport is at

Plane is at

Plane is at

In right triangle

In a certain time, plane flew miles from to

. .

In a certain time, plane flew miles from to

. .

The distance between them is: .

From right triangle

Differentiate with respect to time: .

. . and we have: .

At that instant in question: .

Substitute those values and solve for