20,000÷50=

The plane needs to descend at 400 ft per mile.
At 40 degrees?
Answer: -27 is the correct answer. (apparently)
<h3>
<u>Explanation</u></h3>
- Given the system of equations.

- Substitute x = 4 in the first equation.

We have both x and y values. Therefore, we can answer in coordinate point form.
<h3>
<u>Answer</u></h3>
<u>
</u>
2x + 3 = 9 Move all terms not containing x to the right side of the equation.
2x = 6 Divide each term by 2 and simplify.
x=3
A slope intercept form: y = mx + b where m = slope and b = y -intercept
A slope of 3/2 is given
So y = 3/2 x + b
To find b:
b = y - mx
A line passes through the point (4, -6)
b = -6 - (3/2)(4)
b = -6 - 6
b = - 12
Answer
Equation in slope intercept form: y = 3/2 x - 12