The answer is 36, because when you divide 80/20 it is going to be 4 and 9*4 is 36!
Answer: A 40 feet
Explanation:
If a building is 380 feet tall and the elevator has to descend 420 feet to get to the underground parking garage. So 420 - 380 to remove the height of the building from the equation. This would give us 40 feet underground left until the elevator reaches its desired destination.
U either don't and keep the money all to your self or 5 1/2 dollars to each person
Answer:
B. x is all real numbers.
Step-by-step explanation:
On the left hand side of the y axis the values of x will become more and more negative and on the right hand side of the y axis the x values will become more and more positive.
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<em><u>Another way of denoting this is:</u></em></h3>
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Answer:
![y=-2.5x-9](https://tex.z-dn.net/?f=y%3D-2.5x-9)
Step-by-step explanation:
One is given the following equation.
![5x + 2y = 12](https://tex.z-dn.net/?f=5x%20%2B%202y%20%3D%2012)
The problem asks one to find a line that is parallel to this one, and passes through the point:
. The equation of the given line is in the standard format. The easiest approach to solve this problem is to change the equation of the given line into the slope-intercept format. The solve intercept format follows the following general equation:
![y=mx+b](https://tex.z-dn.net/?f=y%3Dmx%2Bb)
Where (m) is the slope of the line and (b) is the y-intercept. Manipulate the given equation such that it follows this format:
![5x+2y=12\\2y=12-5x\\y=6-2.5x\\\\y=-2.5x+6](https://tex.z-dn.net/?f=5x%2B2y%3D12%5C%5C2y%3D12-5x%5C%5Cy%3D6-2.5x%5C%5C%5C%5Cy%3D-2.5x%2B6)
One property of parallel lines is that they have the same slope. Therefore, if one uses the slope-intercept format to represent the slope of the parallel line, then one can state the following:
![y=-2.5x+b](https://tex.z-dn.net/?f=y%3D-2.5x%2Bb)
Substitute a given point on this line (
) , and solve for (b) to find (b):
![y=-2.5x+b\\(4)=-2.5(-2)+b](https://tex.z-dn.net/?f=y%3D-2.5x%2Bb%5C%5C%284%29%3D-2.5%28-2%29%2Bb)
Simplify,
![4=-2.5(-2)+b\\-4=5+b](https://tex.z-dn.net/?f=4%3D-2.5%28-2%29%2Bb%5C%5C-4%3D5%2Bb)
Inverse operations,
![-4=5+b\\-9=b](https://tex.z-dn.net/?f=-4%3D5%2Bb%5C%5C-9%3Db)
Substitute this back into the equation in slope-intercept form to find the equation of the parallel line:
![y=-2.5x-9](https://tex.z-dn.net/?f=y%3D-2.5x-9)