Using order of operations, the answer is 569.
Answer:
(5x+20)+(4x-11)=180(linear pair)
9x+9=180
9x=180-9
9x=171
x=171/9
x=19
now,
(2y+19)+(5x+20)=180(co-interior angle)
2y+19+5×19+20=180
2y+134=180
2y=180
y=180/2
y=90
Answer:
He is a person with a profile on brainly. And I do believe that I have him as one of my friends*
*or not :)
Step-by-step explanation:
The slope within two sets of points is calculated using the slope equation 
<h3>What is slope?</h3>
The slope of a line or points is the rate of change of the line.
This in other words means that, the vertical change per unit horizontal change
Assume that the points are given as:
(x1, y1) and (x2, y2)
The slope (m) of the points is:

Hence, the equation of two sets of points is 
Read more about slopes at:
brainly.com/question/1884491
#SPJ1
Answer:
You have to solve for the letter
Step-by-step explanation:
For example, Q5 is 40 - 5n = -2.
- You subtract 40 from -2 and get -42 then you have 5n = -42.
- You divide 5 to -42 so
. - The answer is -8.4.
*Use a calculator if necessary.*
~Hope this is helps (.^.)~