Answer:
1+1 = 1111111111111111111111
Answer:
x = 15
Step-by-step explanation:
Given
See attachment
Required
Find x
The figure in the attachment is a quadrilateral and the angles in a quadrilateral add up to 360.
So, we have:
90 + 6x + 5+ 10x - 40 + 4x + 5 = 360
Collect like terms
6x + 10x + 4x = 360 - 90 - 5 + 40 - 5
20x = 300
Divide both sides by 20
x = 15
Hence, the value of x is 15
Answer:
1. 50 degrees.
2. 90 degrees
3. 50 degrees
Step-by-step explanation:
hope this helps!
ANSWER
C) (6,-8)
EXPLANATION
The equations are:
![y = \frac{1}{3}x - 10](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B3%7Dx%20-%2010)
and
![2x+y=4](https://tex.z-dn.net/?f=2x%2By%3D4)
We substitute the first equation into the second equation to get:
![2x + \frac{1}{3}x - 10 = 4](https://tex.z-dn.net/?f=2x%20%2B%20%20%5Cfrac%7B1%7D%7B3%7Dx%20-%2010%20%3D%204)
We multiply through by 3 to get:
![6x + x - 30= 12](https://tex.z-dn.net/?f=6x%20%2B%20x%20%20-%2030%3D%2012)
Group similar terms,
![6x + x = 30 + 12](https://tex.z-dn.net/?f=6x%20%2B%20x%20%3D%2030%20%2B%2012)
![7x = 42](https://tex.z-dn.net/?f=7x%20%3D%2042)
Divide both sides by 7 to get,
![x = \frac{42}{7} = 6](https://tex.z-dn.net/?f=x%20%3D%20%20%5Cfrac%7B42%7D%7B7%7D%20%20%3D%206)
Put this value of x into the first equation to get;
![y = \frac{1}{3} (6) - 10](https://tex.z-dn.net/?f=y%20%3D%20%20%5Cfrac%7B1%7D%7B3%7D%20%286%29%20-%2010)
![y = 2 - 10 = - 8](https://tex.z-dn.net/?f=y%20%3D%202%20-%2010%20%3D%20%20-%208)
Answer: 187.30
explanation for answer: