Answer:
.Lower quartile = 3.5
Step-by-step explanation:
Rearranging the data from lowest to highest.
2, 3, 4, 5, 6, 7, 8, 9 , 10, 15
First finding the median to make it easier to find the lower quartile.
median : 6 and 7 but right now they're irrelevant so we don't honestly need to work that out.
The lower quartile would be 3 and 4
3+4= 7 divide by 2 = 3.5 is your lower quartile
For this case we must find the solution of the following equation:
![5x + 20 = 7 (x + 2)](https://tex.z-dn.net/?f=5x%20%2B%2020%20%3D%207%20%28x%20%2B%202%29)
Applying distributive property on the right side of the equation we have:
![5x + 20 = 7x + 14](https://tex.z-dn.net/?f=5x%20%2B%2020%20%3D%207x%20%2B%2014)
Subtracting 7x from both sides of the equation:
![5x-7x + 20 = 14\\-2x + 20 = 14](https://tex.z-dn.net/?f=5x-7x%20%2B%2020%20%3D%2014%5C%5C-2x%20%2B%2020%20%3D%2014)
Subtracting 20 from both sides of the equation:
![-2x = 14-20](https://tex.z-dn.net/?f=-2x%20%3D%2014-20)
Different signs are subtracted and the major sign is placed.
![-2x = -6](https://tex.z-dn.net/?f=-2x%20%3D%20-6)
Dividing between -2 on both sides of the equation:
![x = \frac {-6} {- 2}\\x = 3](https://tex.z-dn.net/?f=x%20%3D%20%5Cfrac%20%7B-6%7D%20%7B-%202%7D%5C%5Cx%20%3D%203)
Thus, the solution of the equation is![x = 3](https://tex.z-dn.net/?f=x%20%3D%203)
Answer:
![x = 3](https://tex.z-dn.net/?f=x%20%3D%203)
it take him 90 hrs to plow 60 acres
Answer: it’s 55/100 percent
Answer:
I believe its a vertical angle
Step-by-step explanation: