Answer:
x=25
Step-by-step explanation:
125+30= 155
180-155=25
180 is the overall total of the line so the angels will add up to 180
Answer: r - 24
Step-by-step explanation:
![X=r+2;Y=2r-9;Z=r^2+17x+30](https://tex.z-dn.net/?f=X%3Dr%2B2%3BY%3D2r-9%3BZ%3Dr%5E2%2B17x%2B30)
![\frac{x*y-z}{x}](https://tex.z-dn.net/?f=%5Cfrac%7Bx%2Ay-z%7D%7Bx%7D)
![\frac{[(r+2)(2r-9)]-(r^2+17r+30)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5B%28r%2B2%29%282r-9%29%5D-%28r%5E2%2B17r%2B30%29%7D%7Br%2B2%7D)
![\frac{(2r^2-9r+4r-18)-(r^2+17r+30)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B%282r%5E2-9r%2B4r-18%29-%28r%5E2%2B17r%2B30%29%7D%7Br%2B2%7D)
![\frac{(2r^2-5r-18)-(r^2+17r+30)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B%282r%5E2-5r-18%29-%28r%5E2%2B17r%2B30%29%7D%7Br%2B2%7D)
![\frac{2r^2-5r-18-r^2-17r-30)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B2r%5E2-5r-18-r%5E2-17r-30%29%7D%7Br%2B2%7D)
Combine like terms;
![\frac{r^2-22r-48}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7Br%5E2-22r-48%7D%7Br%2B2%7D)
Solve the quadratic equation;
![\frac{(r-24)(r+2)}{r+2}](https://tex.z-dn.net/?f=%5Cfrac%7B%28r-24%29%28r%2B2%29%7D%7Br%2B2%7D)
Simplify;
![r-24](https://tex.z-dn.net/?f=r-24)
The correct answer is A. <span>0.125
</span><span>
1/8(this is a fraction)</span>
(divide the numerator by the denominator)
1÷8 = 0.125
If you want you can Convert the number to a percentage:<span>
0.125×100=12.5%
but the question is asking for decimal form therefore the answer is </span>0.125.
I also did the quiz and this was correct
Hope this helps!! :D
Answer:
7
Step-by-step explanation:
3x-6 = x+4 + 4
3x-x = 4+4+6
2x = 14
x= 7