Answer:
literacy rate
Step-by-step explanation:
reasearchers know hot to read and write
Answer:
16
Step-by-step explanation:
Answer:
5% of 600 is 30, then you multiply the 30 by the 4 years which gives you 120. then you add the original 600 with the 5 person from the four years which is 120 that comes to 720. so 720 is how much is in salma's account after 4 years.
Answer:
-2/3
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
We are given two functions:
![\displaystyle f(x)=\frac{x-16}{x^2+6x-40}\text{ and } g(x)=\frac{1}{x+10}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20f%28x%29%3D%5Cfrac%7Bx-16%7D%7Bx%5E2%2B6x-40%7D%5Ctext%7B%20and%20%7D%20g%28x%29%3D%5Cfrac%7B1%7D%7Bx%2B10%7D)
And we want to find:
![f(x)+g(x)](https://tex.z-dn.net/?f=f%28x%29%2Bg%28x%29)
Thus:
![\displaystyle =\frac{x-16}{x^2+6x-40}+\frac{1}{x+10}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7Bx-16%7D%7Bx%5E2%2B6x-40%7D%2B%5Cfrac%7B1%7D%7Bx%2B10%7D)
We can factor the denominator of the first term:
![\displaystyle =\frac{x-16}{(x+10)(x-4)}+\frac{1}{x+10}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7Bx-16%7D%7B%28x%2B10%29%28x-4%29%7D%2B%5Cfrac%7B1%7D%7Bx%2B10%7D)
In order to add the two terms, we must have a common denominator. To achieve this, we can multiply to second term by (x - 4). Therefore:
![\displaystyle =\frac{x-16}{(x+10)(x-4)}+\frac{1}{x+10}\Big(\frac{x-4}{x-4}\Big)](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7Bx-16%7D%7B%28x%2B10%29%28x-4%29%7D%2B%5Cfrac%7B1%7D%7Bx%2B10%7D%5CBig%28%5Cfrac%7Bx-4%7D%7Bx-4%7D%5CBig%29)
Multiply:
![\displaystyle =\frac{x-16}{(x+10)(x-4)}+\frac{x-4}{(x+10)(x-4)}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7Bx-16%7D%7B%28x%2B10%29%28x-4%29%7D%2B%5Cfrac%7Bx-4%7D%7B%28x%2B10%29%28x-4%29%7D)
Combine:
![\displaystyle =\frac{(x-16)+(x-4)}{(x+10)(x-4)}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7B%28x-16%29%2B%28x-4%29%7D%7B%28x%2B10%29%28x-4%29%7D)
Simplify:
![\displaystyle =\frac{2x-20}{(x+10)(x-4)}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7B2x-20%7D%7B%28x%2B10%29%28x-4%29%7D)
We can expand the denominator:
![\displaystyle =\frac{2x-20}{x^2+6x-40}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%3D%5Cfrac%7B2x-20%7D%7Bx%5E2%2B6x-40%7D)
Therefore, our answer is A.