Answer:
x = 16
Step-by-step explanation:
12(x - 20) = -48
Use distributive property
12*x - 12*20 = -48
12x - 240 = -48
Add 240 to both sides
12x = -48 + 240
12x = 192
Divide both sides by 12
x = 192/12
x = 16
Answer with Step-by-step explanation:
Let x and y are two numbers
According to question
....(1)
Suppose x is larger than y
![x^2=x(4y+8x)](https://tex.z-dn.net/?f=x%5E2%3Dx%284y%2B8x%29)
![x=4y+8x](https://tex.z-dn.net/?f=x%3D4y%2B8x)
![x-8x=4y](https://tex.z-dn.net/?f=x-8x%3D4y)
![-7x=4y](https://tex.z-dn.net/?f=-7x%3D4y)
![y=-\frac{7}{4}x](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B7%7D%7B4%7Dx)
Substitute the value of y
![x^2+(-\frac{7}{4}x)^2=100](https://tex.z-dn.net/?f=x%5E2%2B%28-%5Cfrac%7B7%7D%7B4%7Dx%29%5E2%3D100)
![x^2+\frac{49}{16}x^2=100](https://tex.z-dn.net/?f=x%5E2%2B%5Cfrac%7B49%7D%7B16%7Dx%5E2%3D100)
![\frac{16x^2+49x^2}{16}=100](https://tex.z-dn.net/?f=%5Cfrac%7B16x%5E2%2B49x%5E2%7D%7B16%7D%3D100)
![\frac{65}{16}x^2=100](https://tex.z-dn.net/?f=%5Cfrac%7B65%7D%7B16%7Dx%5E2%3D100)
![x^2=\frac{16\times 100}{65}](https://tex.z-dn.net/?f=x%5E2%3D%5Cfrac%7B16%5Ctimes%20100%7D%7B65%7D)
![x=\sqrt{\frac{1600}{65}}=\frac{40}{\sqrt{65}}=\frac{40}{65}\sqrt{65}=\frac{8}{13}\sqrt{65}](https://tex.z-dn.net/?f=x%3D%5Csqrt%7B%5Cfrac%7B1600%7D%7B65%7D%7D%3D%5Cfrac%7B40%7D%7B%5Csqrt%7B65%7D%7D%3D%5Cfrac%7B40%7D%7B65%7D%5Csqrt%7B65%7D%3D%5Cfrac%7B8%7D%7B13%7D%5Csqrt%7B65%7D)
![y=-\frac{7}{4}\times \frac{8}{13}\sqrt{65}=-\frac{14}{13}\sqrt{65}](https://tex.z-dn.net/?f=y%3D-%5Cfrac%7B7%7D%7B4%7D%5Ctimes%20%5Cfrac%7B8%7D%7B13%7D%5Csqrt%7B65%7D%3D-%5Cfrac%7B14%7D%7B13%7D%5Csqrt%7B65%7D)
Answer:
Addition and subtraction property of equality
Step-by-step explanation:
because -8-×=9.
Answer:
It D hope this is right
Step-by-step explanation:
I'm learning this in class right now and I'm pretty good at it so hope you get it right
Both of your answers are correct!
so yes youre doing it right