Answer:
x = 6 8/9
Step-by-step explanation:
Solve:
- 2(4x - 24) + x = 14
- 8x - 48 + x = 14
- 9x - 48 = 14
- 9x = 62
- x = 62/9
- x = 6 8/9
-Chetan K
Answer:
0.01167
Step-by-step explanation:
180 - 0.669 = 89.331
complementary angle = 89.331
cos(89.331) = 0.01167
Answer:
-0.85
Step-by-step explanation:
use the calculator
Answer:
(2,4) is a solution to this system of equations
Step-by-step explanation:
Given system of equation are
![y=2x \hfill (1)](https://tex.z-dn.net/?f=y%3D2x%20%5Chfill%20%281%29)
![y=\frac{-1}{2}x+5\hfill (2)](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B-1%7D%7B2%7Dx%2B5%5Chfill%20%282%29)
To find the solution of the given system of equations
To Check that (2,4) is a solution to this system or not
Solving equations (1) and (2)
From equation (1) and y=2x
Now substitute y=2x is equation (2)
![2x=\frac{-1}{2}x+5](https://tex.z-dn.net/?f=2x%3D%5Cfrac%7B-1%7D%7B2%7Dx%2B5)
![\frac{-1}{5}x+5-2x=0](https://tex.z-dn.net/?f=%5Cfrac%7B-1%7D%7B5%7Dx%2B5-2x%3D0)
![5-\frac{x}{2}-2x=0](https://tex.z-dn.net/?f=5-%5Cfrac%7Bx%7D%7B2%7D-2x%3D0)
![5-\frac{x+4x}{2}=0](https://tex.z-dn.net/?f=5-%5Cfrac%7Bx%2B4x%7D%7B2%7D%3D0)
![5-\frac{5x}{2}=0](https://tex.z-dn.net/?f=5-%5Cfrac%7B5x%7D%7B2%7D%3D0)
![\frac{10-5x}{2}=0](https://tex.z-dn.net/?f=%5Cfrac%7B10-5x%7D%7B2%7D%3D0)
10-5x=0
-5x=-10
![x=\frac{10}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B10%7D%7B5%7D)
Substitute x=2 in equation (1)
y=2x
y=2(2)
Therefore y=4
Therefore the solution is (2,4)
Therefore (2,4) is a solution to the system of equations.
Answer:
b
Step-by-step explanation: