Answer: (3,-2)
Step-by-step explanation:
![-3x-7y=5\\15x+6y=33](https://tex.z-dn.net/?f=-3x-7y%3D5%5C%5C15x%2B6y%3D33)
![5(-3x-7y)=5(5)\\-15x-35y=25](https://tex.z-dn.net/?f=5%28-3x-7y%29%3D5%285%29%5C%5C-15x-35y%3D25)
new system:
![-15x-35y=25\\15x+6y=33](https://tex.z-dn.net/?f=-15x-35y%3D25%5C%5C15x%2B6y%3D33)
add.
![-29y=58\\y=-2](https://tex.z-dn.net/?f=-29y%3D58%5C%5Cy%3D-2)
plug in -2 for y
![-3x-7(-2)=5\\-3x+14=5\\-3x=-9\\x=3](https://tex.z-dn.net/?f=-3x-7%28-2%29%3D5%5C%5C-3x%2B14%3D5%5C%5C-3x%3D-9%5C%5Cx%3D3)
system:
![(3,-2)](https://tex.z-dn.net/?f=%283%2C-2%29)
X=12
Hope this helps
10x-20+6x+8=180º
Let x = the amount that Seini earned
Then x + 25 = the amount that Gavin
The amount Gavin earned would also = 425 - x (your directions asked you to have 2 equations.)
Together they earned 425:
x + (x + 25) = 425
2x + 25 = 425
2x = 400
Now divide both sides by 2 to find x.
Use all of this data to satisfy the directions.
(10,1250),(20,1400)
slope = (1400 - 1250) / (20 - 10) = 150/10 = 15
so every hr of training raises the salary by $ 15
A 48.5 The answer is A because you would put the numbers in order from least to greatest, find the median, then find the median of the other two sets.