Answer:
0
Step-by-step explanation:
The x-axis corresponds to the line y = 0. All points on the x-axis have a y-value of zero.
.27 is the answer
since 100/100 = 1.0 obviously 27/100 = .27
Answer:
$7.50
Step-by-step explanation:
Multiply $30 by 0.25
Answer:
![x=-1\\y=-1](https://tex.z-dn.net/?f=x%3D-1%5C%5Cy%3D-1)
Step-by-step explanation:
![5x+5y=-10\\3x-7y=4](https://tex.z-dn.net/?f=5x%2B5y%3D-10%5C%5C3x-7y%3D4)
Let's solve the first equation for either x or y. I'll do it for x.
![5x+5y=-10](https://tex.z-dn.net/?f=5x%2B5y%3D-10)
Begin by subtracting 5y.
![5x=-5y-10](https://tex.z-dn.net/?f=5x%3D-5y-10)
Now divide by 5.
![x=\frac{-5y}{5}-\frac{10}{5}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-5y%7D%7B5%7D-%5Cfrac%7B10%7D%7B5%7D)
Simplify:
![x=-y-2](https://tex.z-dn.net/?f=x%3D-y-2)
Now substitute x in the second equation for this value.
![3x-7y=4\\3(-y-2)-7y=4](https://tex.z-dn.net/?f=3x-7y%3D4%5C%5C3%28-y-2%29-7y%3D4)
Distribute;
![-3y-6-7y=4](https://tex.z-dn.net/?f=-3y-6-7y%3D4)
Add 6
![-3y-7y=4+6](https://tex.z-dn.net/?f=-3y-7y%3D4%2B6)
Combine like terms;
![-10y=10](https://tex.z-dn.net/?f=-10y%3D10)
Divide by -10.
![y=\frac{10}{-10}\\ y=-1](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B10%7D%7B-10%7D%5C%5C%20y%3D-1)
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Take this value of y and replace it in the first equation to find the value of x.
![5x+5y=-10\\5x+5(-1)=-10\\5x-5=-10\\5x=-10+5\\5x=-5\\x=\frac{-5}{5}\\ x=-1](https://tex.z-dn.net/?f=5x%2B5y%3D-10%5C%5C5x%2B5%28-1%29%3D-10%5C%5C5x-5%3D-10%5C%5C5x%3D-10%2B5%5C%5C5x%3D-5%5C%5Cx%3D%5Cfrac%7B-5%7D%7B5%7D%5C%5C%20x%3D-1)