EXPLANATION:
Let the no. be x.
4x-12= -11
4x= -11+12
x=1/4
x=0.25
ANSWER:
x=0.25
Hope it helps u! :)
.625
take the amount of quarts divide it by 4 we get .625 then we put it was a fraction 625/1000 after we simplify we get 5/8
5/8 of a can per quart
Answer:
![(2,3)](https://tex.z-dn.net/?f=%282%2C3%29)
Step-by-step explanation:
The first equation is ![x+y=5](https://tex.z-dn.net/?f=x%2By%3D5)
The second equation is ![y=\frac{1}{2}x+2](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B1%7D%7B2%7Dx%2B2)
When we graph these two equations, <em>they will meet at a point which represent the solution of the two equations</em>.
We can solve the two equations simultaneously to determine their point of intersection.
Let us substitute the second equation into the first equation to get;
![x+\frac{1}{2}x+2=5](https://tex.z-dn.net/?f=x%2B%5Cfrac%7B1%7D%7B2%7Dx%2B2%3D5)
Multiply through by 2 to get;
![2x+x+4=10](https://tex.z-dn.net/?f=2x%2Bx%2B4%3D10)
Group similar terms to obtain;
![2x+x=10-4](https://tex.z-dn.net/?f=2x%2Bx%3D10-4)
Simplify;
![3x=6](https://tex.z-dn.net/?f=3x%3D6)
Divide both sides by 3;
![\Rightarrow x=2](https://tex.z-dn.net/?f=%5CRightarrow%20x%3D2)
Put
into the second equation;
![y=\frac{1}{2}(2)+2](https://tex.z-dn.net/?f=y%3D%5Cfrac%7B1%7D%7B2%7D%282%29%2B2)
![\Rightarrow y=1+2](https://tex.z-dn.net/?f=%5CRightarrow%20y%3D1%2B2)
![\Rightarrow y=3](https://tex.z-dn.net/?f=%5CRightarrow%20y%3D3)
Therefore the graphs of the two functions intersect at (2,3)
See graph in attachment.
Answer:
C
Step-by-step explanation:
There is a positive correlation, as hours spent gets bigger the test score gets bigger with some outliers