0.4 then 1/2 then 60% is smallest to largest. Because if you make them all decimals then it would be 0.4 then 0.5 (1/2) then 0.6 (60%)
Answer:
(3,-1)
Step-by-step explanation:
So we have the system of equations:
![3x+y=8\\2x-y=7](https://tex.z-dn.net/?f=3x%2By%3D8%5C%5C2x-y%3D7)
As directed, add straight down. The y-variable will cancel:
![5x=15](https://tex.z-dn.net/?f=5x%3D15)
Now, divide both sides by 5. The left cancels:
![x=3](https://tex.z-dn.net/?f=x%3D3)
So x is 3.
Now, substitute 3 for x in either of the equations:
![3x+y=8](https://tex.z-dn.net/?f=3x%2By%3D8)
Substitute 3 for x:
![3(3)+y=8](https://tex.z-dn.net/?f=3%283%29%2By%3D8)
Multiply:
![9+y=8](https://tex.z-dn.net/?f=9%2By%3D8)
Subtract 9 from both sides:
![y=-1](https://tex.z-dn.net/?f=y%3D-1)
So, our answer is: x=3, y=-1 or (3,-1).
And we are done :)
Student b? could you send a full picture
Answer:
0 hundredths. 2 tenths and 8 ones