Answer:
![\left \{ {{x=2} \atop {y=2}} \right.](https://tex.z-dn.net/?f=%5Cleft%20%5C%7B%20%7B%7Bx%3D2%7D%20%5Catop%20%7By%3D2%7D%7D%20%5Cright.)
Step-by-step explanation:
Substitute the second equation into the first one:
![4x+(2x-2)=10\\6x-2=10\\6x=12\\x=2](https://tex.z-dn.net/?f=4x%2B%282x-2%29%3D10%5C%5C6x-2%3D10%5C%5C6x%3D12%5C%5Cx%3D2)
Substitute
into the second equation:
![y=2\times 2-2\\y=4-2\\y=2](https://tex.z-dn.net/?f=y%3D2%5Ctimes%202-2%5C%5Cy%3D4-2%5C%5Cy%3D2)
![\therefore \left \{ {{x=2} \atop {y=2}} \right.](https://tex.z-dn.net/?f=%5Ctherefore%20%5Cleft%20%5C%7B%20%7B%7Bx%3D2%7D%20%5Catop%20%7By%3D2%7D%7D%20%5Cright.)
Answer:
Step-by-step explanation:
The area of a rec tangle is A x W
but first you have to find the area of the triangle wich is going to be 127.5.
Then you have to multiply 127.5 times 15.
And that will give you 1,912.5.
I think this is correct, but im not sure.
Hello.
In 10 years, his age will be
![\mathrm{z+10}](https://tex.z-dn.net/?f=%5Cmathrm%7Bz%2B10%7D)
The sum of his current age and 10 equals his age in 10 years.
2 years ago his age was
![\mathrm{z-2}](https://tex.z-dn.net/?f=%5Cmathrm%7Bz-2%7D)
The difference of his current age and 2 equals his age 2 years ago.
7 years ago his age was
![\mathrm{z-7}](https://tex.z-dn.net/?f=%5Cmathrm%7Bz-7%7D)
The difference of his current age and 7 equals his age 7 years ago.
Therefore, his age after 10 years will be
, his age 2 years ago was
, and his age 7 years ago was ![\mathrm{z-7}](https://tex.z-dn.net/?f=%5Cmathrm%7Bz-7%7D)
I hope it helps.
Have a nice day.
![\boxed{imperturbability}](https://tex.z-dn.net/?f=%5Cboxed%7Bimperturbability%7D)
Y=(kx)/z
15=(k10)/4
15=(5k/2)
15=k(5/2)
ties both sides by 2/5 to clear fraction
6=k
y=(6x)/z
x=20
z=6
y=(6*20)/6
y=20
Answer:
m<2
Step-by-step explanation:
To get to this, you first need to move the variable to one side, so you could subtract m from both sides to make the equation 16>7m+2. Next, you subtract 2 from both sides to make the equation into 14>7m. Finally, you would divide 7 from both sides to get 2>m, or m<2.
Hope this helps!