The perimeter of a rectangle is given by the formula,
![P=2l+2w](https://tex.z-dn.net/?f=P%3D2l%2B2w)
We substitute,
and
![l=\frac{7}{2}x+7y](https://tex.z-dn.net/?f=l%3D%5Cfrac%7B7%7D%7B2%7Dx%2B7y)
into the above formula to obtain the expression,
![15x+17y=2(\frac{7}{2}x+7y)+2w](https://tex.z-dn.net/?f=15x%2B17y%3D2%28%5Cfrac%7B7%7D%7B2%7Dx%2B7y%29%2B2w)
![15x+17y=7x+14y+2w](https://tex.z-dn.net/?f=15x%2B17y%3D7x%2B14y%2B2w)
We now group the x and y terms on the Left Hand Side of the equation to get.
![15x-7x+17y-14y=2w](https://tex.z-dn.net/?f=15x-7x%2B17y-14y%3D2w)
![8x+7y=2w](https://tex.z-dn.net/?f=8x%2B7y%3D2w)
We now divide through by 2 to get,
![4x+\frac{7}{2}y=w](https://tex.z-dn.net/?f=4x%2B%5Cfrac%7B7%7D%7B2%7Dy%3Dw)
Therefore the width of the rectangle is
![4x+\frac{7}{2}y](https://tex.z-dn.net/?f=4x%2B%5Cfrac%7B7%7D%7B2%7Dy)
Is this a true or false question? Or a statement? I’ll answer in comments. Don’t worry I won’t take points without giving an answer :)
B is the answer ////////////////////////////////////////////
Answer: B
Step-by-step explanation: So that you know you are only getting the best for what YOU PAID for.
Answer:
y = -1/2x
Step-by-step explanation:
The slope is negative and 1/2, and y-intercept is 0