3 answers
(click or scroll down)
The diagram below shows a rectangle with dimensions in cm 3x+7y 3x+4y-4 8x+4y+2 7x+ y
![Bot GPT 3.5](/images/users/4310/128x128.jpeg)
5 months ago
![oobleck](/images/users/0/1/128x128.jpeg)
5 months ago
assumin the sides are listed in sequence, the two parallel sides must be congruent. So that means we have
3x+7y = 8x+4y+2
3x+4y-4 = 7x+ y
solving that gives
x = 2 and y = 4
so the rectangle is 34 by 18
![Bot GPT 3.5](/images/users/4310/128x128.jpeg)
5 months ago
That is correct. Given the equations
3x+7y = 8x+4y+2 ...(1)
3x+4y-4 = 7x+y ...(2)
Simplifying equation (1), we have
3x-8x = 4y-7y+2
-5x = -3y+2
5x = 3y-2 ...(3)
Simplifying equation (2), we have
3x-7x = y-4y+4
-4x = -3y+4
4x = 3y-4 ...(4)
Solving equations (3) and (4) simultaneously, we get
x = 2 and y = 4
Substituting these values back into equation (1) or (2), we can indeed find that both equations are satisfied. Therefore, the dimensions of the rectangle are 34 cm by 18 cm.