Question

The width of a rectangle is 4y - 8.5 feet and the length is 8.5y + 10 feet. Find the perimeter of the rectangle.​

Answer 1

P = 25y + 3

Explanation:

Draw out the figure. You should know that 2(width+length) = Perimeter.

Therefore, when you plug everything in, your expression should look like this:

2(12.5y+1.5) = P

In the end, since you don’t have any other information about y, your final answer would be 25y + 3 = P.