The perimeter of the square is 25 and the side is √x+3. What is the number?
I presume you mean what is x?
Half the square’s perimeter is 12.5 or 25/2, so one side length would be 25/4.
We now have a side length that can be correctly expressed as 25/4 or √x+3
Subtract 3 from 25/4 to give 13/4, and you are left with √x=13/4
Square both sides for 169/16 which is 10.5625
hope it helps
