In a square, the sum of the lengths of three sides is 48 and in a rectangle the difference between a length and a width is 7 in. If a width of the rectangle is the same as a side of the square, how long is a length of the rectangle?
Given the following figure, what is the value of x?
The length of one side of the square must be 48 / 3 = 16
And in the rectangle we have that
L - W = 7
L - 16 = 7 add 16 to both sides
L = 23