The area of a rectangle is 44 in2. Express the perimeter P (in inches) of the rectangle in terms only of x.

Question

The area of a rectangle is 44 in². Where x is the width in inches and y is the length in inches, express the length of the rectangle in terms of its width.

y =  44/ x

 

Express the perimeter P (in inches) of the rectangle in terms only of x.

Answer 1

Perimeter = 2*(x+y)

substitute y=44/x in the above equation and solve

hope this helps