Question

The length of a rectangle is 9 less than twice its width. it's area is 18 meters. find is dimensions

pls help!!

Answer 1

6 x 3

Explanation:

xy = 18

x = 2y - 9

systems of equations. solve the quadratic equation

2x^2 - 9x - 18 = 0

(x-6)(2x+3) = 0

Solution is x=6. So y = 2(6)-9.

{6,3}