Suppose the area of a rectangle is 100 m^2 and the width is 8 meters shorter than the length. Algebraically find the length and the width of the rectangle.

Question

Round to two decimal places.

Answer 1

let x = length;then width = x-8.

 

area: x(x-8) = 100

 

This is an equation (quadratic) and you need to solve it.