Question

the width of a rectangle is 5 inches less than its length, and the area is 150 square inches. what is the width of the rectangle?

Answer 1

Answer:

Let length be x

Then,width is x-5

Area=150

x*x-5=150

x=√155

x=12.45

therefore width=12.45-5

                         =7.45 inches

Answer 2

Let the width = x

Then length will be x + 5

Area = x*(x + 5) = 150

x² + 5x = 150

x² + 5x - 150 = 0

(x + 15)(x - 10) = 0

x = -15 or x = 10

The width of the rectangle = x = 10 inches