The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square units?

Enter your answer as a number, like this: 42

Do not enter any units.

Question

Anastasia Foster

Mathematics

29 December, 03:18

The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square units?

Enter your answer as a number, like this: 42

Do not enter any units.

+2

Answers (1)

Know the Answer?

Nasir Booth · Answer 1

A) L = (2*W) - 4

B) L*W = 160

B) L = 160/W

Substituting that into A)

160/W = (2*W) - 4

160 = 2W^2 - 4W

2W^2 - 4W-160 = 0

Width = 10

Length = 16

The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square units?Enter your answer as a number, like this: 42Do not enter any units.

The length of a rectangle is 4 units less than twice the width. What is the length if the area of the rectangle is 160 square units?

Enter your answer as a number, like this: 42

Do not enter any units.