High School

Welcome to the article You are building a rectangular dog pen with an area of tex 90 text ft 2 tex You want the length of the pen to. On this page, you will learn the essential and logical steps to better understand the topic being discussed. We hope the information provided helps you gain valuable insights and is easy to follow. Let’s begin the discussion!

You are building a rectangular dog pen with an area of [tex]90 \, \text{ft}^2[/tex]. You want the length of the pen to be 3 ft longer than twice its width. Which equation can you use to find the width of the pen?

Answer :

Answer:

Equation which can be used to find the width of the pen is:

2w²+3w-90=0

Step-by-step explanation:

You are building a rectangular dog pen, the length of the pen is 3 ft longer than twice its width.

Let w be the width of the pen

and l be the length

Then, l=2w+3

Also, Area of pen=90 ft²

i.e. lw=90

⇒ (2w+3)w=90

or 2w²+3w=90

or 2w²+3w-90=0

Hence, equation which can be used to find the width of the pen is:

2w²+3w-90=0

Thank you for reading the article You are building a rectangular dog pen with an area of tex 90 text ft 2 tex You want the length of the pen to. We hope the information provided is useful and helps you understand this topic better. Feel free to explore more helpful content on our website!

Rewritten by : Brahmana

Set up equations.
90=l*w
l = 2w+3
substitute the second equation into the area equation and solve for w