testing header
Math Goodies is a free math help portal for students, teachers, and parents.
Free Math
Newsletter
 
 
Interactive Math Goodies Software

Buy Math Goodies Software
testing left nav
Math Forums @ Math Goodies
Math Forums @ Math Goodies
Home | Profile | Register | Active Topics | Members | Search | FAQ
Username:
Password:
Save Password
Forgot your Password?

 All Forums
 Homework Help Forums
 Basic Math and Pre-Algebra
 Help!
 New Topic  Reply to Topic
 Printer Friendly
Author Previous Topic Topic Next Topic  

Mimiwold
New Member

USA
2 Posts

Posted - 07/14/2009 :  21:02:05  Show Profile  Reply with Quote
I
the length of a rectangle is 3 more than twice its width. If the perimeter is 22 find the dimensions. How do I do this? Any help appreciated!
Go to Top of Page

Subhotosh Khan
Advanced Member

USA
9117 Posts

Posted - 07/15/2009 :  10:52:21  Show Profile  Reply with Quote
quote:
Originally posted by Mimiwold

I
the length of a rectangle is 3 more than twice its width. If the perimeter is 22 find the dimensions. How do I do this? Any help appreciated!



First name variables:

Width of rectangle = W

Length of rectangle = L = 2W + 3 (from "...length of a rectangle is 3 more than twice its width") ................ (1)

Perimeter of a rectangle = 2L + 2W = 2(2W + 3) + 2W

perimeter is 22

2(2W + 3) + 2W = 22

Solve for 'W' from above - then solve for 'L' from (1)

Go to Top of Page
  Previous Topic Topic Next Topic  
 New Topic  Reply to Topic
 Printer Friendly
Jump To:
Math Forums @ Math Goodies © 2000-2004 Snitz Communications Go To Top Of Page
This page was generated in 0.04 seconds. Snitz Forums 2000
testing footer
About Us | Contact Us | Advertise with Us | Facebook | Blog | Recommend This Page




Copyright © 1998-2014 Mrs. Glosser's Math Goodies. All Rights Reserved.

A Hotchalk/Glam Partner Site - Last Modified 22 Oct 2014