Results 1 to 4 of 4

Math Help - Find the area of the rectangle

  1. #1
    Junior Member
    Joined
    Sep 2009
    Posts
    49

    Find the area of the rectangle

    The width of a rectangle is (2x4)
    in. The length of the rectangle is three times the width. Find the area of the rectangle in terms of the variable x.


    i got 2(2x-4)+3x did i set it up right>
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by Candy101 View Post
    The width of a rectangle is (2x4)
    in. The length of the rectangle is three times the width. Find the area of the rectangle in terms of the variable x.


    i got 2(2x-4)+3x did i set it up right>
    Last time I checked, the area of a rectangle was (length)(width).
    Follow Math Help Forum on Facebook and Google+

  3. #3
    Junior Member
    Joined
    Sep 2009
    Posts
    49
    its 3(2x-4)(2x-4)

    12x^2-48x+48?
    is this the correct way?
    Follow Math Help Forum on Facebook and Google+

  4. #4
    Flow Master
    mr fantastic's Avatar
    Joined
    Dec 2007
    From
    Zeitgeist
    Posts
    16,948
    Thanks
    5
    Quote Originally Posted by Candy101 View Post
    its 3(2x-4)(2x-4)

    12x^2-48x+48?
    is this the correct way?
    Yes, although I wouldn't bother expanding unless the question specifically required it.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: March 26th 2009, 07:14 PM
  2. Find Area of Rectangle
    Posted in the Geometry Forum
    Replies: 2
    Last Post: November 20th 2008, 02:15 PM
  3. area of a rectangle
    Posted in the Math Topics Forum
    Replies: 12
    Last Post: November 8th 2008, 08:44 PM
  4. [SOLVED] Find the area of rectangle ABCD
    Posted in the Geometry Forum
    Replies: 4
    Last Post: September 29th 2008, 05:21 PM
  5. Find rectangle with largest area
    Posted in the Calculus Forum
    Replies: 2
    Last Post: June 21st 2008, 05:22 PM

Search Tags


/mathhelpforum @mathhelpforum