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Math Help - help please with area

  1. #1
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    help please with area

    a rectangular room is 6.5 meters long and wide. the room has a border 1 meter wide which is intended to surround a carpet calculate

    1 the area of boarder
    2 the total cost of carpet if 1 square meter cost 6.50
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  2. #2
    Senior Member OReilly's Avatar
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    Quote Originally Posted by sjallim View Post
    a rectangular room is 6.5 meters long and wide. the room has a border 1 meter wide which is intended to surround a carpet calculate

    1 the area of boarder
    2 the total cost of carpet if 1 square meter cost 6.50

    Area of room is 6.5* 6.5 = 42.25 m^2.

    Area of carpet is 5.5 * 5.5 = 30.25 m^2.

    1) Area of border is 42.25 m^2- 30.25 m^2 = 12 m^2.
    2) Total cost of carpet is 6.50 * 12 m^2 = 78
    Last edited by OReilly; October 19th 2006 at 02:01 PM. Reason: Typo
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  3. #3
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    Quote Originally Posted by sjallim View Post
    a rectangular room is 6.5 meters long and wide. the room has a border 1 meter wide which is intended to surround a carpet calculate

    1 the area of boarder
    2 the total cost of carpet if 1 square meter cost 6.50
    Total area is 13/2 * 13/2 = 169/4 (42.25).

    With border, 5.5 x 5.5 meters since its 1 meter wide.

    11/2 * 11/2 = 121/4 (30.25);

    Thus, area of border is: total - area with border

    169/4 - 121/4 = 12 square meters

    2.) 12 * 6.5 = $78 (total cost of carpet if 1 square meter costs $6.50).

    Try to draw a picture. As you progress through Mathematics, pictures become crucial later on.
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  4. #4
    Senior Member OReilly's Avatar
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    Quote Originally Posted by AfterShock View Post

    2.) 12 * 6.5 = $78 (total cost of carpet if 1 square meter costs $6.50).

    Small correction. It's never mentioned that currency is dollar. Infact no currency is mentioned. Maybe it's Euro, Pound, Sheep, Cow...!
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