gr10 math

posted by .

The playing surface in the game of curling is a rectangular sheet of ice with an area of about 225 m^2. The width is about 40m less than the length. Find the approximate dimensions of the playing surface.
How would i solve this?

  • gr10 math -

    Length = L meters.
    Width = (L-40) Meters.

    L * (L-40) = 225m^2,
    L^2 - 40L = 225,
    L^2 - 40L - 225 = 0,
    (L-5)(L+45) = 0,

  • gr10 math -

    Length = L meters.
    Width = (L-40) Meters.

    L * (L-40) = 225m^2,
    L^2 - 40L = 225,
    L^2 - 40L - 225 = 0,
    (L+5)(L-45) = 0,

    L+5 = 0,
    L = -5.

    L-45 = 0,
    L=45.
    Choose positive value of L:
    L = 45m = Length.

    Width = L-40 = 45-40 = 5m.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. math

    The length of a rectangular playing field is 5ft. less than twice its width. If the perimeter of the playing field is 230ft, find the lenght and width of the field. 2W+2L= perimeter = 230 L=2W-5 ============ Solve these simultaneous …
  2. algebra help

    I am really confused on this question can some one help me out please the length of a rectangular playing field is 5 ft less than twice its width If the perimeter of the playing field is 230 ft. find the length and width of the field. …
  3. Geometry

    The length of a rectangular playing feild is 5ft lessthan twice the width. If the perimeter of the playing field is 230ft, what is the length of the playing field. x=length y=width we know: 2x+2y=230 x+5=2y Solve using systems. Easiest …
  4. math

    the length of a rectangular playing field is 5ft less than twice its width. If the perimeter is of the playing field is 230ft, find the lenght and width of the field. How would I even begin to set up the equatin let alone solve the …
  5. math

    If your expected value when playing a $1 game of chance is -$0.06. How much should you have netted after playing the game 130 times?
  6. algerbra 2

    the perimeter of the rectangular playing field is 462 yards. The length of the field is 5 yards less than the triple width. What are the dimensions of the playing field.
  7. math

    A rectangle has an area about 225m^2. the width is about 40m less than the length. Find the approximate dimensions of the playing surface. use factoring.
  8. Math

    Find the surface area of rectangular pyramids 1. Length= 1.15ft Width=0.82 ft Height of the slanted face =3.17ft Surface Area=7.1879ft^2 Formula for Rectangular Pyramid Surface Area : B+1/2pl B=area of base p=perimeter of base l=height …
  9. Math

    A cylinder of curved surface area 1250m² is formed from a rectangular metallic sheet .Find the dimensions of the rectangular sheet I its length is double its breadth?
  10. Math

    3. All faces of a table top with the given dimensions (width:20, length:22, height:1)are going to be painted. Which of the following is the surface area of the table top?

More Similar Questions