math

posted by .

The lenght and the width of a rectangle are in the ratio 3:2. If the lenght is increased by 20 and the width is decreased by 5, the ratio of the lenght to the width becomes 2:1. Find the lenght and width of this rectangle.

  • math -

    l/w=3/2
    or w=2l/3

    (l+20)/(w-5)=2
    l+20=2w-10
    l+20=4l/3 -10
    1/3 l=30
    l=90
    w=60

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. basic geometric

    10. a rectangle has width the same as a side of a square whose perimeter is 20m. the length of the rectangle is 9m. find the perimeter of this rectangle. 34. The width of a rectangular picture is one-half the length. The perimeter …
  2. algebra

    The width of a rectangle is 4 meters more then 1/3 its lenght. the perimeter is 64. Find the lenght and width
  3. algebra

    The width of a rectangle is 3ft less than the lenght. The area is 4ft^2. Find the lenght and the width
  4. math

    width to length ratio is 2:3 what is the lenght of the picnic table if the width is 26
  5. algebra

    theperimeter of a rectangle is32 ft. The lenght is 12 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the lenght and y be the width write the first equation …
  6. Mathematics-please help quick!!

    The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the …
  7. Mathematics-please help quick!!

    The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the …
  8. algebra

    The perimeter of a basketball court is 114 meter and the lenght is 6 meter longer than twice the width. What are the lenght and Width. i need help please i am stuck
  9. mathematics

    the lenght of a rectangle is twice its width.If the width is reduced by 1cm and the lenght is also reduced by 2cm,the area will be 15cm(square).Find the dimensions of the original rectangle.
  10. maths

    the lenght of a rectangle exceeds its width by 7 m. if the width is decreased by 3m and the length decreasesd by 10 m the area is decreased by 95 sq. metres find the dimensions of the rectangle.

More Similar Questions