math

the length of a rectangle exceed its breadth by 4cm.if length and breadth are incresed by 3cm the aera of the new reactangle will be 81cm more then that of the given reactngle.then
a)length of the given rectangle is?
b)breath of the given rectangle is?
c)area of new angle is?

  1. 👍 0
  2. 👎 0
  3. 👁 102
asked by surya
  1. now: w and w+4, area = w(w+4)
    after growth, we have

    (w+3)(w+4+3) = w(w+3)+81
    w^2+10w+21 = w^2+3w+81
    7w = 60
    w = 60/7

    Now you can figure all the dimensions.

    1. 👍 0
    2. 👎 0
    posted by Steve

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    the length of a rectangle exceeds its breadth by 4cm. The length and breadth are increased by 3 cm .The area of the new rectangle will be 81cm square more than the given rectangle .Find the dimensions of the given rectangle?

    asked by TUHITUHI on August 14, 2012
  2. linear-equations-in-one-variable

    the length of a rectangle exceeds its breadth by 4 cm. if length and breadth are each increased by 3 cm, the area of the new rectangle will be 81 cm sqsq morthan that of the given rectangle. find the length and breadth of the

    asked by Anonymous on May 24, 2016
  3. algebra

    1. The lenght of rectangle is greater than its breadth by 2 cm.If the length is increased by 4 cm and the breadth decreased by 3 cm ,the area remains th same . Find length and breadth of the rectangle ?

    asked by sally on June 10, 2008
  4. Math,Ratio

    the length of a rectangle is 6times as long as its breadth. a.) what fraction of the perimeter of the rectangle is the length of the rectangle? b.) find the ratio of the length of the rectangle to its breadth and to its perimeter.

    asked by Da S on December 26, 2011
  5. Math

    a field has a rectangular shape. the length is 10 m longer than 3 times the breadth. if the length is decreased 50m and breath is increased by 4m, the length will be twice the breadth. determine the length and breadth

    asked by Silindokuhle on March 27, 2019
  6. Maths

    The length and breadth of a rectangle are in the ration 8:5. The length is 10.5 centimeters more than the breadth. What are the length and breads of the rectangle? Kindly give steps also.

    asked by Sunil on July 14, 2011
  7. maths-urgent

    a metal block of length 4cm ,breadth 3cm and height 2.5 weighs 500g.what is the mass of a block of length 5cm,breadth 4cm made of the same metal.

    asked by manpreet on January 7, 2013
  8. math

    The length and the breadth of a rectangle are rounded off to the nearest centimetre.The perimeter of the rectangle is 26cm.What are the possible values of its length and breadth.

    asked by aarthi on October 21, 2012
  9. math

    The length and the breadth of a rectangle are rounded off to the nearest centimetre.The perimeter of the rectangle is 26cm.What are the possible values of its length and breadth.

    asked by aarthi on October 21, 2012
  10. math

    If the length and breadth of a rectangle are increased by 3m and 2m,respectively the area would increase by 52 sq.m.If the length and breadth are decreased by 2m and 3m,respectively the area would decreased by 43sq.m.Find the

    asked by arya on August 16, 2018

More Similar Questions