Math

The length of a rectangular field is seven meters less than four times the width. The perimeter is 108 meter. Find the width and length of the field. How do I do this?

  1. 👍
  2. 👎
  3. 👁
  1. 2l+2w=108
    =2(4w-7)+2w=108
    =8w-14+2w=108
    =10w-14=108
    =10w=122
    =w=12.2m
    ----------
    2l+2w=108
    =2l+2(12.2)=108
    =2l+24.4=108
    =2l=83.6
    =l=41.8m

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. math

    A farmer has 90 meters of fencing and would like to use the fencing to create a rectangular garden where one of the sides of the garden is against the side of a barn. Let L represent the varying length of the rectangular garden

  2. Math

    A rectangle field has an area of 300 square meters and a perimeter of 80 meters. What are the length and width of the field? I really need help I don't know the answer.

  3. math

    The length of a rectangular field is 25m more than it width. The perimeter of the field is 450m. What is the actual width and length

  4. Algebra

    A rectangular field is four times as long as it is wide. If the perimeter of the field is 400 yards, what are the fields dimensions? The width of the rectangular field is ____ yards.

  1. Algebra2

    The area of a rectangular field is x^2-x-72 m^2. The length of the field is x+8 m. What is the width of the field in meters?

  2. SECONDARY ALGEBRA

    A rectangular field is to be fenced off with 120 m of fencing materials. the length of the field is x. express the area in square meters of the field as a function of x.

  3. Algebra

    The length of a rectangle is 4 meters less than 3 times the width. The perimeter is 32 meters. Find the width.

  4. math

    A rectangular room is 5 meters longer than it is wide, and its perimeter is 22 meters. a. Letting w represent the width of the rectangle, write an equation that represents the perimeter of the room. = 22 b. Find the width of the

  1. math

    A farmer needs to fence a rectangular piece of land.She wants the length of the field to be 55 feet longer than the width. If she has 1310 feet of fencing material, what should be the length and the width of the field?

  2. Intermediate Algebra

    The plans for a shed call for a rectangular floor with a perimeter of 192 ft. The length is two times the width. Find the length and width. The width is ____ft The length is ____ ft

  3. Maths, Please help

    A rectangular field has a width of x meters. The length of the field is 25m greater than twice the width of the field. The area of the field is 450m² Work out the length of the field. Someone please help me

  4. algebra

    The length of a rectangular playground is 4 meters less than 3 times the width. The perimeter is 64 meters. Write 2 equations that would be used to solve the system.

You can view more similar questions or ask a new question.