Math

The length of a rectangle is 5 inches less than 3 times the width. The perimeter of the rectangle is 14 inches. Find the length and width of the rectangle.

I did this: Length 3x-5; width 3x
Then I did guess and check and came up with X=2 solving the problem with a perimeter of 14. But, the answer is supposed to be length 4inches, width 3inches.

Please explain what I did wrong. I know the answer but not how to get it.

  1. 👍
  2. 👎
  3. 👁
  4. ℹ️
  5. 🚩
  1. P = 2L + 2W

    14 = 2(3W - 5) + 2W

    14 = 8W - 10

    24 = 8W

    3 = W

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    Ms. Sue
  2. Ok, I get it now. Thank you.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
  3. :-)

    You're welcome.

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩
    👤
    Ms. Sue
  4. ok say if the hight is 6in and the length is 10 and it = 240 is the volume then what is the width

    1. 👍
    2. 👎
    3. ℹ️
    4. 🚩

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math

    The perimeter of a rectangle is 34 feet and the area measures 60 square feet. What are the length and width of the rectangle? (Hint: Use the equations : perimeter = times the sum of the length and the width area = length times

  2. Math 208

    Rectangle Dimensions: The length of a rectangle is 7 inches longer than the width. If the perimeter of the rectangle is 62 inches, find the measures of the length and width.

  3. Math

    The variable W represents the width of a rectangle. The length of the rectangle, L, is 5 less than twice the width. Write an expression for the length of the rectangle in terms of W. Write a simplified expression for the perimeter

  4. math

    The length of a rectangle is 2 inches more than twice its width. If the perimeter of the rectangle is 34 inches, find the dimensions of the rectangle

  1. Math

    The formula for the perimeter of a rectangle is P = 2l + 2w. The length of a rectangle is 3 times its width. Which expression represents the perimeter of the rectangle? Question 3 options: 2 + w(3w) 2 + w(w + 3) 2(3w) + 2w 2(w +

  2. Algebra Homework, HELP!

    1) A rectangle has an area of 297 square inches and a width which is three inches less than four times the length. Find the length and the width of the rectangle. 2) Let x represent the length of the shorter leg in a right

  3. area, perimeter

    the perimeter of rectangle y is equal to its area. rectangle z has the same perimeter as rectangle y. the length of rectangle z is 5 inches and the width is 3 inches. explain how you can find the length and eidth of rectangle y.

  4. algebra1

    The length of a rectangle is twice the width. If the length is increased by 4 inches and the width is decreased by 1 inch, a new rectangle is formed whose perimeter is 198 inches. Find the dimensions of the original rectangle.

  1. math

    The perimeter of rectangle ABCD is 256 inches. It's length is 3 times as long as its width. Find the area of triangle ABC.

  2. geometry

    If the length of a rectangle is twice its width, w, write an expression to represent the perimeter of the rectangle. If the perimeter of the rectangle is 72 inches, what is the length and width of the rectangle?

  3. Algebra

    The perimeter of a rectangle is 46 inches, and the area is 120 square inches. Find the length and width of the rectangle.

  4. algebra

    The perimeter of a rectangle is 106 inches,the length exceeds the width by 7 inches, find the length and the width

View more similar questions or ask a new question.