The width of a rectangle is 5 more than twice the length. the perimeter of the rectangle is 28 in. what is the length and width of the rectangle?

Question

CupcakeTwist3676 CupcakeTwist3676

01-11-2017
Mathematics

contestada

The width of a rectangle is 5 more than twice the length. the perimeter of the rectangle is 28 in. what is the length and width of the rectangle?

Respuesta :

Otras preguntas

How does Macbeth come to be Thane of Cawdor? Cite lines from Act I of The Tragedy of Macbeth to support your response.

Find the x-coordinates of all the points where graphs of f and g have parallel tangent lines

Compare the fate of pyruvate in alcohol fermentation and in lactic acid fermentation

What does it mean to write, speak, and listen in a professional manner, why it is so important, and how can your communication affect your career?

In what ways were the world wars a motor for change in the history of the twentieth century?

Which is the best meaning of the italicized word in the phrase “Are fervent with life”? a. frightful c. cautious b. cowardly d. passionate

Yvonne purchased a jacket at Right Price, and the lowest price on the tag was $4. This was the sale price, which was calculated by taking 75% off of the origina

There is a sales tax of $14 on an item that costs $147before tax. A second item costs$84 before tax. What is the sales tax on the second item?

a carpenter is making a brace for a chair to do so she intersects two pieces of wood to make two sets of vertical angles the obtuse angles formed are each 145 d

Mountains that begin when molten material reaches Earth’s surface through a weak area of crust are fault-blocked mountains. Please select the best answer fro

Аноним Аноним · Answer 1 · 2017-11-03T00:43:25+01:00

Perimeter is P = 2l + 2w. From the question you know that w = 2l + 5 and that P = 28. To find l, plug the expression for w into the perimeter equation:

28 = 2l + 2(2l + 5)

28 = 2l + 4l + 10

28 = 6l + 10

18 = 6l

3 = l

Now find w by plugging 3 into its equation - w = 2(3) + 5. w = 11

Lastly, check your work by plugging everything back into the perimeter equation: 28 = 2(3) + 2(11), which is 28 = 6 + 22. Correct! So the length is 3 in and the width is 11 in.