basic geometric

The width of a rectangle is 6 centimeters less than the lenght. The perimeter is 64 centimeteres . would you please help me, answer these work. than you.

L = length
W = width
================
eqn 1:
2L + 2W = perimeter = 64 cm

eqn 2:
W+6cm = L
Solve the two equations simultaneously for W and L.
Post your work if you get stuck.

Well I don't know How to get it if I have to multiply or od i 2L + 2w what do I do I' m sorry but have so much trouble do in these work

You need to read your text or your notes on how to solve simultaneous equations. Basically, you solve for L in terms of W to eliminate one of the unknowns, then solve for that unknown.

well i only have the the question and that it these is what is in the book . Two angles of a triangle are 40 degrees and 62 degrees; what is the third angle's measure?


the width of a rectangle is 6 centimeters than the length . the perimeter is 64 centimeters . zI soryy but that's all i have in my book.

2L + 2W = 64cm

W + 6cm = L

substitue the value of L back into the first formula.

2(W + 6cm)+ 2W = 64cm
2W + 12cm + 2W = 64cm
4W + 12cm = 64cm
4W = 64cm - 12cm
4W = 52cm
W = 52cm/4
W= 13cm

therefore L = W + 6cm

substitue the value of W into the equation above to find the value of L.

L = 13cm + 6cm
L = 19cm

  1. 👍
  2. 👎
  3. 👁

Respond to this Question

First Name

Your Response

Similar Questions

  1. Math asap

    2.David wants to build a pen for his goat. He wants the area of the pen to be 48 square feet. If the length and width of the pen are whole numbers, which of the following could be the perimeter of the pen? A.P = 26 ft B.P = 28 ft

  2. 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 +

  3. math

    the length of a rectangle is 23 centimeters less than five times its width. Its area is 42 square centimeters. Find the dimensions of the rectangle

  4. Math (2nd Try)

    A rectangle has a length of 6x^3 y^2 - 1 and a width of 3xy + 2. The formula for the perimeter of a rectangle is P=2l + 2w, where l is the length and w is the width. What is the perimeter of the rectangle? Simplify your answer.

  1. Calculus

    A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 30ft, find the dimensions of the window so

  2. Algebra

    The length of a rectangle is 8 centimeters less than three times its width. Its area is 35 square centimeters. Find the dimensions of the rectangle

  3. Algebra

    The length of a rectangle is 4 centimeters less than its width. What are the dimensions of the rectangle if its area is 117 square​ centimeters?

  4. algebra 1

    1) the width of a rectangle is 33 centimeters. the perimeter is at least 776 centimeters. write an inequality to find the length of the rectangle. a. 33+ L≤ 776 b. 33+L≥776 c. 2(33)+2L≤776 d. 2(33)+2L≥776 D

  1. 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

  2. math

    the length of a rectangle is 5 ft more than twice the width. a)if x represents the width of the rctangle, represent the perimeter of the rectangle in terms of x. b) if the perimeter if the rectangle is 2 ft more than eight times

  3. math

    A RECTANGLE HAS A WIDTH OF X CENTIMETERS AND A PERIMETER OF 8X CENTIMETERS. A SQUARE HAS SIDES OF LENGTH 1/4 THAT OF THE RECTANGLE A) FIND THE LENGTH OF THE RECTANGLE B) FIND THE PERIMETER OF THE SQUARE C) FIND HOW MANY

  4. Math

    The area of a rectangle is shown below The area of the rectangle is 56 Which of the following are possible values for the length and width of the rectangle? A.length=6cm and width=9cm B.length=7cm and width=8cm C.length=14cm and

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