math

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

  1. 👍 0
  2. 👎 0
  3. 👁 189
  1. 3W = L

    2W + 2L = 256

    Substitute 3W for L in second equation and solve for W. Insert that value into the first equation and solve for L. Check by inserting both values into the second equation.

    L * W = ?

    1. 👍 1
    2. 👎 0
    posted by PsyDAG
  2. 54

    1. 👍 0
    2. 👎 1

Respond to this Question

First Name

Your Response

Similar Questions

  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.

    asked by zach on February 14, 2012
  2. basic geometric

    10. a rectangle has width the same as a side of a square whose perimeter is 20m. the length of the rectangle is 9m. find the perimeter of this rectangle. 34. The width of a rectangular picture is one-half the length. The perimeter

    asked by vero on March 12, 2007
  3. Math

    Rectangle ABCD is similar to rectangle EFGH. If rectangle ABCD has sides that are 7 times greater than those of rectangle EFGH, what is the relationship between the perimeters of the rectangles? A. The perimeter of rectangle EFGH

    asked by jessica on June 11, 2012
  4. Math Symbols

    Let "p" represent 'the area of rectangle ABCD is 50 square inches'. Let "q" represent 'the perimeter of rectangle ABCD is 30 inches'. Let "r" represent "the length of rectangle ABCD is twice the width" My question: use symbols to

    asked by Kasey on August 21, 2006
  5. math

    Rectangle ABCD is 12 inches long and has a perimeter of 54 inches. Rectangle LMNO is similar to rectangle ABCD and is 2.4 feet long. What is the width of the rectangle LMNO?

    asked by scott on January 27, 2011
  6. Math

    1) Rectangle ABCD has a perimeter of 106 inches. If the width is 7 inches, what is the length? 2) If X=7 inches, Y=11 inches, Z=15 inches, and H=6 inches, what is the area of the triangle?

    asked by Stupid Person on December 23, 2011
  7. MATH

    1. a) On Wednesday, Harry sold 3 times as many candy bars as on Tuesday. On Thursday, he sold 5 times as many bars as on Wednesday. He sold a total of 152 candy bars. How many did he sell each day? b) Bill has 5 times as many

    asked by Mai on March 27, 2019
  8. 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

    asked by Katie on December 5, 2015
  9. College Algrebra Math 133 unti 1 IP 1

    Suppose the width of a rectangle is 5 inches shorter than the length and that the perimeter of the rectangle is 80 inches. The formula for the perimeter of a rectangle is P=2L + 2W. Set up an equation for the perimeter involving

    asked by Dana on May 11, 2013
  10. Algebra 1

    The perimeter of a rectangle equals the sum of the lengths of its four sides. If the width of a rectangle is 4 inches and its perimeter is 36 inches, find the length of the rectangle. The length of the rectangle is ? My answer was

    asked by Austin on August 12, 2012

More Similar Questions