Number of results: 6,480
caculus
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=11-x^2. What are the dimensions of such a rectangle with the greatest possible area? Width=? Height=? Area= height*width=y(2x) Area=(11-x^2)(2x) solve for dArea/dx, set to zero, solve ...
Saturday, May 19, 2007 at 11:55pm by jimmy
math
The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. The area of the shaded region is 86 square inches. What are the dimensions of the smaller rectangle?
Thursday, August 4, 2011 at 4:57pm by Alyssa
Help please? Math!
Let W repersent the width of a rectangle, the length if 7cm more than the width. I have to write the answer in a algebraic expression, but I don't know how too Here is the question: 1. 7cm less than twice the width?
Wednesday, September 15, 2010 at 4:24pm by Not putting it
Nassau
The length of the smaller rectangle at the right is 1 inch less than twice its width. Both the dimensions of the larger rectangle are 2 inches longer than the smaller rectangle. The area of the shaded region is 86 square inches. What is the area of the larger rectangle?
Thursday, August 4, 2011 at 4:57pm by Alyssa
Algebra
A rectangle was 25 cm longer than it was wide. A new rectangle was formed by decreasing the length by 6 cm and decreasing the width by 5 cm. The area of the new rectangle was 585 cm squared. Find the dimensions of the original rectangle.
Tuesday, January 29, 2013 at 5:12pm by Joseph
Algebra Word Problem
A rectangle has dimensions of 12x8inches. If a uniform border is added, then the new rectangle has twice the area of the old rectangle. a) Find the width of the border b) find the new dimensions of the rectangle
Thursday, December 13, 2007 at 12:50am by Ray
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.
Monday, April 4, 2011 at 7:14pm by susie
algebra
The perimeter of a rectangle equals the sume of the lengths of its four sides. If the width of a rectangle is 9 inches and its perimeter is 52 inches, find the length of the rectangle.
Wednesday, January 16, 2013 at 12:46pm by luis barreto
MTH208
The perimeter of a rectangle equals the sum of the lengths of its four sides. If the width of a rectangle is 3 inches and its perimeter is 42 inches, find the length of the rectangle
Sunday, June 24, 2012 at 8:24pm by Carlos Medina
algebra
The perimeter of a rectangle equlas the sum of the lengths of its four sides. If the width of a rectangle is 7 inches and its perimeter is 46 inches, find the length of the rectangle
Monday, January 14, 2013 at 11:13pm by Anonymous
algebra
If the length and width of a rectangle are each multiplied by 3, how would the new area of the rectangle compare with the original area of the same rectangle? would it be 9 times greater?
Sunday, May 15, 2011 at 7:52am by Mary
math
The width of the rectangle is half its length and the perimeter is 42m.caculate the area of the rectangle.find the width and length of perimeter and area.
Thursday, January 12, 2012 at 10:14pm by anna
algerba 2
the length of a rectangle is (x-2)squared and the width is (5x+1) what is the perimeter of the rectangle
Friday, April 19, 2013 at 10:17am by maria
math
Reggie knows the length and width of a rectangle.How can he find the perimeter of the rectangle.
Sunday, April 3, 2011 at 10:53pm by santos
Algebra
The perimeter of a rectangle equals the sum of its lengths of its 4 sides. If the width of a rectangle is 4 inches and its perimeter is 38 inches, find the length of the rectangle.
Saturday, March 16, 2013 at 11:15pm by Libby
geometry
The width of a rectangle is 6 cm less than its length. If the area of the rectangle is 135 square cm, find the dimensions. Then find the perimeter of the rectangle.
Tuesday, November 15, 2011 at 10:10pm by jay
7th grade
one side of a rectangle is 15 centimeters longer than the other side. the perimeter of the rectangle is 94 centimeters. what is the width of the rectangle?
Monday, November 1, 2010 at 5:22pm by jaeden
Algebra
The width of a rectangle is 1/6 the length. If the length and the width are each increased by 4 cm, the new perimeter is 70. Find the original length and width.
Wednesday, October 3, 2012 at 6:58pm by Jayna
geometry
Your question, I assume, is to find the length and width of the rectangle? The diagonal creates 2 right triangles. L = length L - 4 = width By the Pythagorean theorem, d^2 = L^2 + (L - 4)^2 20^2 = L^2 + (L - 4)^2 Solve for L, the length width = L - 4
Tuesday, March 15, 2011 at 9:35pm by Helper
calculus
A rectangle has a perimeter of 10 meters. Express the area A of the rectangle as function of the width x.
Sunday, May 20, 2012 at 11:55am by :)
GeOmEtRy!!!
The area of a rectangle is (6x^2)^2y^3 and the width is 9xy^2. What is the length of the rectangle?
Thursday, February 23, 2012 at 9:09pm by VERONICA
math
help !! the area of a rectangle is 56 square inches. the width of the rectangle is 7 in. what is the length??
Wednesday, March 30, 2011 at 12:27am by santos
calculus
The area of a rectangle is 25cm^2. Express the perimter of the rectangle in terms of its width.
Wednesday, January 19, 2011 at 12:22am by Kristina
Math
the perimeter of a rectangle is 300 feet. what is the width of the rectangle of maximun area?
Saturday, October 23, 2010 at 8:12pm by Anonymous
algebra 1
A rectangle has a perimeter of 12x + 20 and a width of 2x + 8. What is the length of the rectangle?
Tuesday, October 12, 2010 at 5:21pm by shaniqua
geometry
the length of a rectangle is 6m than the width. the area is 55m2 what are the dimensions of the rectangle.
Sunday, September 12, 2010 at 1:19pm by anthony
geometry
the length of a rectangle is 6m than width area is 55m2 what is dimensions of rectangle
Sunday, September 12, 2010 at 1:19pm by anthony
math
The width of a rectangle is 6 cm less than the length. A second rectangle, with a perimeter of 54 cm, is 3 cm wider and 2 cm shorter than the first. What are the dimensions of each rectangle. Please give complete answer :)
Wednesday, August 25, 2010 at 12:27pm by Jade
Geometry
The perimeter of a rectangle is 76 feet. If the width is doubled and the length is halved, the new rectangle will have a perimeter of 62 feet. Find the dimensions of the original rectangle. Define your variables.
Monday, March 8, 2010 at 8:55pm by Albert
College Algebra
For: Assume all values are in inches. L=length of rectangle W=width of rectangle P=perimeter of rectangle P=L + W + L + W The problem states: P=78 L=W + 3 Substitute the above values into the perimeter equation.
Monday, June 16, 2008 at 12:19am by Quidditch
math
side of square --- x area of square = x^2 length of rectangle = +9 width of rectangle = x-6 area of rectangle = (x+9)(x-6) It says the areas are equal so solve (x+9)(x-6) = x^2
Saturday, November 6, 2010 at 8:06am by Reiny
math
The length of a rectangle is 4 times the width. The perimeter is 50cm. Find the length and width. Write the equations. What is the length and width?
Wednesday, March 14, 2012 at 6:49pm by lea
Geometry
The length of the rectangle is 4 more than twice its width and its perimeter is 70m. What are the dimensions of the rectangle?
Tuesday, January 15, 2013 at 8:00am by Anonymous
math
A rectangle has a perimeter of 120 cm. Write the length of the rectangle as a function of its width.
Monday, January 19, 2009 at 8:45pm by lisaa
Calculus
The length of rectangle is increasing at a rate of 8cm/s and its width is increasing at a rate of 3cm/s. When the length is 20cm and the width is 10cm, how fast is the area of the rectangle increasing?
Thursday, October 11, 2012 at 4:28pm by Chelle
algebra
The length of a rectangle is 1 cm longer than its width. If the diagonal of the rectangle is 5 cm, what are the dimensions of the rectangle in centimeters? Enter your answers in the blanks. Enter only the numeric values rounded to the nearest tenth.
Saturday, June 12, 2010 at 9:51pm by Anonymous
math
The area of a rectangle is 24 m2. The length of this rectangle is 6 m. Which equation could be used to determine the width, w?
Friday, January 20, 2012 at 8:25am by alexis
math
A rectangle's length is three times its width. Its perimeter is 67 feet. What are the dimensions of the rectangle?
Wednesday, January 11, 2012 at 8:51pm by MB
algebra
The length of a rectangle is 3x + 4/4x^2-4 and and the width is8x − 8/6 the area of the rectangle is a)1 b)2 c)x+1/x-1 d)4 please help!
Sunday, October 2, 2011 at 3:28pm by tina
Algerbra
The area of a rectangle is 243cm^2. The length is three times greater than the width. What are the dimensions of the rectangle?
Sunday, October 2, 2011 at 11:33am by Leigh
Algebra
The length of a rectangle is three times its width. If the area of the rectangle is 300cm, find its perimeter.
Thursday, April 21, 2011 at 11:34pm by Shay
Algebra
The length of a rectangle is six times its width. If the perimeter of the rectangle is 140ft, find its area.
Thursday, April 21, 2011 at 8:07pm by Shay
math
A rectangle has a perimeter of 24 and an area of 35 square feet. What is the length and width of the rectangle?
Wednesday, February 23, 2011 at 8:17pm by Jess
Math
The length of a rectangle is twice its width if the area of the rectangle is 200 m squared, find its perimeter.
Monday, January 17, 2011 at 8:46pm by Joseph
Math
If the length of a rectangle is increased by 120%, and its width is decreased by 20%, what happens to the area of the rectangle.
Monday, July 19, 2010 at 10:25pm by Pauline
Algebra
A rectangle has an area given by A=x^2+7x+2. Find expressions for the possible length and width of the rectangle.
Tuesday, February 16, 2010 at 10:41am by Kristen
math 8th grade
the width of a rectangle is 2cm.the perimeter of the recangle is 16cm. what is the length of the rectangle?
Tuesday, October 14, 2008 at 8:16pm by hannah
geometry
A dartboard consists of a circle inside a rectangle. the diameter of the circle equals the width of the rectangle. if the length of the rectangle is 20 units and its area is 160 squares units, what is the approximate probability that a dart that lands inside the rectangle will...
Tuesday, August 23, 2011 at 5:28pm by Anonymous
algebra
Two rectangles have the same width. The length of one is 1 foot longer than the width. The length of the other is 2 feet longer than the width. The larger rectangle has 5 more square feet than the smaller. What is the width of the rectangles
Thursday, January 6, 2011 at 10:45am by Anonymous
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?
Thursday, January 27, 2011 at 7:52pm by scott
math
the length of a rectangle is 5cm longer than its width and its area is 66cm square. find the perimeter of the rectangle
Monday, February 4, 2013 at 7:55am by ken
Math
The length of a rectangle is 2 more than twice its width. If the area of the rectangle is 24 sq. m., find its dimensions.
Friday, July 27, 2012 at 5:58am by Bianca
Algebra II
A rectangle’s length is one greater than its width and its area is 30 in2. What are the dimensions of the rectangle?
Saturday, July 2, 2011 at 4:12pm by David
pre calculus
The perimeter of a rectangle is 480 meters and its length is 1.5 times its width. find the dimensions of the rectangle.
Wednesday, January 7, 2009 at 8:27pm by nichole
math
The perimeter of a rectangle is to be no greater than 300 in., and the length must be 125 in. Find the maximum width of the rectangle.
Tuesday, January 29, 2008 at 9:59pm by carly
Maths
A rectangle has legth & width in the ratio of 3:2.If the length is increased by 8 & width is increased by 50%.The ratio of new perimeter to origial perimeter is 8:5.Find the area of new rectangle.
Wednesday, November 24, 2010 at 9:15am by JAZZY
Math
The length of a rectangle is three more than twice the width. If the width is five what is the perimeter?
Friday, November 16, 2012 at 3:06pm by LP
math
the area of a rectangle is 60cm.the length is 11cm more than the width. find the width.
Monday, November 1, 2010 at 5:02am by sophie
Math.. sorry for posting so many, I just don't get
Let W repersent the width of a rectangle, the length is 7cm more then the width A. 7cm more than four times the width How do I write that into an algebraic expression?
Wednesday, September 15, 2010 at 3:56pm by Dawn
Algebra
length of a rectangle is 5y more than twice its width and area of the rectangle is 42 yards ^2, find the dimensions
Monday, November 19, 2012 at 2:18pm by Brian
math
Please show me how to solve: The length of a rectangle is 3 times the width. The perimeter is 44 cm. What are the dimensions of the rectangle?
Friday, December 30, 2011 at 10:26am by Jane
geometry
A rectangle has a width of 4x+2 and a length of 2x-5. write a function that represents the prime of th rectangle. then find the pimeter if x=7
Monday, March 21, 2011 at 4:28pm by gabby
algebra2/trig
the length of a rectangle is 2x+4/(x^2-9) and its width is 3/(x-3). express the perimeter of the rectangle as a single fraction in simplest form.
Saturday, February 26, 2011 at 11:21am by jackie
geometry
The width and height of a rectangle are in the ratio 5:1 and the perimeter is 72 inches. Find the area of the rectangle.
Sunday, June 13, 2010 at 12:50pm by check fast plz
algebra
If the lenght of a rectangle is 15 inches longer than its width whats an equation to represent the area of the rectangle?
Wednesday, January 6, 2010 at 4:13pm by LC Clark
math
The length of a rectangle is four times its width. If the perimeter of the rectangle is 50cm. find its area. how do i set this up?
Thursday, October 1, 2009 at 8:30pm by dan
Algebra
A rectangle has a width of 2(square root of 5)and an area of 50 cm^2. Find the length of the rectangle. Does anyone know how to explain this problem?
Tuesday, April 1, 2008 at 6:01pm by Casey
MATH
I sketched it the following way: a square joined to the width of the rectangle on the left side A semi-circle on top with diameter along the length of the rectangle. A semi-circle at the right side of the rectangle with diameter along the width of the rectangle. Area of square...
Friday, December 23, 2011 at 6:42pm by Reiny
algebra II
The length of a rectangle is three more than twice its width. The area is 65 m^2. What is its width?
Sunday, July 3, 2011 at 3:03pm by Sean
algebra
The area of a rectangle is 72 in^2. The width is 6 inches greater than the length. Which expression represents? the width? a) w = 1 * 6 b) w = 1 + 6 c) w = 1 - 6 d) w = 6 - 1
Thursday, June 3, 2010 at 1:06pm by kim
Maths
The length of a rectangle is 5cm more than its width, if the perimeter is 58 cm, calculate its width
Tuesday, February 9, 2010 at 2:15am by Jermaine
Math
The length of a rectangle is twice the width. The area is 18yrd squared. Find the lenght and the width.
Monday, October 5, 2009 at 8:29pm by Rmz
math
rectangle A has length 12 cm and width 6 cm and while rectangle B has llength 8 cm and width 5 cm .find the ratio of the size of and angle of A to the size of an angle of B
Friday, January 7, 2011 at 4:56am by maya
Math. fast please!
The length of a rectangle is 3 cm and the width is 2 cm. find the length of the diagonal. Is there a formula to do this? The length of a rectangle is 3 cm and the width is 2 cm. find the length of the diagonal. Is there a formula to do this? The diagonal D and each pair of ...
Friday, June 1, 2007 at 9:09am by Emily
math
the length of a rectangle is 1 cm less than twice its width. the area is 28 cm squared. find the dimensions of hte rectangle. Just translate the English into "math" "the length of a rectangle is 1 cm less than twice its width" l=2w-1 "the area is 28&...
Tuesday, May 8, 2007 at 8:55pm by anonymous
Algebra
The length of a rectangle is one unit more than its width. If the area is 30 square units, find the dimensions of the rectangle.
Wednesday, August 22, 2012 at 10:22pm by Anonymous
Algebra 8th grade
The length of a rectangle is twice its width. If the area is 30 square units, find the dimensions of the rectangle.
Wednesday, August 22, 2012 at 9:57pm by Anonymous
pre calc
The length of a rectangle is three times its width. If the area of the rectangle is 45 ayrds squared , find its perimeter.
Thursday, August 4, 2011 at 1:06pm by manny
math
a rectangle has length which is twice the width. if the diagonal is the 5 times the square root of 5 meters long, find the perimeter of the rectangle.
Tuesday, March 1, 2011 at 2:45am by ed
MATH-HELP
1.THE PERIMETER OF A RECTANGLE IS TO BE NO GREATER THAN 300IN.,AN THE LENGTH MUST BE 125IN.FIND THE MAXIUM WIDTH OF THE RECTANGLE. 2. 3X-2Y=6
Sunday, December 9, 2007 at 11:16am by stacy
algebra II
The length of a rectangle is three more than twice its width. The area is 65 m2. What is its width?
Sunday, July 3, 2011 at 2:47pm by Nicole
algebra
What is the width of a rectangle with a perimeter of 70 feet if its length is 1 foot? 2 feet? L.feet? perimeter = 2(length + width) If perimeter = 70 then 35= length + width Now substitute 1,2,and L and solve for width. how do you find the L. feet? L is supposed to be any ...
Tuesday, September 12, 2006 at 1:22am by christine
math
A right rectangle and a right triangle prism have the same height. If the lenght of the side of the rectangle base is twice the width, explain how to determine the area of the triangular base in terms of the rectangle base length.
Sunday, February 28, 2010 at 9:35am by Donna
math
a right rectangle and a right triangle prism have the same height. If the lenght of the side of the rectangle base is twice the width, explain how to determine the area of the triangular base in terms of the rectangle base length.
Saturday, February 27, 2010 at 5:01pm by Donna
Math ( Algebra 1 )
Two rectangles have the same width. The length of one is 2 feet longer than the width. The length of the other is 4 feet longer than the width. The larger rectangle has 8 more square feet than the smaller. What is the width of the rectangles?
Thursday, July 22, 2010 at 9:37am by Tia
calculus
The width of a rectangle is measured as 12.3 cm, while the length is measured as 28.8 cm. The width measurement could be off by 1.2 cm, and the length could be off by .04 cm. Estimate the maximum possible error in calculating the area of the rectangle.
Friday, December 9, 2011 at 3:01pm by Jane
calc
can you just show me how to set this up? or a formula that could help? im confused. The length of a rectangle is increasing at 3 ft/min and the width is decreasing at 2 ft/min. When the length is 50 ft and the width is 20 ft, at what rate is the rectangle decreasing?
Sunday, January 2, 2011 at 11:32am by bekah
algebra
the primeter of a rectangle is 24ft. the length is 2 ft longer than the width. Find the dimensions. Write a system of linear equations and solve the resulting system. Let x be the length and y be the width. Is the answer for the lenght 16ft and 8ft for the width?
Tuesday, March 5, 2013 at 6:33pm by ashley
math
Two rectangles have the same width. The length of one is 2 feet longer than the width. The length of the other is 4 feet longer than the width. The larger rectangle has 8 more square feet than the smaller. What is the width of the rectangles?
Friday, May 17, 2013 at 7:21am by tajuan
algebra 1
one more question... the length of a rectangle is 3 times the width. the area is 108 cm squared. find the dimension of the rectangle.
Tuesday, April 2, 2013 at 9:49pm by suzy
algebra
The length of a certain rectangle is 4 m greater than five times it's width. What are the dimensions of the rectangle if its perimeter is 20m??? please help i have no idea how to do this!
Thursday, September 29, 2011 at 3:46pm by Trisha
geometry
The Perimeter of a rectangle is 600. The length of the rectangle is 2 more than 3 times the width. How do i turn this into an equation without solving it?? Please and thank you!!
Thursday, April 1, 2010 at 4:40pm by Miss J.
algebra
1. What must be added to p to produce q? 2. What is the perimeter of the rectangle if the length is 2x-3y and the width is x+2y? What is the area? 3. What must be subtracted to 7y to leave -5y+2z? 1. q = 1 - p 2. Perimeter of rectangle = 2 length + 2 width. Area is length ...
Wednesday, July 18, 2007 at 9:02am by klar maesen
Algebra 1
This is a five step problem: The width of a rectangle is 6 cm less than the length. A second rectangle, with a perimeter of 54 cm, is 3 cm wider and 2 cm shorter than the first. What are the dimensions of each rectangle. I just don't understand how to write the equation, ...
Thursday, November 15, 2007 at 4:41pm by Elizabeth
math
a rectangle has a perimeter equal to circumference of a circle of radius 3. if the width of the rectangle is 3, what is the length? a) 3pi-3 b) 4.5pi-3 c)6pi-3 d)9pi-3 e)cannot be determined 3*2*pi=3+3+2x where x=side of rectangle 6pi-6=2x 3pi-3=x
Thursday, June 23, 2005 at 6:28pm by Christine
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 ...
Monday, August 21, 2006 at 9:28pm by Kasey
algebra
I'll work with the width, since the letter l and the digit 1 look similar. if the length is 3 more than the width, w(w+3) = 54 w^2 + 3w = 54 w^2 + 3w - 54 = 0 (w+9)(w-6) = 0 w=6 (can't have negative width) the rectangle is 6x9
Wednesday, April 4, 2012 at 2:34pm by Steve
MATH0098
The length of a rectangle is 3ft more than twice its width, and the area of the rectangle is 54ft^2 . Find the dimensions of the rectangle. The other problem worked but how do you SOLVE it. I need to be able to do similar problems. I know the factors multiply to get the area ...
Wednesday, February 27, 2013 at 6:37pm by Anonymous
Calculus
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola y=2-x^2 What are the dimensions of such a rectangle with the greatest possible area? Width=? Height=?
Monday, June 22, 2009 at 12:57am by Z32
more math!
A rectangle is inscribed with its base on the x-axis and its upper corners on the parabola . What are the width and height of such a rectangle with the greatest possible area?
Sunday, November 4, 2007 at 12:19pm by Anonymous
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