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September 16, 2014

Search: area of a rectangle, i think?

Number of results: 30,002

Math
The first question is this: Helen designs a rectangle with an area of 225 square units. Her rectangle is the largest rectangle (that is, with largest area) with whole-number side lengths that can be made from the perimeter of the rectangle. A. Whay are the length and width of ...
February 25, 2013 by Gabby

math
a rectangle is twice as long as it is wide. if both of its dimensions are increased by 4m, its area is increased by 88m^2 find the dimensions of the original rectangle Original rectangle = w for width and 2w for length. Area = w x 2w Larger rectangle = w+4 for width and 2w+4 ...
November 29, 2006 by samantha

geometry
rectangle a is similar to smaller rectangle b. the scale factor is 5/3. if the area of rectangle a is 150 square inches, what is the area of rectangle b?
March 22, 2012 by josh

Math
If the length of a rectangle is (2x-1)cm and its width is (x+3)cm. How do i write an expression in the form ax^2+bx+c for the area of the rectangle? Given that the area of the rectangle is 294cm^2, determine the value of x and state the dimensions of the rectangle in cms?? ...
June 30, 2009 by Shaw

math
Suppose the area of a rectangle is 36 square inches. Find the Minimum perimeter for a rectangle with this area. Please help asap. Thank you! (so much) We know that A=l*w=36 and P=2(l+w) From the area formula we see that l=36/w Putting this into the perimeter formula we get P=2...
August 31, 2006 by l

Math
A mechanical engineering student wishes to inscribe a rectangle in a quarter circle of radius 2.00 cm. Determine the dimensions of the rectangle that will give it the greatest area. length in cm = height in cm = My attempt on find the relationship between the rectangle and the...
January 29, 2013 by Ashley

Pre-Algebra
A rectange has dimensions of 1 and 6. Another rectangle was drawn from it using a scale factor of 1.5. A. The area of the large rectangle is how many times the area of the small rectangle? B. The perimter of the large rectangle is how many times the perimeter of the small ...
November 9, 2008 by Samantha

Calculus
Given the area of a rectangle is A = LW. If three sides of the rectangle are fixed, I.e. 2W + L = 40, find L and W such that you maximize the area of the rectangle. Is it L=10, W=20?
June 6, 2014 by bex

Algebra
The length of a rectangle is (x+2) inches. The width of the rectangle is (x+1) inches. Write an equation that can be used to determine the area (A) of the rectangle in terms of x. What is the value of x if the area of the rectangle is 56 square inches?
May 16, 2013 by Amber

math
A rectange has dimensions of 1 and 6. Another rectangle was drawn from it using a scale factor of 1.5. A. The area of the large rectangle is how many times the area of the small rectangle? B. The perimter of the large rectangle is how many times the perimeter of the small ...
March 6, 2012 by Jazzy

math
4. the area of a rectangle is 450 m^2. both the length and width of the rectangle are increased by 10%. what is the area of the new rectangle?
January 8, 2012 by Randy

9th grade polynomials
How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.
February 17, 2011 by Corey wicks

Math
Felic built a 4 inch by 8 inch rectangle. A. What is the perimeter of felic's rectangle? My answer is 24 in. B. The perimeter of hanas' rectangle is 2/3 as long as the perimeter of felic's. What is the perimeter of hana's rectangle? My answer is 16 in. C. What is the area of ...
March 31, 2014 by Khrys

math
The leng of the smaller rectangle is 1 inch less than twice its wide. 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 smaller rectangle?
August 17, 2014 by Anonymous

Math help another
Find the area of the composite figure. Square with missing top corner. 12in prarel to 10in top 14in bottom 20in. All of little boxes on the three showm corners. I did this. Find area of rectangle A= lxw 14 x 12 = 168 in. Find triangle area A = 1/2 x b xh A= 1/2 x 12 x 10 = 60...
April 22, 2013 by Tamara

5th grade
For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?
December 1, 2010 by Danielle

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?
August 4, 2011 by Alyssa

derivatives
Applications of derivatives A rectangle has its base on the x axis and its upper two vertices on the parabola y=12 - x^2. What is the largest area the rectangle can have, and what are its dimensions. Support your answer graphically. Thanks. Well, the parabola is symettric ...
November 18, 2006 by Jen

MATH OMG HELP
The base and height of an original rectangle are each increased by 15%. The area of the new rectangle is k/w times the area of the original rectangle. If k and w are relatively prime positive integers, find the value of k + w.
January 21, 2008 by Jujube

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?
May 15, 2011 by Mary

perimeter problems math
janet built a 5-inch ny 7-inch rectangle A:what is the perimeter of janets rectangle? B:the perimeter of olivia's rectangle is 150% as long as janet's. what is the perimeter of olivia's rectangle? C. what is the area of janets rectangle? D.the area of walters rectangle is 6/5 ...
February 21, 2012 by justin

Math
A rectangle is inscribed in a semi circle of radius 2, let x represent half the length of the rectangle. Write an expression for the area of the rectangle in terms of x. Well I know area=length X width. That's about all I know what to do though
January 9, 2014 by Anonymous

solving quadratic equations by factoring
the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.
December 19, 2010 by math1

solving quadratic equations by factoring
the original dimensions of a rectangle were 15 by 20 cm. when both dimensons were decreased by the same amount, the area of the new rectangle is half the area of the original rectangle. find the dimensons of the new rectangle.
December 19, 2010 by math1

Math
The perimeter of rectangle Z is equal to its area.Rectangle Y has the same perimeter as rectangle Z.The length of rectangle Y is 5 inches and width of rectangle Z.
April 26, 2013 by Iveth

math
The area of a rectangle is 100 sq. in. The perimeter of the rectangle is 4o in. A second rectangle has the same area but a different perimeter. Is the second rectangle a square? Explain why or why not.
February 25, 2010 by Anonymous

4th grade math
Two rectangles are each 5 in. wide. The larger rectangle has an area of 35 sq in . and is 2 in longer than the smaller rectangle. What is the area of the smaller rectangle?
February 22, 2011 by Amy

geometry
The height of triangle ACE is 12 and base AE=20. A rectangle is inscribed in triangle ACE as shown in the diagram a) express the rectangle's area as a function of x and y b)Use the fact that triangle ACE is similar to BCD to write y as a function of x. c)express the rectangle'...
August 30, 2011 by jay

math117
The area of a rectangle of length x is given by 3x2 +5x. Find the width of the rectangle. The area of a rectangle with width t is given by 33t - t 2. Factor the expression and determine the length of the rectangle in terms of t length times width=area, so factor out an x to ...
July 2, 2007 by student

Maths
The dimensions of rectangle B are twice the dimensions of rectangle A. The area of rectangle B is 200 cm2. What is the area of rectangle A?
April 4, 2013 by Sanya

Calculus
"A rectangle is inscribed in a semicircle of radius 2 cm. Find the largest area of such a rectangle". There is a diagram, but I think the question makes it clear enough what is going on. I'm having problems finding a relationship that I can work with.
March 9, 2010 by Stuck

math
Triangle ADE is inside rectangle ABCD. Point E is half way between points B and C on the rectangle. Since AB is 8 cm and side AD is 7 cm. 1. what is the area of triangle ADE? 2. what is the ratio of the area of the triangle ABE to the area of triangle ADE? 3. What is the ratio...
April 14, 2013 by natalie

Math
answer to travis has designed a rectangle with an area of 59 square units. his rectangle is the smallest rectangle with whole number side lengths. what are the length and width of the rectangle, explain your reasoning. what is the perimeter of the rectangle? explain your ...
April 10, 2011 by Nadia

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.
April 4, 2011 by susie

math 8th grade
perimeter of a rectangle is 32 in. wnat are the length and width that will give the rectangle the largest possible area? choices are 4in x 12in. ,5in.x 11 in.,7 in.x 9 in. ,8 in. x 8 in. i think 4 in. x 12in
May 14, 2012 by Anonymous

math 5TH GRADE
The area of Walters rectangle is 3/4 the area of Janets.What is the area of Walters rectangle? The area of Janets rectangle is 24in.
March 10, 2011 by arjel

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 ...
February 27, 2013 by Anonymous

CALCULUS
The region R is a rectangle with vertices P(a,lna), Q(a,0), S(3,0), and T(3,lna), where 1<a<3. I found that the expression for the area of the rectangle is f(a) = (ln(a))(3-a). The area of the rectangle is maximized for some c beween 1 and 3. Write the expression you ...
May 5, 2012 by Anonymous

math
The length of a rectangle is 5 in. more than twice its width.? How do I find the width of the rectangle. The length = (2 x width) + 5 inches. Do you have any other information about the rectangle such as the area or the perimeter. I don't think there is enough information here...
July 26, 2006 by Diana

Math
1. The length of a rectangle is 6 inches longer than thrice its width. The area of the rectangle is 57 square inches. Write a quadratic equation for the area of the floor in terms of x. Find the length and width of the rectangle. 2. If 1,500 ft of fencing is available to build...
August 17, 2014 by Annabeth

math
a house has two rooms of equal area. one room is square and the other room a rectangle, four feet narrower and 5ft longer than the square one. find the area of each room? let x = dimensions of the square. Rectangle then is x-4 and x+5 Set areas equal. area of square is x2 area...
November 29, 2006 by mary-beth

Math
Find the Maximum area for the given perimeter of a rectangle. State the length and width of the rectangle. 28 inches Well, finally a calculus problem. Ok, we know that the area for a rectangle is A=l*w and the perimeter is P=2(l+w) In this problem P= 28, so let's express one ...
August 31, 2006 by l

Math
In the figure below, the diagonal line divides the rectangle into halves Which statement about the figure is NOT true? On the rectangle the width is 3cm and the length is 4cm. The line that divides the rectangle is 5cm F. The perimeter of the rectangle is 14cm G. The area of ...
January 30, 2012 by Andrew

maths
A rectangle is divided into 4 parts, A B, C and D. The areas of A: B: C are in the ratio 10:18:5. C is a square with an area of 25cm squared. What is the area of rectangle D?
December 28, 2011 by joi

math
if the area of a small rectangle is sick square feet in the dimensions are doubled then what is the area of a large rectangle explain
February 27, 2013 by yuana

calculus
A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area.
March 2, 2008 by Anonymous

math
I have a question that says one rectangle has a 3x4 centimeter area. If I make another rectangle, what's the area if the scale factor is 4?
November 22, 2011 by Tre

math
the ratio of the lengths of the corresponding sides of two rectangles is 8:3. The area of the larger rectangle is 320 ft^2. What is the area of the smaller rectangle?
June 10, 2012 by Davon

math
After the longer sides of a rectangle are decreased by 25%, the resulting shape is a square of area 576. What is the area of the original rectangle?
September 17, 2013 by Anonymous

geometry
The area of a rectangle is given by A = x2 + 4x 5. Find the value of x if the total area of the rectangle is equal to 7 square units.
January 23, 2011 by Anonymous

math
The scale factor for two similar retangles is 3. If the area of the smaller rectangle is 8m^2, what is the area of the larger rectangle.
October 16, 2012 by Hank

math
The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle
November 6, 2012 by ?

Algebra
How would I complete this problem? Geometry. The area of a rectangle of length x is given by 3x^2 + 5x. Find the width of the rectangle. I think the width is 3x+5 but not sure. Subjects Art Business Computers English Foreign Languages Health Home Economics Mathematics Music ...
June 5, 2007 by Loreal

Algebra
the length of a rectangle is 5m more than twice its width. and the area of the rectangle is 88m^2. find the dimensions of the rectangle.
May 5, 2011 by Shantelle

Math Ratios
The ration of the length of a rectangle to its breadth is 9:4. If the perimeter of the rectangle is 104 cm. find the area of the rectangle.
September 13, 2012 by Dottie

MATH0098
The perimeter of a rectangle is 58yd , and the area of the rectangle is 54yd . Find the dimensions of the rectangle. Length: Width:
February 27, 2013 by Anonymous

Algebra
The length of a rectangle is 1 foot less than twice the width, and the area of the rectangle is 21 ft.. Find the dimensions of the rectangle
September 7, 2014 by Heather

2nd grade math
If you have a rectangle with 24 square units 3 lines down 8 across how can you have a 4 unit rectangle with a perimeter of 8 around the outside also 6 units with a perimeter of 10 in a seprate problem A square of 4, perimeter of 8. What about a 2x2 square? A rectangle of 3x2 ...
May 21, 2007 by Gloria

Algebra
The length of a rectangle is more than double the width, and the area of the rectangle is . Find the dimensions of the rectangle.
December 1, 2013 by Sara

Math
The length of a rectangle is 11 cm more than its width. The area of the rectangle is 2040 cm^2. Find the dimensions of the rectangle.
April 29, 2014 by Ara

Math
The perimeter of rectangle P is 12 feet. The perimeter of rectangle Q is 18 feet. Both rectangles have the same area.Find the area and dimensoin of each rectangle.
April 20, 2011 by Sarah

Math
How do I find the dimensions of a rectangle if the length of the rectangle is 1 yard more than twice its width, and the area of the rectangle is 66 yards^2 .
March 7, 2013 by Terry

math
The area of a rectangle is 77 yd2 , and the length of the rectangle is 10 yd less than three times the width. Find the dimensions of the rectangle.
September 1, 2014 by shonta

geometry
The perimeter of a rectangle is 42m , and the area of the rectangle is 54m^2 . Find the dimensions of the rectangle.
October 28, 2011 by Anonymous

beginning algebra
The length of a rectangle is 1ft more than twice its width, and the area of the rectangle is 28ft^2 . Find the dimensions of the rectangle. l= w=
February 9, 2011 by Rachal

math
The area of a rectangle is 532 square units. Find the length and the width of the rectangle. One side of the rectangle is x+5 and the other is x-4
August 6, 2013 by annaya

Help math
The length of a certain rectangle is quadrupled and the width is tripled. What is the ratio of the area of the new enlarged rectangle to the original rectangle?
December 13, 2013 by Kizzy

math
if the area of a rectangle is 30 square centimeters and the length is 6 centimeters,use the equation 30=6w to find the width w of the rectangle.I don't understand what would be the correct answer I think my aswer doesn't look correct.
September 27, 2010 by philena

Algebra I
Rectangle ABCD has vertices C and d on the x-axis and vertices A and B on part of the parabola y = 9 - x^2 that is above the x-axis. a.) Find the coordinates of A, B, C, and D in terms of x. b.) Determine the Area of the rectangle as a function of x. c.) What is the domain for...
July 28, 2010 by Kate

Geometry
A rectangle has an area of 6 square meters. What will be the area of the rectangle if each side length is increased by a factor 5? A. 11 square meters B. 30 square meters C. 125 square meters D. 150 square meters I think the answer is B
March 2, 2014 by anon

Geometry
If the area of the large rectangle is 147 units squared, what is the perimeter of the shaded area. There is a visual of a large rectangle divided into four smaller ones. One is shaded. The area is given for the other three: 48 and 15 along the top half of the large rectangle ...
August 27, 2014 by Laurel

grade 3 math
1) what is the greates perimeter of a rectangle with an area of 39 square feet? 2) What is the least perimeter of a rectangle with an area of 32 square feet? 3) A rectangle has an area of 42 square inches. Which has a greater perimeter, the rectangle with the dimensions 21 x2 ...
April 29, 2014 by mimi

math
the length of a rectangle is 5cm ...the area of a rectangle is the same as that of a square whose is side measures 4cm..find the width of a rectangle
January 9, 2013 by Ammon

calculus
A rectangle with its base on the x-axis is to be inscribed under the graph of y=2-x^2. Find the height of the rectangle if the area is the largest possible area. (Round to the nearest hundreth)
November 13, 2011 by Sarah

math
The scale factor for two similar rectangles is 3. If the area of the smaller rectangle is 8 m2, what is the area of the larger rectangle? (1 point)24m2 192m2 72m2 108m2
October 30, 2012 by shann

geometry
If the area of Triangle T, sides 5,12, and 13 equals the area of rectangle R, width 3, then what is the perimeter of rectangle R?
April 26, 2009 by Natalie

math
which has the greater area? explain. a) a rectangle with area 0.84 meters square. b) a rectangle with area 8400 centimeters square
March 2, 2012 by junaid

math
one of the two numbers that can be both the perimeter and the area of the same rectangle I am assuming that you are seeking the two rectangles that have the area equal to the perimeter. A 4 x 4 square has a perimeter and area of 16. A 3 x 6 rectangle has a perimeter and area ...
May 25, 2007 by Amanda

algebra
the perimeter of a rectangle is 26yd, and the area of the rectangle is 36yd^2. What are the dimensions of the rectangle?
June 2, 2013 by topaz

Calculus
The region R is a rectangle with vertices P(a,lna), Q(a,0), S(3,0), and T(3,lna), where 1<a<3. A.) Write an expression that gives the area of the rectangle as a function of a. B.) The area of the rectangle is maximized for some c beween 1 and 3. Write the expression you ...
May 5, 2012 by Anonymous

Quadratic Equations
The length of a rectangle is 5 ft more than the width. If the area of the rectangle is 36 sq. ft what are the dimensions of the rectangle? (Please provide steps/explanation to solve this problem.)
March 29, 2009 by purpletree

geometry
given constant perimeter (people),Irene made a rectangle with an area (tables) of 196 sq. units. she finds that this is the largest area (greatest number of tables) possible for the given perimeter. Irene drew a rectangle with an area of 196 sq. units. she finds that this i ...
March 20, 2011 by lily

Calculus
Hello, could someone please help me with this problem? I'm a little stuck with it. Thanks, Isaac A rectangle is to be inscribed with its base on the x-axis and its other two vertices above the x-axis on the parabola y=9-x^2 (a) find the dimensions of the rectangle of largest ...
November 28, 2011 by Isaac

Mathematics-please help quick!!
The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the area of the rectangle. Answers: A=20+x .B=...
June 10, 2012 by Scraffii

Mathematics-please help quick!!
The lenght of a rectangle is 10cm greater than its width. The perimeter of the rectangle is 1m. A.Find the simplest expression for the perimeter for the rectangle if the width is x.B. Find the width of the rectangle. C. Calculate the area of the rectangle. Answers: A=20+x .B=...
June 10, 2012 by Scraffii

Math
I don't understand this quadratic equation: The ratio of the measures of the length and width of a rectangle is 5:7. the area of the rectangle is 1,715 square feet. Find the dimensions of the rectangle.
January 31, 2012 by Elizabeth

Algebra/geometry
a rectangle has a width of 4 cm less than it's length. if a new rectangle is formed by increasing the width 5 cm and decreasing the length 3 cm, the area of this resulting rectangle is 177 cm squared. what are the dimensions of the original rectangle?
March 6, 2011 by Bill

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.
January 29, 2013 by Joseph

Geometry
A rectangle has the same perimeter as a square. If the area of the rectangle is 9 less than the area of the square, the side length of the square is how much longer than the shorter side of the rectangle ?
September 20, 2013 by Anonymous

Areas/Rectangle
Given that the area of the rectangle is 2x^2 + 9x - 5 , determine the length of the rectangle.
January 19, 2011 by Sydney

rectangle
A rectangle has perimeter equal to 28, what is the maximum possible area of this rectangle.
February 25, 2013 by dark rider

rectangle
A rectangle has perimeter equal to 28, what is the maximum possible area of this rectangle.
February 25, 2013 by i could not do it can u??

algebra
The perimeter of a rectangle is 94 ft, and the area of the rectangle is 90ft ^2. What are the dimensions of the rectangle?
June 2, 2013 by topaz

math
the area of a rectangle is 100 square inches. the perimeter of the rectangle is 40 inches. a second rectangle has the same area but a different perimeter. is the second rectangle a square? explain why or why not.
April 13, 2011 by Anonymous

math
The length of a rectangle is 2 inches longer than the width. The area of the rectangle is 56 in^2. Find the dimensions. Also: The length of a rectangle is 3 ft more than the width. The area of the rectangle is 28 ft^2. Find the dimensions.
November 14, 2013 by Shanice M.

Algebra
How do you calculate the area of a rectangle. area of a rectangle is length x width.
August 19, 2007 by Joshua

Math
An isosceles triangle and a rectangle share a base. The area of the rectangle is 4 times the area of the triangle. The area of the triangle is 60 cm^2 and its height is 15 cm. Find the dimensions of the triangle.
February 11, 2011 by Mary

Math
There's a triangle the numbers on each sides are 22 25 and 11 What is it's perimeter and area? Answer: P is 58 A is 345 There's a rectangle the numbers on 2 of the sides says 4 and 1 What is the Perimeter and area? Answer: P is 10 and A is 4 There's a rectangle the numbers are...
January 19, 2012 by Connor

maths
the length of a rectangle is 3 less than 5 times its width. Write a simpified algebriac expression for the perimeter of a rectangle. If the rectangle width is tripled and its length is doubled,the perimeter of new rectangle is 92cm greater than the original perimeter. Find the...
November 24, 2010 by aisha

Math 7
The perimeter of a rectangle is 72 m. The width of the rectangle is 16 m. What is the area of the rectangle?
February 13, 2014 by Anonymous

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