# Determine the length and breadth of a rectangle if the length is 3cm less than twice the breadth, and the perimeter is 18

40,002 questions, page 31

the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the length of side #1. how long is each side

asked by dayday on December 10, 2010
2. ## Math

At the same time of day a cable pole and a yard stick cast shadows of 20 ft. and 4 ft. persfectively as shown in the diargram below. if the angle of elevation of the sun is the same for both the cable pole and the yard stick determine the height od the

asked by Noelia on March 7, 2007
3. ## Physics

A uniform beam of mass 2kg and length 4cm is rotated about an axis 8cm from one end.Determine it's moment of inertia

asked by Bill on May 27, 2018
4. ## physics

Determine the frequency and period for a pendulum of length 250cm, mass of 500g, and amplitude of 25cm I don't understand how to do this, help would be appreciated! Thank you

asked by Angela on May 1, 2017
5. ## Calculus 2

Suppose that a spring has a natural length of 25 ​cm, and that 8 J of work is needed to stretch from a length of 50 cm to 80 cm. How far beyond its natural length will a force of 32 N keep the spring​ stretched? **I've tried calculating the spring

asked by David on April 25, 2016
6. ## math

A farmer has 110 metres of fencing to fence off a rectangular area. Part of one side is a wall of length 15m. Find the dimensions of the ﬁeld that give the maximum area. Answers: length and width = 31,25m Thank you so much for a huge help.

asked by Lucas on October 22, 2013
7. ## math

A farmer has 90 meters of fencing and would like to use the fencing to create a rectangular garden where one of the sides of the garden is against the side of a barn. Let L represent the varying length of the rectangular garden (in meters) and let A

asked by melissa on September 2, 2018
8. ## math;)

a kitchen is shaped like a rectangle with dimensions of 11 1/2 ft. by 9 1/2 ft. the floor of the room is made of square tiles with a side length of 1.2 ft. What is the number of tiles that will cover the kitchen floor?

asked by May on February 9, 2014
9. ## Math

A school is fencing in a rectangular area for a playground. It plans to enclose the playground using fencing on three sides (One length is a wall) The school has budgeted enough money for 75 ft of fencing material and would like to make a playground with

asked by Jane on February 12, 2012
10. ## Music Physics

Given that the oboe's lowest note is B flat 3 and its length approximately 64 cm, what length would you expect for the bassoon, whose lowest note is B flat 1? What length for the contrabassoon, lowest note b flat 0?

asked by AAA on April 19, 2012
11. ## physics

Find the center of mass of a rectangular plate of length 10 cm and width 39 cm. The mass density varies linearly along the length. At one end, it is 8 g/cm2; at the other end, it is 18 g/cm2. (Assume the x-axis begins at the 8 g/cm2 edge and extends along

asked by mymi on October 11, 2011
12. ## math

Can I gt some help on these questions! 1.Research subjects that are divided up based on gender, age, etc. to be compared to people of the same group is what type of design experiment? 2. A biologist collects a sample of 50 snakes. The snakes have a mean

asked by mysterychicken on June 20, 2013
13. ## calculus

Find the rate of change of area in respect to temperature of a rectangle. Its a steel plate that expands when heated. I have to find that rate of change when width is 1.7cm and length is 2.9. dl/dt=1.0 x 10^-5 (this is an exponent...) and dw/dt=8.0 x 10^-6

asked by Liz on March 6, 2011
14. ## statistic

One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within ±0.005 inch of the length specified by

asked by Anonymous on January 12, 2012
15. ## math

Lily's kitten weighs 1/3 pound. Caroline's kitten wiehs more than Lily's kitten.Which fraction could describe how much Caroline's kitten weighs? 1/5 1/4 1/3 1/2 1/2? Dsean is making a line of screws. Each screw is 3cm. If Dsean makes a line of 20

asked by NrGliight on May 8, 2012
16. ## Algebra 2

Can you help me set these up? 1.When 0.5cm was planed off each of the six faces of a wooden cube, its volume decreased by 169cm^3. Find its new volume. 2. The width, length, and diagonal of a rectangle are consecutive even integers. Find the integers

asked by Jessica on September 16, 2010
17. ## Math intermediate algebra

The perimeter of a triangle is 33 inches. The sum of the length of the longest side and twice the length of the shortest side is 31 inches. Twice the length of the longest side minus the sum of the lengths of the other sides is 12 inches. Find the lengths

asked by Jack on April 10, 2017
18. ## math

An engineer created a scale drawing of a footbridge. The height of the actual footbridge is 10 feet (ft), and the length is 44 feet. The footbridge in the scale drawing is inches (in.) in length. Find the scale the engineer uses for the scale drawing. Then

asked by perriona on January 19, 2016

To find the image length, of a 4-foot-tall object in a spherical mirror with a focal length of 2 feet, L=4(2/o-2)^2 can be used, where 2 is the distance, in feet, of the object from the mirror. What is the image length of the object when it is 1.5 feet

asked by Anonymous on August 22, 2008
20. ## Math

In the US shoe sizes and foot length are related byt he formula s=3f-24 where s represents the shoe size and f represents the foot in length in inches Solve this formula for f, foot length in terms of s, shoe size

asked by M on November 3, 2014
21. ## Algebra 1

A box shaped like a rectangle prism has a height of 17 inches and a volume of 2,720 in^2. The length is 4 inches greater than twice the width. What is the width of the box?

asked by Steve on February 11, 2015
22. ## mathematics

an equilateral triangle has a equal perimeter of a rectangle whose length is 12 meter and whose width is 8.7 meter fined the measurement of the side of the equilateral triangle.

asked by michael on January 11, 2012

True or false If y =ax+b then DeltaY/DeltaX = dy/dx If Y= x+c then dy = dx If you can measure the length and width of a rectangle correct within .1 cm, then the calculated area will be correct within .1 cm as well. I have True for the first 2 and false for

asked by Amber on October 26, 2016
24. ## MATH

The length of the house is 50 feet, the width is 30 feet, and from the ground to the gable (the height of the rectangle) is 10 feet. The height of the triangular prism on top is 6.5 feet.

asked by Anonymous on June 30, 2011
25. ## Challenge Problems - Math

Please help, even if you only know 1 answer. 1. The length of each side of rectangle R is an integer, and the area of R is 2009. What is the largest possible perimeter of R? 2. If i place all three operational symbols +, -, X in all possible way into the

asked by D on March 30, 2009
26. ## Math Challenge

Please help, even if you only know 1 answer. 1. The length of each side of rectangle R is an integer, and the area of R is 2009. What is the largest possible perimeter of R? 2. If i place all three operational symbols +, -, x, in all possible way into the

asked by annon on March 30, 2009
27. ## algebra

Thee area of the rectangle athletic field represented by the expressio 25y^2-4z^2 square meters. Write an algebriac expression to represent one possible set of dimensions(in the sense''length times width'')of the athletic field. include units with the

asked by Liz on February 11, 2011
28. ## calculus

A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 104 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

asked by Anonymous on November 15, 2011
29. ## physics

an ideal spring of negligible mass is 12.00 cm long when noting is attached to it. When you hang a 3.15kg weight from it, you measures its length to be 13.40 cm. if you wanted to store 10.0 J of potential energy in this spring, what would be its total

asked by zianna on August 22, 2012
30. ## physics

an ideal spring of negligible mass is 12.00 cm long when noting is attached to it. When you hang a 3.15kg weight from it, you measures its length to be 13.40 cm. if you wanted to store 10.0 J of potential energy in this spring, what would be its total

asked by zianna on August 22, 2012
31. ## Math

A parcel delivery service will deliver packages only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 112 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

asked by Rokas on April 15, 2019
32. ## Math

A uniform bar 1.100 metres in length and having a cross sectional area of 19.500cm square is subject to a loading of 5050.000 newtons. This load causes an extension to the bar length of 2.610mm.Calculate the stress and strain produced

asked by Barry Morgan on October 5, 2014
33. ## Calculus

A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 112 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

asked by Cleepople on April 15, 2019
34. ## Calculus

A parcel delivery service will deliver a package only if the length plus the girth (distance around, taken perpendicular to the length) does not exceed 100 inches. Find the maximum volume of a rectangular box with square ends that satisfies the delivery

asked by Anonymous on November 1, 2011
35. ## Trig

If it helps the answer according to this ACT compass sample test questions print out is 6.93. How to solve it is the question ... C is a 90 degree angle. AB is 8 and the hypotenuse. AC is the base .... we don't know it's length. It's on page 14 if you

asked by Joe on May 13, 2014
36. ## math

ben wants to decorate his bedroom wall with colored square tiles of the same size. The area he wants to tile is a rectangle measuring 60 inches by 96 inches. He uses only whole tiles. Find the greatest possible length of each side of a tile.

asked by amy on August 29, 2012
37. ## algebra

_______________________________________ MATH133 Unit 1 Individual Project 2 A 1) The following graph shows the depreciation for the corporate airplane from 2006 to 2009. The plane was purchased new in 2006; therefore, x = 0 represents the year 2006. X –

asked by Michelle on October 10, 2011
38. ## Math

Tim wants to model a doll house from a real house that measures 60 feet in length by 28 feet in width. He decides to use a scale in which ¼ inch equals 1 foot. Based on this scale, What will be the length of the longer side of Tim's model? inches What

asked by Matthew on June 25, 2013
39. ## geometry

Jim has put a fence along the side AC of the triangular patch of land shown below. A right angle triangle ABC is shown having length of one leg equal to 6 meters. The measure of angle ABC is 90 degrees. A fence is shown on the hypotenuse of the triangle.

asked by sunny on January 6, 2012
40. ## Math

Tim wants to model a doll house from a real house that measures 60 feet in length by 28 feet in width. He decides to use a scale in which ¼ inch equals 1 foot. Based on this scale, What will be the length of the longer side of Tim's model? inches What

asked by Matthew on June 25, 2013
41. ## MATH

Find the length of segment RS if S between R and T, the length of RS is 1/3 the length of segment RT, RS=3x-3 and ST=2x+6.

asked by Debbie on February 12, 2012
42. ## Math

You are bending a wire to make a coat hanger. The length of the wire is 88 centimeters, and 20 centimeters are needed to make a hook hanger. The triangular portion of the hanger is an isosceles triangle. The length of one leg of this triangle is 3/5 the

asked by Steven on November 1, 2011
43. ## Math

A runner tries to keep a consistent stride length in a marathon. But, the length will change during the race. A runner has a stride length of 5 feet for the first half of the race and a stride length of 4.5 feet for the second half. 1.)A marathon is 26

asked by Toni on October 26, 2017
44. ## math

a farmer wishes to enclose a rectangular region with 210 meters of fencing in such a way that the length is twice the width and the region is divided into two equal parts. what length and width should be used?

asked by eddie on September 6, 2011
45. ## math

a line segment in a coordinate plane with a length of 76 units was rotated 60 deg about the origin and then translate 10 units to the left. what would be a resulting length of the segment after these transformation

asked by johnsa on March 14, 2017
46. ## Math

A rectangles length and width are in a ratio of 17:2. The area is 136 square yards. What are the length and width. Have no idea how to even start to work this problem other than 17L X 2w= 136

asked by Mak on December 14, 2016
47. ## Physics

A sound wave travels a distance 1020 m in 5 minutes. If the length of the three successive crests is 15 m, then calculate the wave speed. "Length of three crests"? I'm not sure about that. Is the question okay? I'm confused. :/

asked by Kip on September 26, 2015
48. ## math

the width of a basketball court is 1 m more than half the length. If the area of the court is 364 m squared, find the length and width. Sounds easy...but I do not know how to start off the problem.

asked by jenn on April 8, 2011
49. ## algebra

find a table or other rectangular object and measure the length width and perimeter use feet or inches as your unit of measure express the length in terms of the width

asked by Anonymous on February 21, 2012
50. ## math

Kim is making rectangular greeting cards. Each card has an area of 12 square inches and the length is 1 inch more than the width. Find the length and width of her cards.

asked by beca on April 24, 2017
51. ## Math/Algebra

The length of Karen's living room is 2ft longer than the width. The perimeter is 80ft. Find the length and the width. Can someone please explain to me how you find the answers? Thanks a ton!

asked by Hannah on July 17, 2011
52. ## Physics!!!

A rod of length 1m lies in the lab frame making angle θ=30 with the x-axis. Find the length and the angle it makes with the x’-axis as seen by an observer moving at u=0.8c along the y-direction.

asked by Jennifer on March 13, 2011
53. ## Calculus

A parcel delivery service will deliver a package only if the length plus girth (distance around) does not exceed 84 in. What are the radius, length and volume of the largest cylindrical package that may be sent using this service?

asked by Amanda on August 27, 2011
54. ## math

a 32in board is to be cut into 3 peices so that the second board is twice as long as the first piece and the third is to be 5 times longer than the first piece. if x represents the length of the first peice, find the length of all three pieces.

asked by sarah on September 23, 2010
55. ## Pre Algebra

What are the length and width of a rectangular dog pen with a perimeter of 38 feet where the length is 2 feet less than twice the width? Write and solve a multi-step equation for the problem.

asked by Duncan on March 3, 2011
56. ## Physics

The 2nd harmonic of a string of length 60cm and linear mass density 1.7g/m has the same frequency as the 5th possible harmonic of a closed pipe of length 1.2m. Find the tension in the string.

asked by maryam on March 16, 2016
57. ## Geometry

A rectangular prism has the following characteristics. It has a volume of 71 cubic inches. The sum of the three lengths is 14. The width is 2 less than the length. The length is 5 more than the height. What are the dimensions of this rectangular prism?

asked by Brett on May 20, 2010
58. ## Algebra

The Jones family bought a new pet rabbit. They want to build an enclosure outside . They have 30ft of lumber. Find the length and width of the enclosure if the length is to be 4ft longer than twice the width.

asked by Phil on June 22, 2015
59. ## physics

a wire has a resistance of 6 ohm it is stretched out to a new length which is three times its original length what is the resistance of the longer wire?assume uniform diameter.resistivity and density are constant

asked by mat on February 22, 2016
60. ## Numerical Analysis

use a graph, or guess and then confirm a bracket, or tabulate f(x) on a wide interval to figure the bracket of length one. to find an interval of length 1 that contains a root of the equation 3x^3 +x^2=x+5. I don't understand what to do

asked by Ashley on September 2, 2014
61. ## math

A piece of wooden rod 31 cm long is to be cut into three parts, two of which are to be of equal length. the length of each of the two equal part is 5 cm longer than third part. find their lengths. solution pls.

asked by Taeyeon on January 13, 2015
62. ## math

Nathan bought 8 wooden posts to build a fence. The length of each post is 6 feet 4 inches. What is the total length in inches of the 8 posts? A. 608 B. 576 C. 166 D. 76

asked by I Need Help Fast on May 28, 2014
63. ## Math

Explain why the lengths of the corresponding sides of rectangles ABCD and EFGH vary proportionally. I cant post the picture of the triangles but the length of the first triangle DA=44 and the width AB=88. The second triangles length HE=35 and width EF=70

asked by Heather on November 13, 2013
64. ## Math {ASAP}

IS THIS RIGHT The length of the bat is probably about 34 in. Inches is not an SI unit The SI unit for length is the metre (m) So to convert from inches to metres the following conversion factors are used: 34 in = 34in x (2.54cm / 1 in) x (1m / 100cm) = (34

asked by Frances Salome on November 5, 2012
65. ## math

the area of rectangular plot of land fenced all round is 2000 sq. yards and the total length of fencing 180 yards. find the length and width of plot.

asked by kashif on December 13, 2015
66. ## Calculus

Consider a box with a square base of side length s and height h. If the sum of the length, width, and height of the the box is 120 inches, what is the maximum possible volume? Justify your answer.

asked by Vivi on February 13, 2013
67. ## Pre calculus

bit strings of a fixed length are needed to form a code. what is the minimum length of the string is one string is needed to represent each letter of the alphabet and each decimal digit?

asked by Lisa on April 14, 2011
68. ## math

A study of 60 bolts of carpet showed that their average length was 180 yards. The standard deviation of the population is 6 yards. Which of the following is the 99% confidence interval for the mean length per bolt of carpet?

asked by hassan on April 14, 2014
69. ## Algebra

The length of the side if a rectangular desk is given by 2x-7x cm. The length of the front is given by 2x +7y cm. What is an algebraic expression for the area of the top of the rectangular desk? Include correct units as part of answer.

asked by Miguel on March 11, 2011
70. ## Algebra 2

Sam recently has a Square garden. He wants to redesign his garden and make it into a rectangle with a length that is 3 feet shorter than twice it's width. He decides that the perimeter should be 60 feet. What are the dimensions,in feet, of his new garden.

asked by Marlene on September 28, 2016
71. ## physics

The Yerkes refracting telescope has a 1 m diameter objective lens of focal length 20 m.Assume it is used with an eyepiece of focal length 4.31 cm. Find the angular magniﬁcation of the planet Mars as seen through this telescope

asked by Jim on March 21, 2011
72. ## physics

The distance between the lenses of a microscope is 18 cm. The focal length of the eyepiece is 1.8 cm. If the microscope is to produce an angular magnification of -260 when used by a person with a normal near point (20 cm from the eye), what must the focal

asked by Orla on April 6, 2016
73. ## Calculus

A piece of wire x cm long is to be cut into two pieces, each to bent to be a square. the length of a side of one square is to be 9 times the length of a side of the other . Express the sum of the areas of two squares in term of x .

asked by Angy on November 15, 2014
74. ## algebra

Jeffrey is building a rectangular flower garden, width is "w" and length is w + 3. Write a a mathematical expression for the length and an algebraic expression for the area of the garden in binomial descending order.

asked by Ina Boston on March 24, 2010
75. ## Probability/Math

Find the probability that a randomly thrown dart will land in the shaded area of the dartboard. A square that is 6ft width by 6ft length 4ft width by 9ft length.

76. ## Math

isoceles triangle with vertex of 45 degrees, base angles are 67.5 degrees. The 2 legs are 10' in length. What is the length of the base? (I am an older adult with minimal math skill. Just have a building project.)

asked by Tom on April 30, 2016

1. -1/9 + (-5/7) = ? 2. 11/12 + (-2/3) = ? 3. What is the difference between an irrational number and an integer? 21. A length of ribbon is three and one-half yd long. How many pieces one and five-ninths yd long can Joy cut from the length of ribbon? (1

asked by Delilah on October 3, 2012

Grace also bought 2 lengths of ribbon to trim a picture frame. one length was 18 inches. the sum of both lengths was 4 feet. what ws the length of the second piece of the ribbon

asked by mythreyee on February 11, 2014
79. ## Physics

How will the balancing length of a potentiometer be affected if resistance in the primary cell is increased or decreased? Will the balancing length change if a resistance is introduced before the jockey ?

asked by vin on February 28, 2015
80. ## math

find the volume of a tent having the shape of a rectangular solid of length 13 ft, width 12 ft, and heihght 8 ft topped by a rectangular pyramid of the same width and length with height 5 ft

asked by Jaime on July 2, 2010
81. ## Math

Leo wants to paint a mural that covers a wall with an area of 1734 swuate feet. The height of the eall is 2/3 of its length.What is the length and the height of the wall?

asked by Mecca on May 25, 2016
82. ## math

aaron made a scalw drawing of his bedroom he used the scale 1/4 inch = 1 foot the length of his bedroom in the drawing is 5 inches what is the actual length of his room ?

asked by brooke on March 23, 2015
83. ## Math

The SI unit of measure for length-the meter-would be most appropriate when a. Measuring the wingspan of an insect b. measuring the height of a building. c. measuring the length of an ant. measuring the distance between two cities

asked by Mike on September 20, 2016
84. ## Math

"Find the area of a rhombus with sides of length 10 in. and longer diagonal of length 16 in." and Also, how do you solve the problem "Find the area of a regular decagon with radius 4 cm."

asked by Celina on June 9, 2013
85. ## Math

the towns highway department marks a new road with reflective markers the road is 6 3/4 miles in length the markers are spaced every length 1/8 of a mile. What is an expression that can be used

asked by Daniel on October 14, 2016
86. ## physics

How do I calculate String mass density from what I got frequency= 30.0Hz, segment length= 42.5cm , nodes=2, string length=83.5cm and tension=2.150kN?

asked by joy on April 20, 2018
87. ## Algebra 0110 College

1) A rectangle has perimeter 38 feet and an area of 78 square feet. Find the dimensions of the rectangle assuming the width is smaller than the length. L= W= 2) A rectangular canvas picture measures 9 inches by 7 inches. The canvas is mounted inside a

asked by Quince on October 15, 2013
88. ## math. Quantitative methods

The First American bank is trying to determine whether it should install one or two drive-through windows. The following probability distributions for arrivals and service times have been developed from historical data Time between Automobile arrivals in

asked by mervat on April 28, 2009
89. ## physics

A metal rod has a length of 4m at 50 degrees celcius and a length of 6m at 200 degrees celcius. What is it's length at 20 degrees celcius?

asked by Afrah on November 24, 2011
90. ## physics

A block of mass M hangs from a rubber cord. The block is supported so that the cord is not stretched. The unstretched length of the cord is L0 and its mass is m, much less than M. The "spring constant" for the cord is k. The block is released and stops at

asked by Stephen on December 1, 2009
91. ## Algebra

The length of the sides of a triangle are three consecutive even integers. The perimeter of the triangle is 36 in. What is the length of the longest side of the triangle?

asked by Jocelyn on May 24, 2011
92. ## math

Pool length (m) 9 Depth of pool (m) 1.6 Pool length (ft) 29 Is it correct to write that 9m (metric system) is 29 feet

asked by randa on December 5, 2012
93. ## Math

JajA had three ribbon with her . The length of the green ribbon qas2/1/2 times the red ribbon.what is the length of the yellow

asked by Anonymous on November 22, 2017
94. ## physics

An object is placed (a)6cm (b)20 from a thin convex lens of focal length 10cm.determine the nature,position and magnification of the image in each case.

asked by Agu on April 8, 2013
95. ## algebra

An open box is to be constructed from a rectangular sheet of tin 5 meters wide by cutting 1 square meter from each corner and folding up the sides. The volume of the box is to be 18 cubic meters. What is the length of the tin rectangle?

asked by Billy on September 25, 2016
96. ## Algebra

An open box is to be constructed from a rectangular sheet of tin 3 meters wide by cutting out a 1-meter square from each corner and folding up the sides. The volume of the box is to be 2 cubic meters. What is the length of the tin rectangle?

asked by Sejul on October 3, 2011
97. ## Math

Betty decides to compare the diagonals of both the square and rectangular tables customers will use in the coffee shop. Her measurements show that the square tables have a side length of 34 inches and the rectangular tables are 29 1/ 3 inches wide and 35

asked by Kim on November 7, 2017
98. ## MATH

If a rectangular prism is h=10 inches an W=2 inches would the length be 8 inches how do I find the length Same question for a Rectanguler prism with a h=8 inches w=2.5 inches would the length be 8 inches or 5 inches

asked by meshel on April 3, 2016
99. ## math

If a rectangular prism is h=10 inches an W=2 inches would the length be 8 inches how do I find the length Same question for a Rectanguler prism with a h=8 inches w=2.5 inches would the length be 8 inches or 5 inches

asked by meshel on April 1, 2016
100. ## math

: A metalic sheet of rectangular shape with 48m*36m from each of it corner a square is cut off so as to make an open box. if length of each square length is 8m find thevol&lsa of box

asked by srikar on March 7, 2016