1. Physics

    A 5.00-kg block is placed on top of a 12.0-kg block that rests on a frictionless table. The coefficient of static friction between the two blocks is 0.650. What is the maximum horizontal force that can be applied before the 5.00-kg block begins to slip

    asked by John on November 10, 2014
  2. MAT126: Survey of Mathematical Methods

    All numbers in our real number system are the product of prime numbers. Complete the following steps for this discussion: List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15

    asked by sheila on December 20, 2013
  3. Physics

    Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over a frictionless, massless pulley. Block B hangs down vertically. When the two blocks are released, Block B accelerates downward at a rate of

    asked by Emily on February 18, 2016
  4. math

    logan isn't 2 years older than Lindsey. Five years ago the sum of their ages was 30. Find Lindsey current age. X-5+2x-5=30. -1 + 0= 30. I don't think this right I tried I can't get the right answer. According to the common core the answer is supposed to be

    asked by Kirsten on March 11, 2015
  5. statistics

    In a survey randomly selected subjects, the mean age of the 36 respondents is 40.0 years and the standard deviation of the ages is 10.0 years. Use these sample results to construct a 95% confidence interval estimate of the mean age of the population from

    asked by Anonymous on March 6, 2013
  6. Physics

    Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by ASak on September 25, 2016
  7. Physics

    Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by Max on September 25, 2016
  8. physics

    Block A (Mass = 5.195 kg) and Block B (Mass = 3.330 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by taylor on September 22, 2016
  9. physics

    Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by Carly on October 8, 2015
  10. Physics

    Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by Plase help soon on September 25, 2016
  11. Physics

    Block A (Mass = 2.319 kg) and Block B (Mass = 1.870 kg) are attached by a massless string as shown in the diagram. Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes over (you guessed it) a

    asked by Josh on September 25, 2016
  12. mechanics: spring problem

    You drop a block from rest from a height h=3 m. The block lands on the spring at height h1 = 1.5 meters (spring constant = 160Nm) and compresses it 0.5 m before the block and spring momentarilty come to rest. (The spring then pushes the block upward.) What

    asked by student1618 on September 4, 2015
  13. Physics

    A block has mass 800 g, whose is fasten to a spring with spring constant k is 70 N/m. The block is pulled a distance x = 15 cm from its equilibrium position at x = 0 on a frictionless surface and released from rest at t = 0. (a) What force does the spring

    asked by Dia on December 18, 2011
  14. Math

    Jill and Bill are two members of the Hill family. Jill is 8 years old and Bill is 9 years old. What will Bill's age be when the total of the digits in both their ages is once again 17?

    asked by Kevin on September 4, 2013
  15. physics

    A block of wood with a mass of 1300g is sitting on a horizontal tabletop. The coefficient of kinetic friction between the block and table is µk=0.74.A rifle bullet with a mass of 39g is fired horizontally into the block at a sped of 290m/s and stops

    asked by aaron on February 19, 2015
  16. Physics

    A block of mass m is projected at speed Vo up a rough plane inclined at an angle theta to the horizontal. Model the block as a particle and assume that the frictional force acting is given by kv^2, where v is the block's speed and k is a constant. What is

    asked by Anonymous on May 14, 2012
  17. Physics

    A block of mass m1 = 4.1 kg rests on a frictionless horizontal surface. A second block of mass m2 = 1.7 kg hangs from an ideal cord of negligible mass that runs over an ideal pulley and then is connected to the first block. The blocks are released from

    asked by Angie on January 25, 2010
  18. Physics

    Block A (Mass = 3.500 kg) and Block B (Mass = 2.450 kg) are attached by a massless string Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes overa frictionless, massless pulley. Block B hangs down

    asked by ASak on September 24, 2016
  19. PHYSICS HELP!

    1. A 125-gram projectile strikes a 1.45 kg block that's attached to a massless vertical pole & becomes embedded in the block causing the bullet & block to swing upward. The overall length of the pole & the block combined is 1.1m. The bullet & block at the

    asked by A on April 27, 2016
  20. Physics

    Block A (Mass = 3.146 kg) and Block B (Mass = 2.330 kg) are attached by a massless string Block A sits on a horizontal tabletop. There is friction between the surface and Block A. The string passes overa frictionless, massless pulley. Block B hangs down

    asked by Quaz on September 24, 2016
  21. physics

    A Block has a mass of 50.0 kilograms. the coefficient of static friction between the block and the level floor on which it rests is 0.428 A horizontal force of 618 newtons is applied to the block to the right, as shown. will the block move?

    asked by Jen on May 24, 2012
  22. math

    on page 50 of algebra woth pizzazz Andy is twice as old as kate. in 6 years, their ages will total 60. How old is each now?

    asked by Daniela on October 1, 2017
  23. Maths

    SAMUEL IS 5 YEARS OLDER THAN HIS BROTHER .THE SUM OF THEIR AGES IS 33.WRITE A MATHEMATICAL EQUATION?

    asked by Maths on September 28, 2017
  24. physics

    A simple harmonic oscillator consists of a 1.1 kg block attached to a spring (k = 180 N/m). The block slides on a horizontal frictionless surface about the equilibrium point x = 0 with a total mechanical energy of 3.0 J. (a) What is the amplitude of the

    asked by Anonymous on January 10, 2011
  25. cary collage

    "A 2.5-kg block slides down a 25 degree inclined plane with constant acceleration. The block starts from rest at the top. At the bottom, its velocity reaches 0.65 m/s. The length of the incline is 1.6m. a) What is the acceleration of the block? b) What is

    asked by sahan on September 27, 2010
  26. Math

    How many two block towers can you make from: 1 black block,1 red block, and 1 blue block? Please explain.

    asked by Chris on September 9, 2011
  27. Math,algebra

    ann is 20 years older than her daughter faye. three years from now she will be six times as old as her daughter. find their present ages. This is my work: ( i'm not sure if it's correct ) Now 3 yrs from now Ann A A+3 Faye 6A 6A+3 7a+21 = 6A+3 -6A -6A

    asked by Ellofrmdaodersyde on February 15, 2016
  28. math

    Enzo is 7 years younger than Ezra.Five years later,Ezra will be twice as old as Enzo.Find their present ages

    asked by bea on January 17, 2017
  29. arithmetic

    ami is 8 years older than her sisiter,ceanne. in four years ami will be twice as old as ceanne. what is the sum of their ages now?

    asked by logan on October 22, 2008
  30. math

    sofia is 3 years older than Eunice. In 5 years , Sofia will be twice as old as Eunice will then be. Find their present ages.

    asked by eunice on September 26, 2015
  31. physics

    Block A (mass = 3 kg), moving at +5 meters per second, collides with stationary block B (mass = 4 kg). Block A comes to a sudden stop, while block B starts moving. What will be the approximate final speed of block B?

    asked by Rachel on June 5, 2017
  32. Physics help please

    Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a

    asked by Jim on April 6, 2012
  33. Physics Question

    Twins who are 19.0 years of age leave the earth and travel to a distant planet 12.0 light-years away. Assume that the planet and earth are at rest with respect to each other. The twins depart at the same time on different spaceships. One twin travels at a

    asked by Anonymous on April 6, 2012
  34. math

    List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed

    asked by trenda on July 20, 2011
  35. math

    List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed

    asked by leslie on August 16, 2011
  36. physics

    Block 1, of mass1 = 0.550kg , is connected over an ideal (massless and frictionless) pulley to block 2, of mass2 , as shown. For an angle of = 30.0 and a coefficient of kinetic friction between block 2 and the plane of = 0.300mu(kinetic friction), an

    asked by Samantha on October 23, 2012
  37. math

    3rd grade The jacksons have pet dogs named Beau and Max. Beau is 2 years older than Max. The sum of thier ages are 16 years. How old is Beau? How old is Max?

    asked by savannnah on September 28, 2007
  38. MATH

    JACK AND JOAN PAINTED 3 HOUSES IN 12 DAYS. AT THAT RATE, HOW MANY HOUSES CAN THEY PAINT IN 28 DAYS?

    asked by KIRA on February 20, 2008
  39. math

    jack an joan painted 3 houses in 12 days.At that rate, how many houses can they paint in 28 days??

    asked by KIRA on February 21, 2008
  40. math

    Shane is 34 years younger than Leah. 8 years ago, Leah's age was 2 times Shane's age. How old is Shane now? A) Translate the given information into an equation using the variable x = current age of Shane. Your equation should tell the story of the problem

    asked by Anonymous on October 22, 2015
  41. math

    Kelly has 4 times as many songs on her music player as Lou. Tiffany has 6 times as many songs on her music player as Lou. Altogether, they have 682 songs on their music players. How many songs does Kelly have. Please teach me the steps on how to do it I`m

    asked by Anonymous on November 6, 2014
  42. Physics

    A block of mass m1 is on top of a block of mass m2. Block 2 is connected by an ideal rope passing through a pulley to a block of unknown mass m3 as shown. The pulley is massless and frictionless. There is friction between block 1 and 2 and between the

    asked by Rose on June 23, 2013
  43. pHysics !!

    A 20-g bullet is fired horizontally into a 980 g block of wood suspended by a long cord. The bullet sticks in the block and causes the block to swing 15 cm above its initial level. a) What is the momentum of the bullet before it hit the block? b) Determine

    asked by kent on September 1, 2013
  44. physics

    A string going over a massless frictionless pulley connects two blocks of masses 4.4 kg and 11 kg. As shown on the picture below, the 4.4 kg block lies on a 23◦ incline; the coefficient of kinetic friction between the block and the incline is μ = 0.29.

    asked by Sarah on March 6, 2014
  45. Physics

    1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it? 2. A piller with a cross sectional area of 1.5 m^2 supports a portion of a

    asked by Cielo on September 3, 2014
  46. math

    When a woman is as old as her father is now, she will be five times as old as her son is now. By then, her son will be eight years older than she is now. The combined ages of her father and herself are 100 years. How old is her son?

    asked by ael on September 21, 2011
  47. Physics

    A 20.0 kg block is connected to a 30.0 kg block by a string that passes over a light, frictionless pulley. The 30.0 kg block is connected to a spring that has negligible mass and a force constant of 200 N/m. The spring is unstretched when the 30.0 kg block

    asked by mightymouse on March 3, 2009
  48. Physics

    A 4 kg block rests between the floor and a 3 kg block. The 3 kg block is tied to a wall by a horizontal rope. If the coefficient of static friction is 0.800 between each pair of surfaces in contact, what force must be applied horizontally to the 4 kg block

    asked by Joe on December 19, 2012
  49. english

    In the below sentence. "Too many people bought too much house for too many years". "too much house" is grammarly correct? it shouldn't be changed to too many houses?

    asked by ohwoo on September 16, 2009
  50. math

    Please help me solve this word problem. If Leah is 6 years older than her sister, sue, and John is 5 years older than Leah, and the total of their ages is 41. Then how old is Sue?

    asked by Becky1 on November 17, 2008
  51. Math

    At present, the sum of the ages of a father and his son is 33 years. Determine the smallest number of years until the father's age is 4 times the son's age.

    asked by Student on September 13, 2015
  52. English/History

    The Early and Late Middle Ages both went through bad times with all the wars and dieseases. The High Middle Ages were growing agriculture, trading, and their cities were growing. It was the best era out of the Middle Ages and altered society in such good

    asked by Anonymous on January 25, 2011
  53. AP European history

    So, I'm supposed to answer the question: Europe during the Middle Ages in often imagined as an isolated and inward looking time in history. Defend or refute this statement. I don't know which way I should answer it, as defending it or refuting it. I mean,

    asked by Alex on February 11, 2011
  54. Physics

    Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left face of the left

    asked by Mary on May 25, 2012
  55. physics

    A 4.0-kg block is stacked on top of a 12.0-kg block, which is accelerating along a horizontal table at a = 5.2m/s2 . Let u=uk=us. (a) What minimum coefficient of friction u between the two blocks will prevent the 4.0-kg block from sliding off? (b) If u is

    asked by Anonymous on November 20, 2012
  56. History

    Which option accurately compares the theology that dominated during the Middle Ages with the philosophy that came to prominence during the Renaissance? the middle ages followed a communist system form of government, whereas the renaissance followed a

    asked by malia on October 17, 2017
  57. physics

    Two cubic blocks are in contact, resting on a frictionless horizontal surface. The block on the left has a mass of mL = 6.70 kg, and the block on the right has a mass of mR = 18.4 kg. A force of magnitude 112 N is applied to the left face of the left

    asked by caroline on October 31, 2010
  58. Math/Physics2

    The block has mass m=8.5 kg and lies on a fixed smooth frictionless plane tilted at an angle theta=20.0 degrees to the horizontal. Determine the acceleration of the block as it slides down the plane. If the block starts from rest 15.0 m up the plane from

    asked by Era on September 23, 2009
  59. Physics

    A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.7 m/s2 when a horizontal force F= 350 N is applied. Assuming there is no friction between the bottom 100 kg block and the horizontal frictionless surface but

    asked by Katie on June 16, 2018
  60. Physics

    A 60 kg block slides along the top of a 100 kg block.  The lighter block has an acceleration of 3.7 m/s2 when a horizontal force F= 350 N is applied.  Assuming there is no friction between the bottom 100 kg block and the horizontal frictionless surface

    asked by Courtney on June 18, 2017
  61. Physics

    A block is suspended from the end of a spring. An external force holds the block so that initially the spring is not stretched or compressed. When the block is released, it oscillates up and down between positions A and B. If the mass of the block is 0.5

    asked by Mary on February 21, 2012
  62. Physics! Need help!

    A 60 kg block slides along the top of a 100 kg block. The lighter block has an acceleration of 3.4 m/s2 when a horizontal force F= 370 N is applied. Assuming there is no friction between the bottom 100 kg block and the horizontal frictionless surface but

    asked by Randy on October 8, 2017
  63. general physics

    A string going over a massless frictionless pulley connects two blocks of masses 5.9 kg and 9.5 kg. the 5.9 kg block lies on a 31 ◦ incline; the coefficient of kinetic friction between the block and the incline is µ = 0.22. The 9.5 kg block is hanging

    asked by David on February 20, 2016
  64. physics

    A 50-kg block is pushed a distance of 5.0 m across a floor by a horizontal force Fp whose magnitude is 150 N. Fp is parallel to the displacement of the block. The coefficient of kinetic friction is 0.25. A) What is the total work done on the block? B) If

    asked by Amy on February 14, 2012
  65. physics

    A 20kg block is being pulled by a 150N force,the block is initially at rest,if the coefficient of frictionbetween the block and the surface is 0.3,find (a)the normal force,(b)the friction force acting on the block,(c)find the acceleration of the block

    asked by amaka on October 28, 2011
  66. physics

    A block is initially sliding along a horizontal surface with 24.6 J of kinetic energy. Friction causes the block’s speed to be halved in a distance of 3.20 m. a) What is the kinetic energy of the block after traveling the 3.20 m? b) What is the magnitude

    asked by Katie on July 16, 2012
  67. English

    Posted by rfvv on Thursday, October 7, 2010 at 12:07am. 1. You are a girl aged between 13 and 19 years old. (Which one is missing between 'girl' and 'aged'? is #1 from #2?) 2. You are a girl who is aged between 13 and 19 years old. English - MattsRiceBowl,

    asked by rfvv on October 7, 2010
  68. physics

    A 20 g bullet moving horizontally with a speed v hits a 2-kg block of wood resting on a table. After hitting the block the bullet is embedded in the block of wood and the block and the bullet moves a distance of 40 cm before it stops. If the coefficient of

    asked by Edward on July 23, 2012
  69. Physics... Please Help

    An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration has a magnitude of

    asked by Robert C on October 14, 2009
  70. Physics

    An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration has a magnitude of

    asked by Robert C on October 12, 2009
  71. Math

    the frequency table shows the ages of 30 children who participate in soccer league. How many are 12 years older? (Connexus) who knows?

    asked by InfectedSound on May 8, 2017
  72. math

    Peter is three years older than his sister paula. If their combined age is 21 find their actual ages. x+3=21 X+3-3=21-3 X=18 Answer=18 and 3

    asked by ali on September 20, 2015
  73. math

    alma is 6 years older than her sister ana. four years ago, ana's age is more than half of alma's age. what are their present ages

    asked by abby on October 8, 2015
  74. Math

    Vic and Ben's ages are in the ratio of 3:4. If Vic is 12 years old and 3 months old how old is Ben in years and months?? *Thanks in Advance for Helping me answer this question*

    asked by Mika on September 22, 2016
  75. maths

    Five years ago Kate was five times as old as her son. Five years hence her age will be eight lessthan three times the corresponding age of her son. Find their present ages.

    asked by somay on April 28, 2016
  76. puzzling math riddle

    I am five times as old as my sister. In six years I will be twice as old. Some day our ages added together will total 72. How old will I BE IN TEN YEARS?????? Meage=5*Sisage Meage+6= 2*(sisage+6) 5Sisage+6=2Sisage|12 solve for sisage, then myage, then

    asked by severina on October 25, 2006
  77. ALGEBRA

    of all the houses in a certain neighborhood,80 % have garages.Of those houses with garages 60% have two car garages.If there are 56 houses with garages that are not two car garages,how many houses are there in the neighborhood. How do I do this using

    asked by Delila on October 20, 2017
  78. ALGEBRA

    of all the houses in a certain neighborhood,80 % have garages.Of those houses with garages 60% have two car garages.If there are 56 houses with garages that are not two car garages,how many houses are there in the neighborhood. How do I do this using

    asked by Delila on October 20, 2017
  79. Math

    Kelly sees some fish at the pet shop.A man buys 2 fish. A boy buys 4 fish. Now there are 3 fish. How many fish did kelly sees at first?

    asked by Anonymous on October 10, 2017
  80. Math

    The census taker says, "I need to know the ages of your children." The mother replies, "I have no one-year-olds. The product of my children's ages is 90, and the sum of their ages is the same as my house number." The census taker replies. "I can see the

    asked by Sarah on September 28, 2010
  81. physics

    a 2kg block of wood rests on a long table top. a 5 gram bullet moving horizontally with speed of 150m/s is shoot into the block and stricks in it then block slides 270cm along the table and stops. find a)speed of block after impact b)friction force between

    asked by yonas on February 19, 2012
  82. physics

    A 13.1-g bullet is fired into a block of wood at 261 m/s. The block is attached to a spring that has a spring constant of 205 N/m. The block and bullet continue to move, compressing the spring by 35.0 cm before the whole system momentarily comes to a stop.

    asked by heltor on April 7, 2015
  83. physics

    A 2.09 kg block is placed on top of a 10.9 kg block. A horizontal force of F = 63.3 N is applied to the 10.9 kg block, and the 2.09 kg block is tied to the wall. The coefficient of kinetic friction between all moving surfaces is 0.117. There is friction

    asked by shel on October 10, 2010
  84. Math

    if n houses have k windows, write an expression to represent the number of windows for n + 1 houses n+ 1 = 4+4k

    asked by Need Help on August 8, 2018
  85. Math

    1. Find two numbers whose sum is 84 and one number is 18 more than the other. Answer: 84-18=2x x=33 84+18=2x x=51 2. A board 125 inches long is to be cut into two equal parts so that one part is 4 inches less than twice as long as the other part. Find the

    asked by Finding and solving equations on February 20, 2014
  86. math

    List the ages of two people in your life, one older than you and one younger than you. It would be best if the younger person was 15 years of age or younger. Find the prime factorizations of your age and the other two persons’ ages. Show your work listed

    asked by ashford university on June 27, 2011
  87. Physics

    ***EXTRA CREDIT*** An arrow is fired with a speed of 20.0 m/s at a block of Styrofoam resting on a smooth surface. The arrow penetrates a certain distance into the block before coming to rest relative to it. During this process the arrow's deceleration has

    asked by Robert C on October 13, 2009
  88. Math

    Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1320. How old are they?

    asked by Wendy on November 7, 2011
  89. math

    Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1,320. How old are they?

    asked by Michael Florent on October 3, 2012
  90. Math

    Ade is four times as old as his sister Sola.If the sum of their ages is 20.Find the difference of their ages.

    asked by Faith on November 20, 2016
  91. Math

    Lita is three times Joe's age. The difference of their ages is 10. Find their present ages.

    asked by Anonymous on February 9, 2016
  92. Math

    Three students came to the bake sale to shop. The sum of their ages is 33. The product of their ages is 1,320. How old are they?

    asked by Sara on December 3, 2008
  93. algebra

    The sum of Kaitlyn and John's ages is 26 and one-thirds years. John is twelve years older than Kaitlyn. How old is Kaitlyn?

    asked by Chrisna on November 18, 2015
  94. Physics

    Block A and block B (see figure below) are forced together, compressing a spring (with spring constant k = 2220 N/m) between them 2 cm from its equilibrium length. The spring, which has negligible mass, is not fastened to either block and drops to the

    asked by Todd on October 7, 2010
  95. Physics

    A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3.

    asked by Emeera on March 6, 2014
  96. Physics

      Block A and block B are forced together, compress- ing a spring (with spring constant k = 2500. N/m) between them 3.00 cm from its equilibrium length. The spring, which has negligible mass, is not fastened to either block and drops to the surface after

    asked by Trouble on October 20, 2014
  97. Physics

    A string going over a massless frictionless pulley connects two blocks of masses 6.4 kg and 13 kg. As shown on the picture below, the 6.4 kg block lies on a 32◦ incline; the coefficient of kinetic friction between the block and the incline is μ= 0.3.

    asked by mallak on February 22, 2014
  98. Math

    The data below represent the ages of people working at a store. 18, 26, 19, 25, 19, 23, 31, 22, 19, 18, 20 What is the first quartile of these ages? 19?

    asked by Gigi on June 1, 2015
  99. math

    illuminated by the rays of the setting Sun, Kelly rides along on a merry-go-round casting a shadow on a wall. The merry-go-round is turning 36 deg per sec. Kelly is 25 ft from its center, and the Sun's rays are perpendicular to the wall. At what rate is

    asked by sophie on May 22, 2011
  100. Algrebra-Systems of Equations

    Mary is twice as old as her nephew. The sum of their ages is108. Write system of equations that could be used to find there ages.

    asked by Resha on January 19, 2012