1. algebra

    two records and three tapes cost $31.three records and two tapes cost $29.find the total cost of each record and each tape

    asked by jake on May 26, 2008
  2. Math

    Given that Angle OUR is congruent to Angle PUN and Angle OUR =2x+5,Angle RUN=4x-2 and Angle PUT= x+32,find the measure of Angle PUN

    asked by Anna on August 23, 2017
  3. math

    Suppose a single die is rolled, Find: a)P(6, given that an odd number was rolled) b) P(5, given that an odd number was rolled)

    asked by helpme on October 31, 2008
  4. statistics

    60% of the students at a college are female. If 13 students at that college are selected random, find the probability that 5 or 6 students will be female

    asked by jill on March 6, 2011
  5. rs aggarwal math class 8 chapter 8 soluation

    in a fraction twince the numerator is 2 more than the denominator . if 3 is added to the numerator and to the denominator , the new fraction is 2/3 . find the original fraction.

    asked by rs aggarwal class 8 math si on April 13, 2016
  6. algebra 2

    if log5 4 = .8614 and log5 9 = 1.3652 find the approximate value of log5 36. would I multiply .8614 and 1.3652 or add them?

    asked by huncho jack on April 2, 2018
  7. maths

    Shanze PAID TOTAL RS.98 FOR NECKLACE and PURSE.NECKLACE COST RS.18.20 MORE THAN THE PURSE FIND THE COST OF PURSE?

    asked by khizran on March 19, 2015
  8. Math

    Maria has $5.05 in quarters and dimes. The number of quarters exceeds twice the number of dimes by 1. Find the number she has of each kind.

    asked by Emily on October 28, 2011
  9. math

    The denominator of a fraction is 3 more than the numerator. If 5 is added to the numerator and 4 is subtracted from the denominator the value of the new fraction is 2. Find the original fraction?

    asked by Edang on August 8, 2017
  10. Math

    I add 12 to a number and then double their sum, the result is 1½ of what I get when I double the original number and add 12. Find the number.

    asked by Emmanuel Attai on November 16, 2016
  11. math

    Find an equation for the line that passes through the point (2, -5) and is parallel to the x-axis and is parallel to the y-axis and is parallel to the line 2x - 4y = 3

    asked by Kathy on January 19, 2014
  12. Algebra

    The area of a playground is 221 yd^2. The width of the playground is 4 yd longer than its length. Find the length and width of the playground.

    asked by ismackyourfacewithabanana! on March 28, 2011
  13. geomerty

    the measure of an interior angle is 60 degrees less than 11 times the measure of an exterior angle find the value of the interior angle

    asked by Anonymous on March 3, 2011
  14. maths

    Shanza paid Rs98 for a necklace and purse.the necklace cost Rs 18.20 more than purse. Find the cost of purse.

    asked by khizran on March 19, 2015
  15. find perimeter

    find perimeter. assume all angles are right angles. 4ft.,6ft, 4ft., 4ft, 9ft., 9ft.,10

    asked by jan on November 4, 2014
  16. Math

    Two dice are rolled. Find the probability that an even number is rolled on one die and an odd number is rolled on the second die.

    asked by Maya on June 13, 2009
  17. algebra

    I need help with this problem:Two records and three tapes cost $31. Three records and two tapes cost $29. Find the cost of each record and tape.

    asked by Anonymous on February 1, 2010
  18. statistics

    the probability that a television containt 0, 1, or 2 defects is 0.88, 0.08, and 0.04, respectively. in a sample of 16 television, find the probability that 9 will have 0 defects, 4 will have 1 defect, and 3 will have 2 defects.

    asked by Michelle on May 16, 2011
  19. Math

    A person standing close to the edge on the top of a 160-foot building throws a baseball vertically upward. The quadratic function s(t) = -16t^2 +64t + 160 models the ball's height above the ground, s(t), in feet, t seconds after it was thrown. After how

    asked by Nicole on October 18, 2011
  20. Physics

    A building has a symmetric roof made from two straight sections at an angle of 20‹ above the horizontal. The sides are uniform and have a mass of m = 1800 kg. Find the magnitude of the horizontal force that this roof exerts at the top of the wall,

    asked by Lou-Anne on November 11, 2007
  21. Math

    Driving down a mounain Jim finds that he has descended 1800FT in elevation by the time he is 3.25 mi horizontally away from the top of the mountain find the slope of his decent to the nearest hundreth. I am sorry that you did not get a response to your

    asked by David on February 13, 2007
  22. science

    Mrs leuenberger ran the same marathon but since her husband was hunting and she couldn"t find a babysitter she had to carrY her two daughter in her arms they weighs 40pounds and 55 pounds mrs leuenberger weights 145pound (butyou didn't hear that from me)

    asked by Keria on October 24, 2009
  23. english-siddhartha

    i have answered the other questions that i was requested to do but theses ones i cant figure them out can anyone help please? Chapter 5 Kamala What changes do we see in Siddhartha in chapter 5? ---3 quotes that show this change? Chapter 6 Amongst the

    asked by jade. on February 15, 2010
  24. Math

    A tank has cross-sections in the form of isosceles triangels, vertex down. The top of the tank is 6ft wide, its height is 4ft, and its length is 10ft. find the work in pumping all the water to the top of the tank. (weight of water is 62.4 pounds per cubic

    asked by jeff on May 29, 2009
  25. English

    Do you think I should consider this sentence (1) as wrong? (I included it in a test) . 1) He tells how his ship was caught in a violent storm, then by mist and snow and finally was surrounded by ice. 2) I need to find a reading comprehension at

    asked by Henry2 on November 16, 2011
  26. criminal justice

    Shaw's dual sovereignty model involves: a. sovereignty being shared between border states b. federal and state constitution examined simultaneously c.states automatically forwarding their laws to the US supreme court for review d. state supreme courts and

    asked by Amy on July 30, 2015
  27. science

    1.A melting glacier leaves behind _______ 2.One place to find large, moving _______ is in cold mountain areas 3. Glaciers scoop out _______ that can later fill up with water 4.The movement of some glaciers is helped by _____ 5.Climate change can affect the

    asked by Hanan on September 22, 2014
  28. History

    Who was the first president to get impeached? http://www.mapsofworld.com/us-presidents/us-president-trivia.html Scroll down. You'll find it! =) who commanded the texas forces at the battle of the alamo?? .stephen austin .william travis .or brigham young

    asked by Anonymous on February 28, 2007
  29. calculus

    A question on my math homework that I can't seem to solve... Rotate the region bounded by y=x^2-3x and the x-axis about the line x=4. Set up the integral to find the volume of the solid. I'm pretty sure that the integral is in terms of (dy), and has bounds

    asked by Michelle on January 24, 2009
  30. physics

    2 cars of equal mass m collide at an intersection. Driver E traveled eastward and driver N northward. After the collision, 2 cars remain joined together and slide, before coming to a rest. Police measured the skid mark length d to be 9metres. Coefficient

    asked by Kim on May 3, 2007
  31. physics

    Two stars are 3.80 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.19 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that

    asked by linds on April 15, 2012
  32. bobpursley

    I had ask this question of you before but I didn't understand your response. Can you please clearify further. The question is: a skateboarder moving at v = 5 m/s along a horizontal section of a track that is slanted upward by 48° above the horizontal at

    asked by Mary on February 27, 2007
  33. Physics

    A 20lb ball is 1 ft. in diameter and has a angular velocity of 300 rpm when it is 2 ft. away from the plate. The coefficient of rolling friction between the surface and the ball is μs = 0.3. It strikes the 1-ft. high, 10-lb plate that is held in place by

    asked by RON on April 30, 2012
  34. physics

    Two stars are 4.40 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.03 m and just detects these stars as separate objects. Assume that light of wavelength 550 nm is being observed. Also assume that

    asked by Ethan on April 18, 2014
  35. chemistry

    Find the mass of water (H2O) needed to react with 150 grams of potassium (K) 2K(s) + 2 H2O (g)-2KOH +H2(g) How do I get the number of moles in H2O? Desperate to understand this. I got K= 150g./39.0983=3.84 mols of K. Then would it be 3.84(2mols H2O/7.68)

    asked by Teresa on October 27, 2014
  36. Chemistry 101

    A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

    asked by Colin on October 14, 2011
  37. physics

    You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. Unfortunately the archer stands on an elevated platform

    asked by alejandrob on November 17, 2010
  38. chemistry

    A solution of .12 L of 0.160 M KOH is mixed with a solution of .3 L of 0.230 M NiSO4. the equation for this reaction is: 2KOH (aq)+NiSO4 (aq) ----->K2SO4 (aq)+Ni(OH)2 (s) .89 grams of Ni(OH)2 precipitate form I need to know the concentration remaining in

    asked by Colin on October 14, 2011
  39. Religions

    What are two excellent websites dealing with indigenous cultures and/or religions? http://en.wikipedia.org/wiki/Indigenous_peoples Check at the bottom of this webpage for a section called External Links. You'll find many good ones there. If you stick with

    asked by Kailin-Jasm-sis on December 10, 2006
  40. calc volumes

    the basse of a solid S is the region enclosed by the graph of y=square root (ln x), the line x=e, and the x-axis. if the cross sections of S perpendicular to the x-axis are squares, then the volume of S is. how do i find the side of the squares. because i

    asked by david on December 5, 2006
  41. physics simple harmonic motion

    A particle moving in simple harmonic motion passes through the equilibrium point (x=0) 8 times per second. At t=0 its velocity at x=0.015m is negative. It travels 0.6m in a complete cycle. The particle's position as a function of time is described by the

    asked by byu on September 6, 2016
  42. physics

    If one micrometeorite (a sphere with a diameter of 2.3 10-6 m) struck each square meter of the Moon each second, estimate the number of years it would take to cover the Moon with micrometeorites to a depth of one meter? Hint: Consider the volume of a

    asked by Anonymous on January 21, 2011
  43. Anology

    4 letter word starting with scr spr or str - brother is to mother as fly is to - - - - Well, scry, stry, and spry are all words, but I guess spry works the best.??? I can't find scry or stry in my dictionary. I don't see the analogy between spry and fly.

    asked by Katelyn on January 2, 2007
  44. Physics

    The United States and South Korean soccer teams are playing in the first round of the World Cup. An American kicks the ball, giving it an initial velocity of 3.6 m/s. The ball rolls a distance of 5.0 m and is then intercepted by a South Korean player. If

    asked by Mariam on October 12, 2017
  45. biology

    A plant whose reproductive parts produce nectar is also most likely to a produce sweet-tasting fruit. b have no parts that can perform photosynthesis. c have brightly colored reproductive parts. d rely on wind pollination. e suffer significant seed loss to

    asked by Sarah on February 23, 2009
  46. algebra2

    solve the equation: First: x + 3y = 5 Second: 3x - y = 5 should i use substitution or add them? "First" + 3 times "Second" eliminates y: x + 3y + 3*(3x - y) = 5 + 3*5 ---> 10 x = 20 ----> x = 2 Inserting in "First" gives: 2 + 3 y = 5 ---> 3 y = 3 ----> y =

    asked by ann on July 26, 2007
  47. physics

    2 cars of equal mass m collide at an intersection. Driver E traveled eastward and driver N northward. After the collision, 2 cars remain joined together and slide, before coming to a rest. Police measured the skid mark length d to be 9metres. Coefficient

    asked by Kim on May 3, 2007
  48. physics

    A toy cannon fires a .11 kg shell with initial velocity vi=10m/s in the direction 52 degrees above the horizontal. The shell's trajectory curves downward because of gravity, so that time t=.61 s the shell is below the straight line by some vertical

    asked by JJ on October 12, 2012
  49. U.S. History-PLEASE HELP!!!

    i need to find an example of something very specific that relates to the quote "America isn't supposed to have a master, that's not what it was built on. people should be their own master." i thought something to do w/ the frontier in the 1800s, and i

    asked by INEEDHELP!!! on February 1, 2007
  50. physics

    Two stars are 2.4 × 1011 m apart and are equally distant from the earth. A telescope has an objective lens with a diameter of 1.72 m and just detects these stars as separate objects. Assume that light of wavelength 590 nm is being observed. Also, assume

    asked by Ashley on May 7, 2013
  51. physics

    A 5.11-kg pendulum bob, at a height of 0.730 m above the floor, is released and swings down to the ground where it collides elastically with a 2.29 kg block initially at rest. The block then slides up a 31.0° incline. Find how high up the incline the

    asked by patt on April 3, 2013
  52. physics

    You are watching an archery tournament when you start wondering how fast an arrow is shot from the bow. Remembering your physics, you ask one of the archers to shoot an arrow parallel to the ground. Unfortunately the archer stands on an elevated platform

    asked by bobjahng2 on November 16, 2010
  53. Physics - Voltage across a wire of unknown length

    Four copper wires of equal length L are connected to a 100V source. Their cross-sectional area are 1cm^2, 2cm^2, 3cm^2, and 4cm^2. Find the voltage across the 3cm^2 wire. Leave your answer in terms of L, it should cancel out. - So I tried using and

    asked by Kid on March 25, 2017
  54. English 2

    I have to do a 1000 word essay paper detailing the research of a career that is of interest to me.I picked a teacher but cant find any info on it. I have to get things like salary scale, retirement plans,daily duties,typical hours worked,types of training

    asked by Tim on December 3, 2006
  55. Physics

    Airplanes are noisy things. For example, if you stand really close to a runway, a military jet can produce a sound intensity of about 100 W/m^2 at a distance of 30 m from the plane (this is beyond painful noise). You live near a military airport and want

    asked by Gurudev on March 27, 2013
  56. english/punctuation

    Add punctuation to the paragraph. You must be kidding, how can I possibly finish all this homework, and still find time to clean up this mess! I never imagined that one puppy could create so many messes in just a few hours! Dind't I lock the gate before I

    asked by Marie on February 1, 2010
  57. Physics 10th Grade

    Hi im kinda confused still on Pulley systems and hoping someone can help me out. The two masses (m1 = 5.5kg and m2 = 3.0kg) in the Atwood's machine shown in The Figureare released from rest, with at a height of 0.89m above the floor. When m1 hits the

    asked by Claire on November 5, 2009
  58. Physics

    Airplanes are noisy things. For example, if you stand really close to a runway, a military jet can produce a sound intensity of about 100~W/m^2 at a distance of 30 m from the plane (this is beyond painful noise). You live near a military airport and want

    asked by Steve on March 27, 2013
  59. Physics

    Suppose you're an astronaut and you're sitting in a 6000kg space capsule riding on a 4000 m x 8000 m sail (whose mass is included in the 6000 kg). You're orbiting in the vicinity of a distant bright hot star giving off light with an intensity 8 x 10^9

    asked by M on May 7, 2015
  60. REPOST

    CAN someone please give me a good idea as how to find information for this problem: we are supposed to relate physics to movies, and state mistakes or errors found in the movies based on physics principles. I am trying to do Willy Wonka the 1971

    asked by Please McHelp me! on December 8, 2007
  61. Stats

    I am working on a review sheet and got everything except for this one. I am not sure whether to use z or t. The number of hours per week that high school juniors watch TV is normally distributed with a mean of 8 hours and a standard deviation of 2 hours.

    asked by Joe on May 21, 2014
  62. U.S.History

    couldn't find the answr to this one in my book: Under popular sovereignty, the decision whether or not to allow slavery in a territory was mady by a. Congress b. the voters of the territory c. the Supreme Court d. the President this is all my book says:

    asked by y912f on February 2, 2009
  63. english/punctuation

    Add punctuation to the paragraph. You must be kidding! How can I possibly finish all this homework, and still find time to clean up this mess? I never imagined that one puppy could create so many messes in just a few hours! Didn't I lock the gate before I

    asked by Marie on February 1, 2010
  64. business

    Im post this question again. Please, let there be some response You are employed in the marketing department of The Mobile Phone Network, a retail chain selling mobile phones. The company wants to find out more about its customers. Specifically, the

    asked by VICTOR on February 16, 2009
  65. math

    Does anybody understans this? You have been assigned a task of estimating the cost of a tree removal. The cost is $25 per foot, up to 50 feet; above that, the cost increases to $50 per foot. You drop the kids off at the swimming pool and see some of your

    asked by Anthony on January 21, 2012
  66. physics

    Airplanes are noisy things. For example, if you stand really close to a runway, a military jet can produce a sound intensity of about 100 W/m2 at a distance of 30 m from the plane (this is beyond painful noise). You live near a military airport and want to

    asked by ayan on March 29, 2013
  67. Writing

    Review the feedback provided by the Center for Writing Excellence and make corrections to your paragraph. When doing so, understand that WritePointSM may be helpful but is not always correct. Make the corrections you feel are appropriate. Underline topic

    asked by Cic on August 24, 2011
  68. chemistry

    You were given 25.00 ml of an acetic acid solution of unknown concentration. You find that it requires 29.60 ml of a 0.1050 M NaOH solution to exaclty neutralize this sample. A) What is the molarity of the acetic acid solution? B) what is the percentage of

    asked by Rema on October 20, 2011
  69. Physics

    A certain lightbulb has a tungsten filament with a resistance of 28 Ω when cold and 144 Ω when hot. If the equation R = R0 [1 + α ∆T ] can be used over the large temperature range involved here, find the temperature of the fila- ment when it is hot.

    asked by Aj on October 31, 2012
  70. Chemistry Math

    A 0.4671g sample containing sodium bicarbonate was titrated with HCL requiring 40.72ml. The acid was standardized by titrating 0.1876g of sodium carbonate FW 106mg/mmol requiring 37.86ml of the acid. Find the percentage of NAHO3 FW 84mg/mmol in the sample

    asked by Fai on November 18, 2012
  71. Calculus study

    A baseball team plays in a stadium that holds 52000 spectators. With the ticket price at $9 the average attendance has been 21000. When the price dropped to $6, the average attendance rose to 26000. a) Find the demand function p(x), where x is the number

    asked by Juan on March 30, 2015
  72. quantitative methods II

    A firm that produces car components has a fixed costs of $ 40,000 per month and a variable cost of $ 24 per component.it sells its product at a price of $ 44 per component,regardless of the number of units sold. (i)find the break-even level of monthly

    asked by paulus johannes on May 20, 2016
  73. exponential and logarithmic graphs question

    hi, i desperately need help solving this question: Find the values of A and k if the general equation of the graph shown is y=Ae^kx where the graph goes through the points (-1,-4) and (-2,-10) do i solve it using simultaneous equations? because i have

    asked by elle on March 21, 2007
  74. Math

    Find the volume of the solid generated by revolving the region bounded by y=x+(x/4), the x-axis, and the lines x=1 and x=3 about the y-axis. I've drawn the graph and I understand which part is being rotated, but I'm having trouble setting up the equation.

    asked by Eliana on April 30, 2015
  75. Chm 2

    The question asks, Consider the following weak acids and their Ka values Acetic acid Ka = 1.8x10^-5 Phosphoric acid Ka = 7.5x10^-3 Hypochlorous acid Ka = 3.5x10^-8 What weak acid-conjugate base buffer system from the acids listed is the best chouce to

    asked by Kyle on October 15, 2013
  76. Physics

    An object is 21 cm in front of a diverging lens that has a focal length of -13 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 1.5? my work: 1/di=(1/-13)-(1/21) di=-8.02 m=8.02/21 m=.381

    asked by Abigail on April 8, 2015
  77. Chemistry

    I NEED HELP ASAP Here's the problem I'm struggling with: When 1.00 mole of ethlyene (C2H4) is burned at constant pressure, 1410 kJ of energy is released as heat. Calculate delta H for a process in which 10.0 g of ethlyene is burned at constant pressure.

    asked by Ian on February 18, 2016
  78. Safety

    Do other countries have individuals who played a significant role in starting safety prgrams in their countries? NEED REFERENCES Thanks! sometimes but not very much umm I need a better answer than that Thank you for using the Jiskha Homework Help Forum

    asked by Ashley on April 9, 2007
  79. chemistry

    A solution is prepared by dissolving 0.2222 (¡¾0.0002) g of KIO3 in 50.00 (¡¾0.05) mL. (i) Calculate the molar mass of KIO3 with its associated uncertainty to the correct number of significant figures. (ii) Find the molarity and its uncertainty with an

    asked by Hobson on March 28, 2010
  80. Chemistry

    Calculate the initial molarity of KNH2 and the molarities of K+, NH3, OH-, and H3O+ in an aqueous solution that contains 0.75 g of KNH2 in 0.255 L of solution. You may ignore the reaction of NH3 with water. I already found the initial molarity, but I am

    asked by Trixie on February 22, 2010
  81. Statistics Please Help

    Hi Ms. Sue I was wondering if you could give me some advise in doing explain and unexplain variation and least-squares regression line. I know how to compute the numbers, but I am having a problem with: say there is 3.0270, 30.0463 and 33.1120. I sometimes

    asked by Mary Ann on September 8, 2015
  82. Algebra 2

    For the first time customers, a bank will open an account with $25 included. This bank also charges a monthly $2.95 service fee on the account. Write an equation that shows the balance B after m months, assuming no other activity is made on the account.

    asked by Kelsey on October 12, 2013
  83. Physics

    An artillery crew demonstrates its skill by firing a shell at an angle of 69 deg and then lowering the gun barrel and firing a second shell at a smaller angle of 22 deg in such a way that the two shells collide in midair. The initial velocity of the shells

    asked by Madeleine on October 7, 2015
  84. Pre-Calc

    medication duration using the function of e through time lapse problem D(h)=8e(up carrot)-0.31(h) find med level at 1 hour- no problem 5.88mg. but every time I insert 4 for the 4 hours I get a larger number... much larger indicting the med level has gone

    asked by BecKi on February 21, 2010
  85. math. PLEASE HELP.

    Question: If A= 29 degrees and a= 4.6, find c. There is a diagram shown in the textbook. b is adjacent, c is the hypotenuse, and a is opposite. I know I'm suppose to use SOH CAH TOA, and i tried using tan, but Im not getting the correct answer. i looked in

    asked by Eunice on November 15, 2016
  86. Math

    A piece of a broken circular gear is brought into a metal shop so that a replacement can be built. A ruler is placed across two points on the rim, and the length of the chord is found to be 14 inches. The distance from the midpoint of this chord to the

    asked by Matty on April 28, 2017
  87. chem

    Consider the following reaction: 2 CH3OH + 3O2 to form 2 CO2 + 4 H20 Each of the following molecular diagrams represents an initial mixture of the reactants. How many CO2 molecules would be formed by complete reaction in each case? How do I use the

    asked by david on March 1, 2007
  88. History

    Compare and contrast the views of Thomas Jefferson and Alexander Hamilton on the Constitution, National Bank, and Foreign Affairs. Anyone please i got to write an essay on this and cant find the information i need. PLEASE HELP ASAP Search for the word

    asked by Please HELP on January 20, 2007
  89. jik

    A carton of soy milk states on the label that it contains 956 mL. The volume of soy milk in 9 randomly chosen cartons is measured and the mean found to be 958.72 mL. Assume that the cartons are filled so that the actual amounts are normally distributed

    asked by farita on October 10, 2010
  90. calculus

    The net monthly profit, in dollars, from the sale of a certain item is given by the formula P(x) = 10^6[1 + (x-1)e^0.001x], where x is the number of items sold. a) Find the number of items that yield the maximum profit. At full capacity, the factory can

    asked by kim on April 29, 2018
  91. staTS

    A carton of soy milk states on the label that it contains 956 mL. The volume of soy milk in 9 randomly chosen cartons is measured and the mean found to be 958.72 mL. Assume that the cartons are filled so that the actual amounts are normally distributed

    asked by gs on October 10, 2010
  92. ela

    we are reading catching fire. we have a mini project to do. there are 17 questions and i couldn't find 4. so my questions are : 1. what is healing capacity of salt water? 2. why does salt water have those positive effects on us? 3. what is saline solution

    asked by shweta on January 23, 2011
  93. Calculus

    A rectangular swimming pool is to be built with an area of 1800 square feet. The owner wants 5-foot wide decks along either side and 10-foot wide decks at the two ends. Find the dimensions of the smallest piece of property on which the pool can be built

    asked by George on October 25, 2008
  94. Environmental Engineering

    Consider the air over a city to be a box 100km on a side that reaches up to an altitude of 1.0 km. THe air is blowing into the box along one of its sides with a speed of 4 m/s. Suppose an air pollutant with a reaction rate of K = 0.20/hr is emitted into

    asked by Jimmy on September 19, 2011
  95. need help in math,

    Translate to a system of equations and solve using the addition method. The sum of two numbers is88. The difference is 22.Find the numbers? My answer: I started but i think that i am wrong. x + y = 88 y = -x +88 y = -1x + 88 now once i substituted x -1x +

    asked by jasmine20 on January 13, 2007
  96. Geometry / Algebra 1

    (a) The surface area of the prism shown is 314 square meters. Write an equation that u can solve to find the value of w. side a=wm b=8m and c=(w+4)m (on the picture) I'm guessing u use the formula surface area=2ab+2bc+2ac??? Well if so I need all that

    asked by Ë̤T̤̈Ẅ̤ä̤z̤̈Ḧ̤ë̤r̤̈ë̤ ⍨ on September 5, 2013
  97. Physics

    A boy of mass 49.4 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.3 m/s. The boy falls off the skateboard, and his center of mass moves forward at a speed of 10.9 m/s. Find the final velocity of the skateboard.

    asked by Kellie on October 16, 2011
  98. Math

    PLEASE HELP!!! In a basketball free-throw shooting contest, the points made by Sam and Wilbur were in the ratio 7:9. Wilbur made 6 more points than Sam. find the number of points made by each...... I'm so confused

    asked by Jahnay on October 18, 2011
  99. artist

    I am suposed to incorporate the answer to this question into a short repot on raphael. What makes a Raphael a Raphael? I can't find the answer anywhere on the interent. It is a title of a book so all I get is places to get the book not the answer to the

    asked by Riley on April 15, 2009
  100. Calculus

    Find the specific solution of the differential equation dy/dx = 4y/x^2 with condition y(−4) = e. y equals negative 1 minus 4 divided by x y equals negative 1 times e raised to the 1 over x power y equals e raised to the negative 4 over x power None of

    asked by nan on March 10, 2016

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