1. physics

    Two charges are placed on the x axis. One of the charges (q1 = +9.4 µC) is at x1 = +3.1 cm and the other (q2 = -22 µC) is at x2 = +9.3 cm. Find the net electric field (magnitude and direction) at x = +6.5 cm. (Use the sign of your answer to indicate the

    asked by michelle on January 8, 2011
  2. Chemistry

    I am really stuck, I have tried to look these up everywhere and I keep getting different answers. I have to find the balanced equations for: Magnesium + Citric acid Zinc + citric acid Copper + Citric acid Manganese + Citric acid If I can have some help it

    asked by Franky on October 8, 2011
  3. ap calc

    Consider { a sin x + b, if x ≤ 2π { x^2 - πx + 2, if x > 2π A.) Find the values of a and b such that g(x) is a differentiable function. B.) Write the equation of the tangent line to g(x) at x = 2π. C.) Use the tangent line equation from Part B to

    asked by Billy on December 22, 2017
  4. Social Studies

    A traditional fisherman of the Pacific might find the Internet useful by: A. Using the Internet to look at currents and weather reports. B. Using the Internet to research what fish were bought for the most money. C. Using the Internet allows the fisherman

    asked by Anonymous on May 17, 2014
  5. Math

    Vincent went to a pizza restaurant. A vegetable pizza costs $8 and a chicken pizza costs $12. Find an inequality to determine the number of pizzas he can buy along with one vegetable pizza if he has $140 to spend.

    asked by Calvin J. on January 11, 2019
  6. Geometry

    A person who is 5 feet, 6 inches (5.6 feet) tall casts a shadow (from N to S) that is 12 feet long. The distance along the ground from the person (N) to the flagpole (G) is 18 feet. Find the height of the flagpole (FG) showing all calculations.

    asked by David on January 17, 2014
  7. Math

    Jaleah has a 2-pound package of flour. She uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express you answer as a decimal.

    asked by Armida on May 19, 2019
  8. 8th grade

    Ryan left musuem and drove south. Gab left 3 hrs later driving 42 km/h to catch up to him. After 2 hrs gab finally caught up. find Ryan's averae speed?

    asked by nancy on October 15, 2010
  9. math

    (a) Make a table of values rounded to two decimal places for the function f(x) = ex for x = 4, 4.5, 5, 5.5, and 6. Then use the table to answer parts (b) and (c). (b) Find the average rate of change of f(x) between x = 4 and x = 6. (Round your answer to

    asked by katy on February 13, 2017
  10. PRE ALGEBRA

    solution to electrical poles that carry electrical wire seem to get smaller the further away you are. Find the apparent height of each pole if the tallest pole is 50 feet tall and there is 100 feet between poles.

    asked by BEV on January 23, 2014
  11. math

    nine solid metal spheres, each of radius 2 cm, are dropped into a cylinder partly filled with water. If the spheres are totally immersed, find the rise in the water if the radius of the cylinder is 3cm

    asked by boo on October 2, 2011
  12. Math

    Manuela is having mugs made for a fundraiser. The cup company will make them for $4.50 each with no set-up charges. Write and solve an equation to find how many mugs Manuela can have made for the two company prices to be the same. *** Please help :)******

    asked by Anonymous on January 10, 2014
  13. Math

    20.Proma earned $82 last week. She earned $6 each hour and received a bonus of $10 for exceptional work. Which equation can be used to find h the number of hours Proma worked last week A.6h+10=82 B.6h-10=82 C.10h+6=82 D.10h-6=82 C

    asked by Jerald on May 28, 2013
  14. Physics

    A box of mass m = 0.20 kg slides across frictionless tabletop from rest, with 2.5 m/s2 acceleration. The length of the tabletop is L = 2.00 m and its height is H = 1.50 m. The box then slides off the edge and hits the floor at some distance away, Find the

    asked by master on June 9, 2012
  15. math

    a vertical flagpole casts a shadow of 12ft long at the same time that a nearby vertical past 8ft casts a shadow 3ft long. Find the height of the pole

    asked by ann on November 22, 2014
  16. Algebra

    An airline has 82% of its flights depart on schedule. It has 65% of its flight depart and arrive on schedule. Find the probability that a flight that departs on schedule also arrives on schedule. Round the answer to two decimal places. A. 0.80 B. 0.17 C.

    asked by Izzy on April 29, 2019
  17. math

    a wire of 100cm is bent to from a squre. if a rectangle is formed with same wire having length 5cm more and breadth 5cm less than each side of the square find the difference between the area of the squre and rectangle

    asked by vaidehi on March 29, 2013
  18. math

    victoria has a 2-pound package of flour. she uses 2/5 of the flour to make a pizza. She then uses 3/10 of the remaining flour to make bread. Find the weight of the package of flour that she has left. Express answer in decimal.

    asked by robin on February 27, 2019
  19. physics

    A series circuit consist of 6 ohms resistor,ammeter and battery. The current in the circuit is 0.5A but drops to 0.3A when another resistor of 8ohms is added in series. Find the battery e.m.f and its internal resistance?

    asked by davies on November 19, 2015
  20. Home work help

    I need help for this math question: Can you provide the steps on how you got the answer to this question? A bank requires a monthly payment of $33.45 on a $2500 loan. At the same rate, find the monthly payment on a $10,000 loan.

    asked by Lisa on November 10, 2008
  21. Math

    Find the cell phone plan that has the best dollar per minute rate. A) 240 minutes for $50 a month B) 140 minutes for $70 a month C) 200 minutes for $45 a month D) 800 minutes for $250 a month

    asked by Mehneedhalp on December 11, 2018
  22. Physics

    A proton is released from rest in a uniform electric field. After the proton has traveled a distance of 10.0 cm, its speed is 1.4 x 106 m/s in the positive x direction. Find the magnitude and direction of the electric field.

    asked by Chloe on July 17, 2011
  23. Math probability - HELP

    A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

    asked by Bryan on January 23, 2014
  24. CHEMISTRY

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  25. Math 6b

    The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a consonant the first time and a vowel the second time if the spinner is spun twice My spinner has 3 parts, N E and U A:2/3 B:2/9 C:3/4 D:5/9

    asked by Jaden on May 19, 2017
  26. Calculus 2

    i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

    asked by Kyle on March 16, 2010
  27. Physics

    Please someone help me I'm desperate!!!! Two steel guitar strings have the same length. String A has a diameter of 0.59 mm and is under 420.0 N of tension. String B has a diameter of 1.3 mm and is under a tension of 840.0N . Find the ratio of the wave

    asked by Frank on November 20, 2009
  28. algebra

    A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|queen) Thank you

    asked by Mary Ann on May 26, 2014
  29. Math

    A bag contains 3 red, 5 yellow, 2 green and 6 blue marbles. If one marble is chosen at random, replaced, and then a second marble is chosen at random, find the probability of obtaining 2 marbles of different colors.

    asked by Bryan on January 22, 2014
  30. algebra/Did I do this right

    A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) I came up with 12/52 Thank you

    asked by Mary Ann on May 26, 2014
  31. algebra/Can you see if I am right

    A single card is drawn from a standard deck of cards. Find the probability if the given information is known about the chosen card. A face card is a jack, queen, or king. P(face card|king) 4/52 Thank you

    asked by Mary Ann on May 27, 2014
  32. algebra

    Jose traveled to San Diego at an average rate of 50 mph. Carlos made the same trip in one hour less time at an average rate of 60 mph. Find the distance of the trip.

    asked by Brianne on September 7, 2011
  33. English

    Thank you for your help but I have one more question about those sentences. On the plagiarism website, it says it’s plagiarism if it has the same sentence structure. In some residents must relocate for a position and the pediatrician may have to move to

    asked by Wes on February 27, 2018
  34. Linear Equations

    Can you check these thanks. Linear Equations Directions: Write each equation in standard form. 1. y=7x-5 Answer: 7x-y=5 2. y=3/8+5 (3/8 is a fraction) Answer: 3x-8y=40 3. x= -2/7y+3/4 Answer: x+14y=12 4. 3y-5=0 Answer: x+3y=0 Find the x-intercept and

    asked by Rachel on October 2, 2010
  35. Maths

    in the following rings find all units, Zero divisors and idompotent elements and determine whether the ring is a field. a)Z2 b)Z5 c)Z10 NB z is integers( positive or negatives including zero z is integers( positive or negatives including zero

    asked by JESS on November 20, 2012
  36. Calculus 2

    i need to find the amount of gallons of different water heights on a Horizontal tank with Elliptical Cross-Sections minor axis height is 4 minor axis length is 6 tank length is 16

    asked by Kyle on March 16, 2010
  37. algebra

    find the theoretical probability of each outcome. 1. randomly choosing a day of the week and it is a weekend 4. randomly choosing the letter N from the letters in NUMBER 11. the probability of a thunderstorm is 80%. what are the odds that there will be a

    asked by s on April 25, 2013
  38. Chemistry

    Iron combines with oxygen and water from the air to form rust. If an iron nail were allowed to rust completely, one should find that the rust weighs: I know the answer is the rust should way more than the nail it came from but can someone explain why

    asked by Jessica on January 17, 2014
  39. physics(HELP..)

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  40. physics

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  41. 6th grade math

    Which proportion can you use to find the width of a full size railroad track? of 1 millimeter for every 87 millimeters in a full size train. The model railroad cars run on a track that is 16.5 mm wide. f) 1/87 = x/16.5 g) 1/87 = 16.5/x h) 1/x= 87/16.5 j)

    asked by Suzanne on April 23, 2011
  42. physics

    A diatomic ideal gas is heated at constant volume until its pressure becomes 3 times.it is again heated at constant pressure until its volume is doubled.find the molar heat capacity for the whole process?

    asked by dukesouvik on May 16, 2013
  43. calculus

    The height (in feet) of a skydiver at time t (in seconds) after opening his parachute is given by h(t) = 4000 – 19t. Find the skydiver's velocity after the parachute opens. The answer should be in feet per seconds. I would appreciate if somebody

    asked by Mark on September 21, 2010
  44. Physics

    The moment of inertia of an asteroid rotating about its own axis is 5.00 ! 10 4 kg"m2. Its angular velocity is 40.0 rad/s. If a force acts on the asteroid for 0.100 s, increasing the angular velocity to 48.0 rad/s, find its magnitude

    asked by HELP on December 9, 2011
  45. MATHS ASAP!!!!!

    At the x axis, y is zero. So if the x intercept is (1,0) then (y-a)^2=x + b (0-a)^2=1 + b Now the vertex. (y-a)^2=x +b (2-a)^2= 0 + b or these two equations are.. a^2= 1+b or b= a^2 - 1 putting this into the second equation. 4-4a + a^2=a^2-1 solve for a,

    asked by bobpursley on November 2, 2006
  46. COLLEGE PHYSICS

    Find the x and y coordinates of the center of gravity of a 4ft by 8ft uniform sheet of plywood with the upper right quadrant removed? with out mass of the plywood how do go about calculating the center gravity for x/y coordinates?

    asked by natali on November 16, 2007
  47. Physics

    A man using a 70 kg garden roller on a level surface exerts a force 20 kgf at 45 degrees to the ground . Find the vertical force of the roller on the ground if he ; a) pulls the roller. b) pushes the roller.

    asked by Joseph on January 10, 2011
  48. calculus--please help!!

    find the complete zeros of the polynomial function. Write f in factored form. f(x)=3x^4-10x^3-12x^2+122x-39 **Use the complex zeros to write f in factored form.** f(x)= Please show work

    asked by NayNay on December 30, 2012
  49. Geometry

    A right triangle has exterior angles at each of its acute angles with measures in the ratio 13:14. Find the measure of the smallest interior angle of the triangle. 40 (degrees) 50 (degrees) 130 (degrees) 140 (degrees) Please help? Thanks

    asked by SkatingDJ on October 21, 2015
  50. Algebra

    The volume of a sphere is given by: V=4/3 pie r cubed. Use the formula, and show your workings, to find out what happens to the volume of a sphere if r is halved and r is trippled? Please help as this has just completly lost me, i end up with V = 4/3 Pie r

    asked by StephanieNZ on March 21, 2010
  51. math

    Suppose that people's heights (in centimeters) are normally distributed, with a mean of 170 and a standard deviation of 5. We find the heights of 80 people. (a) How many would you expect to be between 170 and 175 cm tall? (b) How many would you expect to

    asked by Andrew on March 10, 2013
  52. chemistry - Molar enthalpy

    When 10.0 g of KOH is added to 100.0 g water, the solution's temperature increases from (25.18 C) to (47.53 C). What is the molar enthalpy of solution for KOH? i tryed q=(m)x(c)x(delta T) didn't really work. i got 22.35 J do i use that to find the molar

    asked by Rose Bud on February 29, 2012
  53. Math

    The rectangular coordinates of a point are given. Find two sets of polar coordinates for the point for 0 is less than or equal to Q is less than 2pi. (-3,-3) My answers were (-3sqrt2, pi/4) and (pi/4, -3sqrt2). My teacher said that my answers have to be in

    asked by Abbey(Please help) on May 5, 2010
  54. Math

    How could you use the product 108 and 4 to find the product of 324 and 4? How would I know that you need to multiply times 3. How are the children given directions to work on this problem. I know understand 108 goes into 324 3 times. But are they asked to

    asked by Margarita on February 2, 2009
  55. electricity

    A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

    asked by Antony need some help here on November 23, 2013
  56. maths

    A man drives from ibadan to Oyo, a distance of 48km in 45 minutes. If he drives at 72km/h where the surface is good and 48km/h where it is bad, find the number of kilometres of good surface.

    asked by somay on April 26, 2016
  57. Math

    The rectangular coordinates of a point are given. Find two sets of polar coordinates for the point for 0 is less than or equal to Q is less than 2pi. (-3,-3) My answers were (-3sqrt2, pi/4) and (pi/4, -3sqrt2). My teacher said that my answers have to be in

    asked by Abbey(Urgent Please help) on May 5, 2010
  58. Math

    There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

    asked by Raf on October 27, 2011
  59. Calculus

    Find the total mass of the triangular region with coordinates (-1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5+x grams/c^m2. I know that to get the total mass i have to do density* lenght and ingegrate, but I

    asked by Caroline on October 26, 2011
  60. math

    The locus of a point whose distance from point (0,5) is always 3/4 of its distance from the line Y=8 is an elipse. Find the equation,centre, length of the major axis, length of the minor axis and the foci of the ellipse.

    asked by saud on December 18, 2016
  61. bridge

    Vincent went to a pizza restaurant. A vegetable pizza costs $8 and a chicken pizza costs $12. Find an inequality to determine the number of pizzas he can buy along with one vegetable pizza if he has $140 to spend.

    asked by Summer on September 6, 2016
  62. electromagnets

    A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

    asked by Jason on November 22, 2013
  63. Math

    Ms. Snyder wants to buy a television at an electronics store. All televisions at the store are 3/4 of the original price, p. She has a $40 discount coupon she will use during the sale. What equation should Ms. Snyder use to find the final price, f, of a

    asked by Jessi on February 25, 2009
  64. Physics

    A 10.3 kg block of ice slides without friction down a long track. The start of the track is 4.2 m higher than the end of the track, and the path traveled is 8.0 m. Find the speed of the block when it reaches the end of the track.

    asked by Breezerlea on February 22, 2011
  65. Physics

    A 0.25 kg ball moving at 19.0 m/s is hit by a bat. The ball leaves the bat at a speed of 38 m/s in the opposite direction. If the bat is in contact with the ball for 0.01 s, find the magnitude of the average force exerted on the ball by the bat.

    asked by kt on July 10, 2018
  66. Plane Trigonometry

    A compact disk is 12 cm in diameter & rotates at 100 rpm when being played. The hole in the center is 1.5 cm in diameter. Find the speed in cm/min of a point on the disk & the speed of a point on the inner edge.

    asked by Willoby on January 4, 2011
  67. Physics electric potential energy difference

    A current loop with radius 20 cm and current 2 A is in a uniform magnetic field of 0.5 T. Considering all possible orientations of the loop relative to the field, what is the largest potential energy difference (in Joules) you can find between two

    asked by Carl on November 22, 2013
  68. Physic

    Child 1 is 2.0 m from the axis of rotation, and child 2 is 1.5 m from the axis. The merry-go-round completes one revolution every 4.8 s. Find the angular speed of each child. (Answer: For both child is 0.278rev/s) Please show all work on how to get the

    asked by Anonymous on April 30, 2014
  69. math

    The students in Mr. Stevens class are having a turtle race. The race will last 2 minutes. Find the distance from the start each turtle will be at the of the race.Rex 2/3 speed (in inches per second).Whatwas the distance at the end of the race.

    asked by ttuuffyy on April 10, 2013
  70. Statistics

    Find the interquartile range given these data points: 57,66,69,71,72,73,74,77,78,7879,79,81,81,82,83,83,88,89,94. When I used the TI-84 calculator, I got ... Q1=72.5 Q3=82.5 IQR=Q3-Q1=82.5-72.5=10 But.. When I created a stem and leaf plot I found that Q2=

    asked by Sanaya on January 7, 2016
  71. Math

    There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

    asked by Raf on October 27, 2011
  72. Statistics

    Find the interquartile range given these data points: 57,66,69,71,72,73,74,77,78,7879,79,81,81,82,83,83,88,89,94. When I used the TI-84 calculator, I got ... Q1=72.5 Q3=82.5 IQR=Q3-Q1=82.5-72.5=10 But.... When I created a stem and leaf plot I found that

    asked by Sanaya on January 7, 2016
  73. physics

    Two blocks of masses is m and 2m are held in the equilibrium on a frictionless incline. In terms of m and x, find the magnitude of the tension t1 in the upper cord and the magnitude of the tension t2 in the lower cord connecting two blocks.

    asked by Maria on August 11, 2015
  74. Math

    There are many pairs of numbers (positive and negative) of which the sum is worth the unit. Of those, find the 2 numbers whose sum, double the square of the first number and the square of the 2nd number would give a minimal value.

    asked by Raf on October 27, 2011
  75. Math

    are the events of drawing a knight from the bag of white pieces and drawing a pawn from the bag of black pieces dependent or independent events? find the probability of this compound event.

    asked by Dema on March 1, 2014
  76. English

    1. I expect to go abroad. 2. I hope to see you again. 3. I wish to go to egypt. 4. Don't you care to buy a pet? 5. He decided to reenter the burning building. 6. He chose to be a fire fighter. 7. I mean to do a business on the Internet.  8. Emily promised

    asked by John on November 14, 2008
  77. Physics

    A child on a sled is initially at rest on an icy horizontal surface. The sled is pushed until it reaches a final velocity of 7.00 m/s in a distance of 11.2 m. The coefficient of friction between the ice and runners of the sled is 0.200, and the weight of

    asked by Rose Foley on October 5, 2014
  78. calc. 1

    You are designing a poster with area 625cm^2 to contain a printing area having margins of 1cm at the top and bottom and 5cm on the sides. Find the largest possible printing area. Round your answer to the nearest four decimal place. I am aware that i should

    asked by mike on March 24, 2016
  79. physics

    A cylinder with a movable piston holds 2.75 mol of argon gas at a constant temperature of 295 K. As the gas is compressed isothermally, its pressure increases from 101 kPa to 121 kPa. Find (a) the final volume of the gas, (b) the work done by the gas, and

    asked by Matthias Schwartzkopf on October 31, 2011
  80. Finance

    Cost Allocation It started with a letter Statendam, November 5, 2001 To: Henk Jacobs, director finance department From: Bob Jansen, manager refuse collection department Dear Henk, Someone told me that you had to see the teachers of one or your children

    asked by Math dummy on March 16, 2012
  81. Math

    A box of Brand A laundry detergent washes 20 loads of laundry and costs $6. A box of Brand B laundry detergent washes 15 loads of laundry and costs $5. In the ratio tables that follow, fill in equivalent rates of loads washed per dollar. Include some

    asked by Ginny on March 31, 2019
  82. Math

    Find the sum of all 3-digit positive numbers N that satisfy the condition that the digit sum of N is 3 times the digit sum of N+3.

    asked by Hale on March 19, 2013
  83. bearing

    Three towns p, q and r are such that the distance between p and q is 50km and the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the (a)distance between q and r (b)bearing of r from q

    asked by bearing question corrected on January 7, 2010
  84. Math

    Given that Line segment CP is an angle bisector of

    asked by Anna on August 23, 2017
  85. Elementary Mathematics

    The probabilities that May, Lily and Mary will pass a test are 2/5, 7/10 and 9/10 respectively. Find the probability that (i) At least one of them will pass the test, (ii) 2 of the girls will pass the test

    asked by Seow Kian on September 12, 2015
  86. bearing

    Three towns p, q and r are such that the distance between p and q is 50km and the distance between p and r is 90km. If the bearing of q from p is 075 and the bearing of r from p is 310, find the (a)distance between q and r (b)bearing of r from q

    asked by Alero on January 7, 2010
  87. science

    Consider the diprotic acid H2A with K1 =1.00 X 10-4 and K2 = 1.00 X 10-8 . Find the pH and concentrations of H2A, HA- , and A2- in: (a) 0.100 M H2A; (b) 0.100 M NaHA; (c) 0.100 M Na2A.

    asked by mmm on September 20, 2015
  88. physics

    Find the electric potential energy for the following array of charges: charge q1 = +3.0 µC is located at (x, y) = (0.0, 0.0) m; charge q2 = +3.0 µC is located at (4.0, 3.0) m; and charge q3 = −1.0 µC is located at (0.0, 3.0) m.

    asked by anybody? on January 31, 2012
  89. calculus

    find the distanced(p_1&P_2) between points P_1 and P_2. P_1=(4,-5) and P_2=(3,4) plz show work

    asked by Heather on December 9, 2012
  90. algebra

    The product of the page numbers on two facing pages of a book is 110. Find the page numbers. the page numbers are:

    asked by rr on May 18, 2012
  91. maths

    A and B can do a piece of work in 10 days, B and C in 15 days and A and C in 12 days. A,B and C work together to finish the work. If they are paid 15000, find the share of each?

    asked by kumar on March 10, 2018
  92. math

    A rectangle has a length of 4x and a width of 4x-2. Its perimeter is 12 inches. Find the length and width. Write the equations. What is the length and width?

    asked by lea on March 14, 2012
  93. Algebra

    The width of a rectangle is 2ft less than the length. The area is 8ft^2.Find the length and the width. The width is__ ft. The length is __ ft.

    asked by Nikayla on September 4, 2011
  94. Algebra

    the length of a rectangle is twice the width. The area is 200 yd^2 Find the length and the width. The length is _____ yd The width is ______ yd Could I get help please!!!!

    asked by pj on February 7, 2009
  95. math

    A pile of 108 identical books has a mass of 30 kg. Find (a)the mass of 150 books and (b)the number of books that has a mass of 20 kg.

    asked by Sally on August 2, 2011
  96. Geometry-8th gr

    The perimeter of triangle ABC is 120. LIne segment BD bisects

    asked by Mona on February 1, 2013
  97. Pre-calculus

    Find the interquartile range and the semi-interquartile range of the following data: 42 51 53 53 59 61 75 100 mean=61.75=62 median=56 mode=53 interquartile range=87.5-52=35.5?

    asked by Mary on January 20, 2009
  98. ramjas

    the sum of the digit of a two digit number is 13 and the diffrence btween the number and that form by reversing the digit is 27, find the number...

    asked by ashu on August 12, 2014
  99. math

    a basketball team needs 5 players. the team can choose from a group of 7 players. explain how to find the combinations of players that can be on the team.

    asked by ryan on November 18, 2014
  100. Math

    This problem from China is almost 2000 years old: Find a number that when divided by 3 gives a remainder of 2, when divided by 5 gives a remainder of 3, and when divided by 7 gives a remainder of 4.

    asked by Ashley on April 2, 2014

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