1. Math

    find the sum of 2 1/2 and 2/5

    asked by AJ on October 16, 2015
  2. geometry

    what is value of z if the sum of 9z+9=180

    asked by Anonymous on December 30, 2011
  3. algebra

    the sum of 12 and twice my age

    asked by Anonymous on November 17, 2015
  4. math

    what is the sum of (x^2-3x+2) and (5x^2-3x-8)? how would you solve this???? please help

    asked by lisa on February 21, 2013
  5. Math

    How do you write "3 more than the sum of x and y"

    asked by Morgan on December 8, 2012
  6. Math - Calculus

    Compute the sum: 81 ∑ (2i-1) i=1

    asked by Jaime on April 5, 2017
  7. math

    the sum of 2+4+6...800

    asked by iselle on October 18, 2016
  8. Algebra

    How do you express the sum of 5y-3/9 and 2y-1/2

    asked by beth on May 8, 2011
  9. math

    prove sum(x^2)=n(n+1)(2n+1)/2 from x=1 to x=n

    asked by assma on August 9, 2015
  10. maths

    For an A.P. sum of 2n terms = 3* sum of n terms then sum of 3n terms : sum of n terms = ?

    asked by Anonymous on January 7, 2013
  11. Math

    For what values of n will the sum n+3 be less than 50

    asked by Keyani on September 21, 2015
  12. Mathematics

    Divide 40 by the sum of 3 and 5

    asked by Kayode on July 25, 2016
  13. math

    what is the sum of 3a + b + a + b? 1)3a+2b 2)4a+2b 3)a3+b2 4)4a + b 5)6ab

    asked by Anonymous on May 10, 2010
  14. algebra......

    Given f(x)=(x−1)(x−2)+(x−2)(x−5)+(x−3)(x−8), what are the sum of the roots of f(x)?

    asked by i need help from anyone! on March 28, 2013
  15. Math

    is the sum of (3+3)^2 and 2^3 equal to 26?

    asked by Angie on February 27, 2009
  16. algebra

    What is the sum of all multiples of 4 between 10 and 30?

    asked by deeyannie on February 17, 2016
  17. math

    find each sum 4/8 + 1/2

    asked by Anonymous on October 23, 2014
  18. Math

    What is the best estimate for the sum of 5/12+2/5

    asked by Jonah on February 25, 2016
  19. Alg & Trig 2

    find the sum of 1/2, 2/7x, and 5/x

    asked by Tiffany on November 5, 2010
  20. AP Calculus AB

    The sum of x and y is 8. What is the maximum value of xy-x^2? Please help!

    asked by DUE TOMORROW NEED HELP! on December 13, 2010
  21. math

    prove sum(x^2)=n(n+1)(2n+1)/6 from x=1 to x=n

    asked by assma on August 9, 2015
  22. Math

    What is the sum of all values of x which |x-3|+|3-x|-1=?

    asked by Jake on December 5, 2014
  23. math

    what is the best estimate for the sum of 5/12 + 2/5

    asked by Payton on December 13, 2016
  24. math

    Sum of 9 odd no.gives 90

    asked by ajay on January 27, 2017
  25. math

    find each sum 1/2 + 2/5

    asked by Anonymous on October 22, 2014
  26. math

    find each sum 2/3+ 1/5

    asked by Anonymous on October 22, 2014
  27. MATH

    determine the sum of: 50 over Σ 8(.5)^n-2 n=1

    asked by ashley on January 20, 2011
  28. math

    What is the sum of all integers x,such -36

    asked by tisha on July 21, 2016
  29. Math

    A goes from (0, 2) to (4, 2) B from (1, −2) to (2, 1) C from (−1, 0) to (0, 0) D from (−3, −5) to (2, −2) E from (−3, −2) to (−4, −5) F from (−1, 3) to (−3, 0) (a) A + B? (b) E − F? (c) −(B + C)? (d) Which two vectors sum to zero?

    asked by Lisa on October 23, 2017
  30. Infinity series i need help also

    To what value does the sum of 20+12+36/5+.............tends to infinity??

    asked by Collins on October 14, 2015
  31. math

    The sum of 8 and y is less than or equal to −22 .

    asked by isaac on April 28, 2017
  32. Math

    When might I need to estimate a sum?

    asked by Caleb on September 24, 2016
  33. math

    4 times the sum of a and b

    asked by troy on March 10, 2010
  34. math

    is each sum greater than or less than 4? 1.7 +0.6 +2.0 = 1.3 +0.86+1.6=

    asked by cindy on March 29, 2011
  35. 1st grade

    how many different ways can you get to the sum of 4

    asked by Anonymous on December 6, 2010
  36. math

    find each sum 1/7+ 3/21

    asked by Anonymous on October 22, 2014
  37. Math

    Find the sum: 7/12 + 7/10 =

    asked by Jess on May 16, 2011
  38. math

    how can find sum (x) from x=1 to x=n

    asked by assma on February 22, 2015
  39. Math

    Find the sum 1/4 + 1.5 + 2 3/4 + 2.4 + 1 1/2

    asked by Cindy on December 3, 2010
  40. John Jay

    what is sum or defference of 3/8 + 3/5

    asked by Andrew on October 26, 2012
  41. math

    find each sum 1/4 + 2/3

    asked by Anonymous on October 22, 2014
  42. english

    what is the sum of many parts?

    asked by Aj on October 9, 2008
  43. algebra

    what is the snswer to this sum a x 4 = d

    asked by Rosiebee on June 20, 2009
  44. math

    what is the sum from 1 to infinity of ( 3n^3 - 4n^2 + 5)/(6n^5-2n+7)

    asked by hannah on July 14, 2014
  45. Math

    What is the sum of 14 and the opposite of 12? A) -26 B) -2 C) 2 D) 26 14+-12=2? Am I right?

    asked by Natalie on March 27, 2018
  46. math

    translate 6 more than the sum of x and y

    asked by Anonymous on August 16, 2011
  47. Math

    Estimate the sum of 3 1/5 + 2 1/2 A.6 B.5 C.7 D.4

    asked by Marcia on January 16, 2010
  48. math

    Calculate the sum of 1/4 and 1/3.

    asked by monet on February 12, 2013
  49. math

    6/12+ 1/3 find each sum

    asked by Anonymous on October 23, 2014
  50. Algebra 1

    Hey could you help me? What is the sum? 7/4 + ( - 1/5 ) A:31/20 B:39/20 C:6/9 D:-7/20 Is it C?

    asked by Misty on September 15, 2017
  51. math

    3/4 + 1/9 find each sum

    asked by steve on October 23, 2014
  52. Alg & Trig 2

    find the sum of 1/2, 2/7x, and 5/x

    asked by Tiffany on November 5, 2010
  53. math

    Calculate the sum of 1/4 and 1/3.

    asked by Anonymous on February 13, 2013
  54. math

    what is the sum of 2/xand x/2?

    asked by Anonymous on January 11, 2009
  55. Math

    What is the sum for 3/10 and 5/100

    asked by Ilene on May 17, 2017
  56. Math

    Let f(x) = x^3 + 3x ^2 + 4x - 7 and g(x) = -7x^4 + 5x^3 +x^2 - 7. What is the coefficient of x^3 in the sum f(x) + g(x)? Thanks.

    asked by Jane on April 26, 2016
  57. Math

    What must be added to 5 and 1/3 to get a sum of 9?

    asked by saiyda on December 2, 2009
  58. math

    find each sum 1/12 + 4/6

    asked by Anonymous on October 22, 2014
  59. math

    find each sum 2/9 + 1/3

    asked by Anonymous on October 22, 2014
  60. Math

    Find the sum. 3 3/15 + 4 2/5 = ?

    asked by Bell on December 5, 2012
  61. Calculus

    What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ? ..

    asked by Paul on July 31, 2017
  62. 3rd Grade Math

    What is the sum of 4/10 and 55/100

    asked by Gillian on April 3, 2013
  63. Federic Chopin School

    For what values of n will the sum n+3 be less than 50?

    asked by Anonymous on September 12, 2017
  64. Math

    Find twice the sum of 18 and 56

    asked by Gerald on September 13, 2017
  65. Calculus

    What how do you compute the sum of 1/2 + 1/4 + 1/8 + 1/16 + 1/32 +++ 1/2N ?

    asked by Paul on July 31, 2017
  66. algebra

    $10 is 1/3 of 1/2 of a sum of money.what is the sum of money

    asked by rakhshanda on February 5, 2015
  67. math

    What is the sum of 667 and 23?

    asked by kayla on September 15, 2012
  68. Math

    Find the sum. 5 9/13 + 5 9/13 = ?

    asked by Bell on December 5, 2012
  69. math

    is the sum of 9/12 and 1/6 grater than or less than 1?

    asked by arjel on February 7, 2011
  70. Algebra

    Given f(x) = (x-1)(x-2) + (x-2)(x-5) + (x - 3)(x-8), what are the sum of the roots of f(x)?

    asked by Sarah on March 27, 2013
  71. math

    prove sum(x)=n(n+1)/2 from x=1 to x=n

    asked by assma on February 22, 2015
  72. calculus

    Evaluate the following sum: 10 E (–1)^n–1(1n^2–9n–3) n=4

    asked by bill nye on March 10, 2009
  73. math

    How do two fractions have a sum of exactly 1

    asked by Matt on January 29, 2014
  74. Math

    One-third the sum of x, y, and z. How do I form this?

    asked by Ashleigh Cunningham on October 24, 2013
  75. Algebra

    Find the following sum: 9 + 10 + 11 + ... + 87

    asked by Shelby on January 29, 2015
  76. Math

    The ratio of the number of cats to the number of dogs in an animal shelter was 2:3. After 120 cats were adopted, the ratio of the number of cats to the number of dogs became 3:7. Find the total number of cats and dogs in the animal shelter in the end?

    asked by Dalisay on November 22, 2016
  77. Chemistry

    How many neutrons in carbon-12 and how did you get yuor answer The atomic number is the number of protons. Look for element number 6 on the periodic table and see carbon. For carbon, there are 6 protons. # protons + # neutrons = mass number 6 + # neutrons

    asked by Schooler on October 15, 2006
  78. MATH

    1. An expression that describes the price of each table, based on the number of reductions, is 95 –2x, where x represents the number of $2 reductions in price. Write a similar expression to describe the number of tables the carpenter can expect to sell,

    asked by pewdiepie on January 1, 2019
  79. algebra

    find five numbers with a mean of 16, a median of 15 a mode of 21 and a range of 11. hi Anna i hope this helps median is the middle number . mean is all the numbers added up then divided by the amount of numbers. mode is the number that occurs most often.

    asked by Anna on August 18, 2006
  80. Statistics

    1. Use the following to answer questions: The table below presents the probability distribution for X = the number of email messages you will receive in the next 10 minutes. (9 pts) X 0 1 2 3 P(X) .35 .35 .25 .05 a. What is the probability that no emails

    asked by Denise on March 3, 2010
  81. ALGEBRA 2

    For a certain type of hay fever, Medicine H has a 30% probability of working. In which distributions does the variable X have a binomial distribution? Select each correct answer. When the medicine is tried with six patients, X is the number of patients for

    asked by I NEED HELP NO ONE IS HELPING FFS on October 13, 2016
  82. Algebra 2

    For a certain type of hay fever, Medicine H has a 30% probability of working. In which distributions does the variable X have a binomial distribution? Select each correct answer. When the medicine is tried with six patients, X is the number of patients for

    asked by unknown on October 13, 2016
  83. Math

    Eduardo has a red 6-sided number cube and a blue 6-sided number cube. The faces of the cubes are numbered 1 through 6. Eduardo rolls both cubes at the same time. The random variable X is the number on the red cube minus the number on the blue cube. What is

    asked by David on August 23, 2016
  84. math

    The ratio of guppies to angelfish in a shop was 2:3. The number of angelfish was 2/3 the number of goldfish. The shopkeeper decided to replace 1/4 of the guppies with some angelfish. The number of angelfish she added was equal to the number of guppies she

    asked by lillyyy on July 30, 2018
  85. math

    n added to a number equals 14. A number added to 14 equals 114. What does the variable y represent? And what number plus 14 equals 114? I keep coming up with n = 0 and x = 100 I think we are all trying to understand what your problem really says. Where

    asked by geo on April 12, 2007
  86. math

    You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3

    asked by thomas on June 23, 2009
  87. math

    You can use the prime factorization of a number, written as the product of powers of prime numbers, to find the number of factors the number has. First, express the number as a product of powers of prime numbers; for example, 36=2 to power 2 3 to power 3

    asked by thomas on June 23, 2009
  88. programming

    I have a general question. i was given a task to write a c code which gets an integer number as an input and prints the number of digits the number has. I have written a function that does it, but the problem is whenever the integer number is n>=100, the

    asked by oded rupin on January 18, 2016
  89. math

    There are 10 children (aged 1 to 10 years) who have equal amounts of money. In the first transaction the eldest child gives one rupee to every child younger to him. In the second transaction, the second eldest child gives one rupee to every child younger

    asked by jenny on November 17, 2014
  90. college statistics

    In Chapter 5, Exercise 9, we studied the variability of crime rates and police expenditures in the eastern and Midwestern United States. We’ve now been asked to investigate the hypothesis that the number of crimes is related to police expenditures per

    asked by jason on October 7, 2010
  91. programming

    write a program of a main module and three other modules. The owners of the Super Supermarket would like to have a program that computes the monthly gross pay of their employees as well as the employee’s net pay. The input for this program is an employee

    asked by aurelia on July 21, 2014
  92. maths

    Please help me on these problem solving sums. Also show the rough work and answer. First question: If 15% of the children walk to school, 7% cycle to school and 30% come by bus, what percentage come by car ? 2. How much for forty steel nails at €2.50 per

    asked by liam on November 10, 2015
  93. biology

    Need Help with these questions If one strand of DNA, had bases ordered ATCCGTC, what would be the bases of its other strand? Compare and contrast mitosis and meiosis as to: number of divisions, number of cells produced, number of chromosomes in parent

    asked by kate on January 23, 2010
  94. Chemistry

    How many moles of oxygen, O2, are in a sample containing 1.43 x 10^24 molecules of O2? A) 0.421 mol B) 2.37mol C) 4.74mol D) 8.61 x 10^47mol E) 1.16 x 10^-48mol So I did the number divided the number of molecules of O2(1.43 x 10^24) by Avogadro's

    asked by Anonymous on October 6, 2018
  95. chemistry

    Calculate the following quantities. (See the periodic table.) (a) mass, in grams, of 2.54 10-2 mol of CdS g (b) number of moles of NH4Cl in 90.0 g of this substance mol (c) number of molecules in 5.081 10-2 mol C6H6 molecules (d) number of O atoms in 4.72

    asked by Anonymous on August 2, 2012
  96. algebra

    A recent study shows that the number of Australian homes with a computer doubles every 8 months. Assuming that the number is increasing continuously, at approximately what monthly rate must the number of Australian computer owners be increasing for this to

    asked by Shirley on January 25, 2012
  97. math

    Muthu, Ali and Bill shared a sum of money. 30% of Muthu's share was equal to 80% of Ali's share. Bill's share was 25% of Muthu's share. Ali had $185 more than Bill. (a) Find the total sum of money. (b) If Muthu gave Bill 55% of his share, what percent of

    asked by Anonymous on December 31, 2013
  98. biology

    need help If one strand of DNA, had bases ordered ATCCGTC, what would be the bases of its other strand? Compare and contrast mitosis and meiosis as to: number of divisions, number of cells produced, number of chromosomes in parent cells and in gametes.

    asked by kate on January 23, 2010
  99. MS. SUE HELP- Chemistry

    Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen

    asked by Mary on October 7, 2016
  100. Chemistry

    Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen

    asked by Mary on October 7, 2016