1. Mathematics

    How can the number 39 be divided into two parts in order that the sum of 2/3 of one part and 3/4 of the other part is 28? Explain your workings
  2. math

    Prove that a number 10^(3n+1) , where n is a positive integer, cannot be represented as the sum of two cubes of positive integers. thanx
  3. Math

    The following series does not go below zero: 2016+2005+1994+...+L (a) What is the smallest possible value of the last number L ? (b) Find the sum of the series.
  4. Maths

    Prove that a number 10^(3n+1) , where n is a positive integer, cannot be represented as the sum of two cubes of positive integers. thanx
  5. Algebra 2

    a.) the number of terms b.) the first term c.) the last term d.) evaluate the sum 5 E (3+n) n=1 8 E 2n/3 n=1 I don't know what the symbol is for the equation but it looks like an "E"
  6. math

    The sum of two numbers is 105. One number is 6 times the other. Find the numbers the smaller value and the larger value.
  7. Math (Probability)

    Mina tosses two number cubes labeled 1 to 6. What is the probability that the sum is equal to 5? A. 1/36 B. 1/9 C.1/6 D.5/36
  8. Maths G.P.

    Find the sum of the nth terms of a G.P 5+15+45+...........What is the smallest number of the terms which will give a total of more than 10^8.
  9. math

    One number is 5 times another. Write an expression for the sum of their reciprocals. Then simplify the expression. (Use x for the variable.)
  10. Math

    The sum of three numbers in base two is 11101. If the first two numbers are 1011 and 1101 find the third number?
  11. math

    x is a positive number such that x2+9x−22=0. What is the sum of all possible values of y which satisfy the equation x=y2−13y+24?
  12. math

    What is the formula and the answer of; Two numbers are in the ratio of 4:7 if the difference between the two number is 48 find the sum of two numbers.
  13. GENERAL MATHEMATICS

    Write the working equation : 1.) The secretary of the council can draft a communication letter in 15 mins while the assistant secretary can finish the same in 32 minutes. 2.) A number more than 32 divided by 15 more than twice a number is equal to 7/6. 3.)
  14. math

    The su吗the sum of the 1st twenty-one of linear sequence is 28, and sum of the first twenty -eight terms is 21.find (a) the term of the sequence that is equal to 0. (b) the sum of the terms preceding the term 0
  15. computer science

    Writing a c++ program that stores the following values in five different variables:28,32,37,24,and 33.We have been ask to get the average of the series of values given above. Here I what I got /// This program calculates the sum and average of a series of
  16. algebra

    The sum of two numbers is 19.Five times the lesser number is four more than twice the great.What are the numbers?I'm trying to figure out if my answer is correct. 5(-b+19)=4+2(b) a+b+19 -b a=-b+19 5(-b+19)=4+2(b) -5b+95 =4+2b -2b -95 -2b -7b -7b =-95 -7
  17. Math

    make a conjecture for the following show work the sum of an even and odd number. - the product of two odd numbers.
  18. math

    Eben rolls two standard number cubes 36 times. Predict how many times he will roll a sum of 4.
  19. maths

    the frst term of AP is 4 and the last term is 79.given that the sum of the AP is 996, find the number of terms and the commmon difference.
  20. Mathematics

    Given the set of integers {1,2,3,…,801}, what is the maximum number of sets we could distribute these numbers into such that the sum of each set is exactly the same?
  21. Math

    Kim rolls two number cubes 60 times. How many times can she expect the sum of the numbers to be greater than 10
  22. Maths

    The sum of interior angles of an irregular polygon is 5040 .find the number of sides of the polygon
  23. maths

    One number is greater than another by 4, their sum is 32. What are the two numbers? Write a function which could solve this for any two numbers (x and y) with any difference between them.​
  24. math

    A regular polygon has the sum of the interior angles as 3240degrees . find the number of sides the polygon has.
  25. Algebra (Integer Problem)

    The sum of three positive numbers is 33. The second number is 3 greater than the first and the third is 4 times the first. Find the three numbers.
  26. mathURGENT!!!!!!

    determine the smallest prime number that divides the following sum: 3^12+5^13+7^14+11^15? please answer and explain step by step how u got it!!!!
  27. excellent success

    the sum of two numbers is 17, the difference between the larger number and three times the smaller is 4, find the numbers!
  28. Algebra

    The sum of two numbers is 74. If the larger number is subtracted from three times the smaller, the result is 42. Find the numbers.
  29. math

    Bella rolls 2 number cubes 60 times. How many times can she expect the sum of the numbers to be greater than 10? THANK YOU!
  30. Math

    Problem solving with derivatives. Question: The sum of 2 numbers is 12. If one number is x, the value of x for which the product of the two numbers is a maximum is?
  31. Maths

    Given the set of integers {1,2,3,…,801}, what is the maximum number of sets we could distribute these numbers into such that the sum of each set is exactly the same.
  32. math

    the product of my digits is an even number the sum of my digits is < 100
  33. math

    the sum of 3 numbers is 49. the second number is twice the 1st, and the third is 1 less than the second. find the numbers
  34. Word problem

    One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?
  35. math

    i am less than 200 the sum of my digits is 18 i have 3 digits i am an even number what am i. HELP ME PLEASE THANK YOU ABBIGAIL
  36. Math

    I am a product.One of my factors is 7.The sum of my factors equals 11.What number am I?
  37. Algebra 2

    the sum of two numbers is 74. one number is 11 more than half the other. find both numbers
  38. Math

    The sum of 2 numbers is 31.⅔ of one of the numbers is equal to ⅝ of the other. Find the number
  39. college percentages

    One number exceeds another by 24. The sum of the numbers are 58. What are the numbers? please help!
  40. algebra

    There are three real numbers x that are not in the domain of f(x)=1/ 1+ (1+1/x). What is the sum of those three numbers. I think one number is 0. Thank you!
  41. pre-algebra

    The sum of two numbers is 31. The first number is 5 less than the second. Find the numbers. what?
  42. College Algebra

    The sum of two numbers is 10. One number is five less than twice the other. Find the two numbers.
  43. MATH

    In the top row of an 8*8 chessboard, Tom writes the values 1, 2, 4, 8, 16, 32, 64, 128. In the leftmost column, Tom writes the values 1, 3, 9, 27, 81, 243, 729, 2187. In every other square that doesn't have a number yet, Tom writes the product of the
  44. math

    the number of my hunderds plus the number of my thousandsin 3. the number of my tens is 7 times the number of my hundreds. the number of my ones is 3 times the number of my thousands. allmy digits are differnt. what number am i ?
  45. math

    The sum of all five terms of an arithmetic sequence is 55. Find the sum of the first three terms of the sequence if the sum of the last three is 48.
  46. Math

    Each exterior angle of a regular polygon is 15 degrees. How many sides does the polygon have? and What is the sum of the interior angles? Since this is not my area of expertise, I searched Google under the key words "polygon angles" to get these possible
  47. algebra

    Select the set of equations that represents the following situation: The sum of two numbers is 36, and their difference is nine more than the smaller number. What are the two numbers?
  48. college algebra

    The sum of two positive numbers is 34. When the smaller number is subtracted from twice the larger, the result is 26. Find the two numbers,
  49. Algebra

    Select the set of equtions that represents the following equation.The sum of two numbers is 38, and their difference is 26 more than the smaller number what are the two numbers? a.)x+y=38;y-x=x+26 b.)2x=38;61=x+26 2y=38;61=x-26 x+y=38;x-y=26-x
  50. Math

    The product of three consecutive odd integers reduced by 23 is 99 less than the cube of the sum of the smallest number and 2. Compute the mean of the three integers.
  51. math

    Give an example that shows how to use the Distributive Property to multiply a number by a sum. All of the numbers you use should be mixed numbers or fractions.
  52. Algebra

    I need some help with algebra I'm not sure how to get to the answer. Find the number of terms in each sequence. 1. a1=4 an=42 d=2 2. a1--0.3 an=-36 d=2.1 3. 1/12, 1/8, 1/6, 5/24, 1/4,......9/8 Evaluate each sum. 1. There is an e like symbol that has a 15
  53. Math

    Make a combination that's worth one dollar where you have one of sum kind of coin, doulbe of another, double that of another, and some number of the last coin
  54. ALGEBRA

    List the conditions when the sum of a positive number and several negative numbers will be positive. Include an example that represents your answer.
  55. Math (Algebra)

    If a is a real number and a cubic equation f(x) = x^3 − 8x^2 + (a+12)x − 2a has a repeated root, what is the sum of all the possible values of a?
  56. Algebra please

    I have two left I need help with and don't understand. Find the partial sum S6 1. An=3n+2 2. Find the number of terms n in an arithmetic sequence if a1=20, d=5, and An=75.
  57. Math

    The sum of two numbers is s. If one of the numbers is n, the second number can be expressed as? I will be happy to critique your thinking or work. what are polygons with the same size
  58. precalculus

    Find the number of negative integers greater than -500 that are divisible by 33. Also find their sum. How do I set up this problem?
  59. Algebra

    Select the set of equation that represents the following situation: The sum of two numbers is 52, and their differewnce is two less than the smaller number. What are the two numbers? 2x= 52;52=x+2 x+y=52;y-x=x-2 x+y=52;x-y=2-x 2y=52;52=x-2
  60. Algebra

    If a is a real number and a cubic equation f(x)=x^3−12x^2+(a+20)x−2a has a repeated root, what is the sum of all the possible values of a ?
  61. math

    help soni arrange numbers from 1 to 9 in such a sequence that the sum of the numbers in each diagnol should be15. make sure that no number is repeated more then one
  62. Alg2

    If the sum of a geometric series is 781, the number of terms is 5, the common ratio is 5 and the last term is 625, what is the first term a1?
  63. goemetry

    can the following formula to find the sum of the interior angles of a polygon be used on a concave polygon? 180(n-2) where n= the number of sides
  64. Chemistry

    Which of the following must be the same before and after a chemical reaction? Answer: The sum of the masses of all substances involved and the number of atoms of each type involved. WHY?
  65. Number theroy

    What is the 50th smallest positive integer that can be written as the sum of distinct non-negative integer powers of 3?
  66. Math 8th grade

    I NEED THESE IN ALGEBRAIC EXPRESSION!! The larger of two sums is 12 more than the smaller. Their sum is 84.Find the numbers. The sum of two numbers is 45. The first is 9 less than the second.Find the numbers. The second of two numbers is 5 more than twice
  67. algebra and trigonometry

    At a college function, a total of 180 tickets were sold. The tickets were priced at $5, $10, and $15, and the money collected that day was $1,900. The sum of the numbers of $5 and $15 tickets sold was twice the number of $10 tickets sold. Find the number
  68. Math(arithmetic & Geometric Series)

    1)The sum of 6 terms of an arithmetic series is 45, the sum of 12 terms is -8. Find the first term and the common difference? 2)If in a geometric sequence the sum of the second and the third is 20 and the sum of the fourth and fifth is 320, find the common
  69. math

    Tickets for a certain show cost ​$15​, $24​, ​or, for VIP​ seats, ​$41. If ninenine times as many ​$15 tickets were sold as VIP​ tickets, and the number of ​$15 tickets sold was 55 more than the sum of the number of ​$24 tickets and
  70. math

    if a sum of money doubles in 8 yrs, in how many years will it triple itself?Is the answer 16? If it is please tell me how to show the workings. I understood the concept but cannot express it.This is a simple interest sum.
  71. math

    please explain #urgent the sum to infinity of a convergent series is 243. the sum of the first five terms is 242. how do you determine the values of the common ratio and the first term
  72. Further mathematics

    An exponential sequence of positive terms and a linear sequence have the same first term.the sum of their first terms is 3 the sum of their second terms is 3/2,and the sum of their third terms is 6.find their fifth terms.
  73. math

    at a college function a total of 180 tickets were sold. the tickets were priced at $5,10,15 and the money collected that day was $1,900. the sum of the numbers of $5,and $15 tickets sold was twice the number of $10 tickets sold. find the number of each
  74. calculus

    If the nth partial sum of an is sn=(3n-2)/(n+1) what is an when x>1? and what is the sum of an?
  75. Math

    How do you rename 2/5 so you can add it to 11/25? What is the sum? What is the sum of 5/30 + 4/6
  76. math

    find each sum 65+18 How can you regroup ones in this sum?
  77. math

    If #(w,x,y,z)means you multiply the sum of w and x by the sum of y and z, and #(2,3,4,z)=40, then z= a. 5/3 b. 2 c. 4 d. 5 e. 8
  78. math

    If # (w,x,y,z) means you multiply the sum of w and x by the sum of y and z, and # (2,3,4,z)=40,then z = a. 5/3 b. 2 c. 4 d. 5 e. 8
  79. MATHS

    in A.P the sum of the last five terms is 85 and the 4th is 9.what is the sum of the A.P?
  80. Find the sum of thuis question

    Can someone find the sum for this equation please. (X^2)/(X^2-16)=(5X+4)/(X^2-16) I don't think it is finding the sum, but I can simplify the equation. (X^2)/(X^2-16)=(5X+4)/(X^2-16) First, multiply both sides by X^-16. X^2 = 5X+4 Subtract 5X+4 from both
  81. sagar public

    . If the sum of m terms of an AP is the same as the sum of its n terms, show that the sum of its (m+n) terms is zero.
  82. maths

    The sum of first 20 terms of an AP is equal to the sum of first 30 terms .Show that the sum of 50 terms of an AP is 0.
  83. math

    Define a variable and write an inequality for each of the following. A. When 3 times a number is decreased by 8, the result is at least 2 times the number. B. Ignatz, the Airedale, and Angus, the Scottie, collect bones. Ignatz has 5 more than Angus. They
  84. PRE-CALC

    A number is selected at random from the set {2, 3, 4, … ,10}. Which event, by definition, covers the entire sample space of this experiment? A) The number is greater than 2. B) The number is not divisible by 5. C) The number is even or less than 12. D)
  85. Math

    1.What is the sum of the digits in the expanded form of the number 384cuberoot x5raised to the 20?What is 384cube root x5raised to the 20 in scientific notation?
  86. Math (Quadratics)(Discriminants)

    If a is a real number and a cubic equation f(x)=x^3−8x^2+(a+12)x−2a has a repeated root, what is the sum of all the possible values of a?
  87. math

    In my book, it says to use a number line to find the sum of the equations. Should I draw a numberline on my paper, or just write down the answer on the paper?
  88. Math

    The sum of two numbers is 45. The difference between the numbers is 37. What is the value of the 2 number?
  89. Algebra

    the sum of two numbers is 20. one number is 1 less than twice the other. find the numbers
  90. help

    The sum of two numbers is 20. One number is 3 times the other. Find the numbers.
  91. math

    five times the sum of a number and four into math expression
  92. math

    The sum of 2 numbers is 26. Four times the first number plus twice the second is 70. What are the numbers?
  93. math

    The sum of two numbers is 94.6. If one number is 19 times the other, what are the two numbers? 
  94. EDTECH

    In the following equation, which number is the sum? 30+20+50=100 A)30 B)20 C)50 D)100*** Please help me !!!
  95. math

    the sum of two numbers is 25. the second number is 5 more than the other one. find the numbers.
  96. Math

    The sum of two numbers is 63. One number is 7 more than the other. Find the numbers.
  97. collegemathwordproblem

    One number exceeds another by 24. The sum of the numbers are 58. What are the numbers?
  98. math

    One number is 6 more than another. The sum of the numbers is 30. Find the numbers.
  99. Geometric

    1) The sum of last three terms of GP having n terms is 1024 time the sume of first 3 terms of GP. If 3rd term is 5. Find the last term. 2) The sum of the first eight terms of a GP is five times the sum of the first four terms. Find the common ratio.
  100. science( chem)

    When 100.0ml of a weak acid was titrated with 0.09381M NaOH, 27.63ml were required to reach the equivalence point. The pH at the equivalence point was 10.99. What was the pH when only 19.47ml of NaOH had been added ? I'll just post my work and I need