1. College Alebra

    Solve the following using system of equations. The sum of three numbers is 26. The middle number numerically is one more than three times the smallest number. The largest number is two times less than five times the smallest number. Find the three numbers.
  2. Math

    WRITE THE EQUATIONS: 1) Twice a umber added to four 4 is 28 MY ANSWER: 4 + 2n = 28 2) a number subtracted from 9 is three times that number MY ANSWER: 90 - n = 3n 3) The sum of two numbers is 180. One number is five times the other. (NEED HELP W/ THIS ONE)
  3. math

    In 1 through 6, find each sum. Simplify, if possible. Estimate for reasonableness. 1. 7 __2 3 + 8 __5 6 2. 4 __3 4 + 2 __2 5 3. 11 ___9 10 + 3 ___1 20 4. 7 __6 7 + 5 __2 7 5. 5 __8 9 + 3 __1 2 6. 21 ___ 11 12 + 17 __2 3 7. Number Sense Write two mixed numbers that have a sum ...
  4. maths

    Which term of the progression 19+ 18 1/5 + 17 2/5 + …is the first negative term? What is the smallest number of terms which must be taken for their sum to be negative ? Calculate this sum exactly.
  5. math gre question

    in an infinite series of circles the radius of the second circle is one half the radius of the first circle and the radius of the third circle is one half the radius of the second circle. if the first circle has a radius of one inch which of the following statements best ...
  6. probability

    A coin is biased such that a head is thrice as likely to occur as a tail. Find the probability distribution of heads and also find the mean and variance of the distribution when it is tossed 4 times. See http://www.stat.yale.edu/Courses/1997-98/101/binom.htm Let p be the ...
  7. Math

    Which set of factors of the number 420 has the least possible sum? Which set of factors of the. Number 420 has the greatest possible sum? Be sure that the two sets of factors both have a product of 420
  8. college Algebra

    This is "college" math? Anyway... let the smaller number be x, and the larger number be x+8 then x + x+8 < 12 this is easy to solve, let me know what you got. the sum of two numbers is less than 12. The second number is 8 more than the first.what are the possible values of ...
  9. Math

    i did the other one but can someone help me with this one: Four = fifths of the sum of a number and three is equal to six and a half. What is the number? also ms. sue deleting my question was not very nice because it took me forever to type it and if you didn't know it then ...
  10. Maths

    The sum of two whole number is 23.The different between them is 5.What is the smaller number?
  11. Maths

    The sum of two whole number is 23.The different between them is 5.What is the smaller number?
  12. Math

    Is sum of two whole number a natural number?
  13. math

    i am an even number between 10 and 30 .you can add 4 to me and get the sum of 10 and 10 what number am i
  14. math

    whats the sum of a number and -5 and a number
  15. Algebra

    Four times the sum of 9 and some number is 60. What is the number?
  16. Math

    The sum of half a number and 5 is 9. What is the number?
  17. math

    the product of two whole number is 65 what is the sum of the two number
  18. math

    The sum of 3 times some number and 18 is 33. What is the number?
  19. Math

    Twice the sum of a number and 4 is equal to 22. What is the number?
  20. Algebra

    The sum of five and three times a number is 89. What is the number?
  21. Algebra

    The sum of a number and one seventh of it is 88.What is the number?
  22. value

    The sum of a non-negative number & its square is less than 12.What could the number be?
  23. Algebra

    The sum of a number and one seventh of it is 88.What is the number?
  24. math

    The sum of three numbers is 92. The first number is 1/3 of the second, and the second is 2/5 of the third. What is the second number?
  25. algebra one

    twice the difference of a number and four is less than the sum of the number and five
  26. Math

    Twice the sum of five and a number is eight less than four times the number
  27. Prealgebra

    One-half of the sum of a number and 4 is less than 14. What is the number?
  28. math

    A number is called a perfect number if it equals the sum of all its factors except itself. for instance , 6 is a perfect number because its factors are 1,2,3 and 6 and 1 + 2 + 3 = 6 .What is the next greater perfect number ?
  29. math

    a number is called a perfect number if it equals the sum of all its factors except itself. for instance , 6 is a perfect number because its factors are 1,2,3 and 6 and 1 + 2 + 3 = 6 .What is the next greater perfect number >
  30. Math

    The sum of two numbers is 9.twice their product gives 40.find the numbers. One number exceeds another by 4.the sum of their square is 208. What are the numbers. The area of a rectangular field is 108square .the perimeter is 42. Find the length.
  31. Computer Sciene-java

    Write a loop that will continuously prompt the user for integers to sum, -1 to exit. Sum these values and display the sum to the console. Here is what I have so far, but I feel like I am missing something: public class Sum1 { public static void main (String [] args) { Scanner ...
  32. mathematics

    A number n where if the sum of dights of the number of the number is divisible by n, then the number itself is divisible by n?
  33. Algebra 2

    The sum of three numbers is 36.the first number is two times the second number and the second number is four less than the third number. What are the numbers?
  34. Math

    The sum of two numbers is =21.five times the first number is added to two times the second number is =66 what the number
  35. Algebra

    Five times the reciprocal of a number equals the sum of 3/2 the reciprocal of the number and 7/6. What is the number
  36. math

    four times the sum of a number and three equal two less than five times the number. find the number
  37. Math (Trigenometry)

    Find two positve real numbers whose product is a maximum and whose sum of the first number and four times the second number is 120. This is as far as I've gotten in solving it. *first number is x. *second number is y. *xy=maximum, which is unknown. *x+4y=120. Solve for x, ...
  38. Math

    What numbers can be expressed as an alternating-sum of an increasing sequence of powers of 2 ? To form such a sum, choose a subset of the sequence 1, 2, 4, 8, 16, 32, 64, . . . (these are the powers of 2). List the numbers in that subset in increasing order (no repetitions ...
  39. ALGEBRA 1!!!

    Problem A: 6a + (8b + 2a) e1. = 6a + (2a + 8b) Asymmetric Bdistributive Cmultiplicative identity Dcommutative Ereflexive Fsubstitution f2. = (6a + 2a) +8b Adistributive Bassociative Csubstitution Dmultiplicative property of zero Emultiplicative identity Fadditive identity b3...
  40. algebra

    Problem A: 6a + (8b + 2a) e1. = 6a + (2a + 8b) Asymmetric Bdistributive Cmultiplicative identity Dcommutative Ereflexive Fsubstitution f2. = (6a + 2a) +8b Adistributive Bassociative Csubstitution Dmultiplicative property of zero Emultiplicative identity Fadditive identity b3...
  41. math

    tha sum of two number is 25 times tha difference between these two numbers.if 75%of smaller number is 18 what is tha other number.
  42. mathematics

    in a positive number of two digits,the sum of the digits is 15.if the digits are interchanged the number is increased by 9.find the number.
  43. math

    Three numbers in an arithmetic sequence sum to six. If you add 1 to the first number, 2 to the second number, and 5 to the third number, the result will be a geometric sequence. What are the original 3 numbers?
  44. Math

    Can you help me write these out in an algebraic expression? 1. Seven less than twice a number equals 19. 2.Eight decreased by 3 times a number equals 2. 3. The sum of two times a number and 5 is 11. Is this right? x/8 + -1/2 = 6 My answer: x=44
  45. maths

    I add 12 to a number and then double their sum.the result is one and the half times what I get when I double the original number and add 12.find the number
  46. survey for school

    This is a survey WHEN YOU ANSWER PLEASE GIVE DETAILS FOR EACH ANSWER. AND CAN YOU ANSWER THIS WAY: Letter followed by words next to the letter. Thanks (1) If around nine people (for example) over the years said negative things (or what you perceive as negative) about your ...
  47. math, probability

    There are six ways to write 5 as an ordered sum of three positive integers: 3+1+1, 1+3+1, 1+1+3, 2+2+1, 2+1+2, 1+2+2. A) What is the number of ways to write "n" as an ordered sum of "r" integers? B) What is the number of ways to write "n" as an ordered sum of positive integers...
  48. math

    the sum of 3 numbers is 301. the second number is 3 less than 12 times the first number. the third number is 4 more than 7 times the first number. find the 3 numbers
  49. Math

    Does the following infinite geometric series diverge or converge? Explain. 1/7+1/28+1/112+1/448 A) It converges; it has a sum.*** B) It diverges; it does not have a sum. C) It diverges; it has a sum. D) It converges; it does not have a sum. Since (1/7)/(6/7)=1/6 and -1>1/6&...
  50. math

    I would need help with example: The sum of three consecutive terms of geometric progression is 9. The first number with no change, the second number plus 12 and the third number minus 3, are the 3 consequtive terms of arithmetic progression. What are the values of original 3 ...
  51. maths

    1) The first term of arithmetic progression is -20 and the sum of it's term is 250. find it's last term if the number of it's terms is 10 2) Find the fifth term from the arithmetic progression -12, -9, -6 hence find the sum of it's first fifty terms. 3) The sum of the first ...
  52. Math mrs sue

    Can you check these? 18% of 90 is what number? i got 16.2 what number is 41% of 800? i got: 1951.22 what number 5% of 522? i got : 10440 70% of 279 is what number? i got: 195.3 what number is 90% of 13? i got : 14.44 9% of 351 is what number? i got: 32 36% of 95 is what number...
  53. math percents

    Can you check these? 18% of 90 is what number? i got 16.2 what number is 41% of 800? i got: 1951.22 what number 5% of 522? i got : 10440 70% of 279 is what number? i got: 195.3 what number is 90% of 13? i got : 14.44 9% of 351 is what number? i got: 32 36% of 95 is what number...
  54. Algebra

    Could someone please help me with those 2 problems...thanks a lot for any of your help Use an algebraic approach to solve the problem. Find three consecutive integers whose sum is 57. Suppose that Maria has 140 coins consisting of pennies, nickels, and dimes. The number of ...
  55. math

    A pair of dice is rolled. Find the probability of rolling ​a) a sum not more than 1010​, ​b) a sum not less than 77​, ​c) a sum between 33 and 77 ​(exclusive).
  56. Math

    Minimizing Sum: Find two positive numbers whose sum is 100 and the sum of whose squares is a minimum.
  57. Grade 9 Algebra Question 3 (LAST)

    PASCAL’S TRIANGLE For Exercises 5 and 6, use the following information. Blaise Pascal is known for a special triangular arrangement of numbers, calledPascal’s Triangle.. Each number insuccessive rows of the triangle is created by adding the two numbers in the row above the...
  58. math

    there are 3 numbers, a,b and c. the sum of a and b is 15.31 , the sum of b and c is 9.54,and the sum of a and c is 5.15. find the sum of a,b and c.
  59. help maths partail sum

    find the partial sum and the limiting sum of the following infinite series 1/4+1/10+4/18.... show step got no ideal at all
  60. algebra,math,help

    can someone explain to me the following:thanks... one number is 2 times another. If the sum of their reciprocals is (1)/(4). Find the two numbers. We can begin by looking at the following. Let's use the letters "a" and "c.": "One number is 2 times another." c=2a (c is 2 times ...
  61. Math

    What is tbe next row of the following table? 0 2 2 2 0 0 0 0 0 0 2 4 6 4 2 0 0 0 0 2 6 12 14 12 6 2 0 0 2 8 20 32 38 32 20 8 2 2 2 2 4 6 4 2 2 6 12 14 12 6 2 2 8 20 32 38 32 20 8 (2) Notice in this arrangement any number is the sum of the number above it plus the numbers on ...
  62. Algebra readiness

    A picture frame is 12 inches long and 9 inches wide. In inches, what is the diagonal length of the picture frame? A)12 inches B)15 inches*** C)8 inches D)6 inches Which number is a perfect cube? A)3 B)15 C)64*** D)567 When adding square root 25 and -9, which type of number is ...
  63. Math PLEASE

    It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows with ...
  64. Math PLEASE

    It's about arithmetic sequence . . (the sum) SOLUTION PLEASE THANK YOU SO MUCH 1. A runner begins training on July 1 by running a kilometer, and increases the length of the run by 0.2 km/day. Find the length ofthe run in July 18 . 2.Bowling pins are set up in four rows with ...
  65. math

    A person borrowed Rs.500 @ 3% per annum S.I. and Rs.600 @ 4.5% per annum on the agreement that the whole sum will be returned only when the total interest becomes Rs.126. The number of years, after which the borrowed sum is to be returned, is:
  66. Math

    The sum of 16terms oe an A.P is -504,while the sum of its 9terms is -126.Find the sum of its 30terms
  67. Math 8R: Homework Check - Part 4

    Part 4: Translate and solve: 25. 6 less than twice a number is ten Answer : 2n - 6 = 10 (answer: n = 8) 26. The quotient of a number and 4 plus 3 is 8 Answer: n/4 + 3 = 8 (answer: n = 29) 27. 4 less than three times a number is -28 Answer: 3n - 4 = -28 (answer: n = -8) 28. ...
  68. simple question! i sware!!

    Can you tell me how the number twenty-eight (28) is in everyday life? Or in other words where can you find it in everyday life? thank you! i don't need a website just give me an idea... thanks! Look at the calendar. help.. I got that already but thanks anyways.. Thank you for ...
  69. linear equations in two variable

    A person going at a rate of 5 km/hr in still water,takes thrice as much time in going 40km upstream as in going downstream. Find the speed of the stream.
  70. CHEK MATH PLZ!!!

    The sample space for a roll of two number cubes is shown in the table. (1,1)|(1,2)|(1,3)|(1,4)|(1,5),(1,6) (2,1)|(2,2)|(2,3)|(2,4)|(2,5)|(2,6) (3,1)|(3,2)|(3,3)|(3,4)|(3,5)|(3,6) (4,1)|(4,2)|(4,3)|(4,4)|(4,5)|(4,6) (5,1)|(5,2)|(5,3)|(5,4)|(5,5)|(5,6) (6,1)|(6,2)|(6,3)|(6,5)|(6...
  71. Math/Algebra

    In a certain game, each of 5 players received a score between 0 and 100, inclusive. If their average (arithmetic mean) score was 80, what is the greatest possible number of the 5 players who could have received a score of 50? Explain. (A)None (B)One (C)Two The average is ...
  72. fourth grade math

    one factor of the mystery number is 7 the other factor is an odd number greater than 8 and less than 15 the mystery number is greater than 75 the sum of the digits of the mystery number is 10 what is the mystery number? what is the missing factor????
  73. Algebra

    Can you PLEASE help me with this Algebra problem: In a hotel conference room, the number of chairs is 47 more than the number of people currently in the room. The total number of legs currently in this room is 938. What is the sum of the digits in the number of people ...
  74. Math

    X X2 1 1 2 4 3. 9 5 25 8. 64 10 100 It asks me to do the Sum of X Sum of Squares Sum of X squared Can you please help me on this. I don't get it
  75. Math

    The simple interest on a sum of money is 1/9 of the sum.The number of years is numerically equal to the rate percent per annum. The rate percent per annum is?
  76. Algebra

    the sum of two numbers is 18. The difference between three times the lesser number and the greater number is 10. A)define variables and formulate a system of equations from this situation B)solve your system of equations algebraically and find the greater number
  77. Algebra/Number Theory

    In a sequence of four positive numbers, the first three are in geometric progression and the last three are in arithmetic progression. The first number is 12 and the last number is 452. The sum of the two middle numbers can be written as ab where a and b are coprime positive ...
  78. Math

    greater than 30 but less 40 and if you add the digits you get a sum of 10. What is the number word? greater than 7/10 tens but less than 8/10 tens the number has 4 ones, what is the number word? I have more but will wait for these first, thanks. This is to try and help my ...
  79. math

    five times an unknown number decreased by the same unknown number is less than the opposite of the sum of the unknown number and five
  80. algebra

    Three numbers are such that the first number is 10 less than twice the second and the second number is 4 more than three times the third. Twice the second number is equal to the sum of the first and third numbers. Find the numbers
  81. math

    negative one times the sum of twice a number and 3 is equal to two times the difference of -4 times the number and 3. what is the number?
  82. Math

    The sum of the opposite of a number and the absolute value of the number is equal to the number itself.True,sometimes true,never true?
  83. Algebra

    Four numbers have a total of 92. The first number is twice the second number and the third is 4 more than the sum if the first two. The fourth number is 3 less than the difference of the first two numbers. What are the numbers?
  84. Math

    The sum of the opposite of a number and the absolute value of the number is equal to the number itself. True,sometimes true,or never true?
  85. Algebra

    Nadia has 32 coins made up of nickles, dimes, and quarters. The sum of the number of nickels and the number of quarters is three times the number of dimes. If the total value of the coins is $4.60, how many of each kind does she have? I can't figure out how to make this word ...
  86. Algebra

    Nadia has 32 coins made up of nickles, dimes, and quarters. The sum of the number of nickels and the number of quarters is three times the number of dimes. If the total value of the coins is $4.60, how many of each kind does she have? I can't figure out how to make this word ...
  87. Algebra

    Nadia has 32 coins made up of nickles, dimes, and quarters. The sum of the number of nickels and the number of quarters is three times the number of dimes. If the total value of the coins is $4.60, how many of each kind does she have? I can't figure out how to make this word ...
  88. Algebra

    Nadia has 32 coins made up of nickles, dimes, and quarters. The sum of the number of nickels and the number of quarters is three times the number of dimes. If the total value of the coins is $4.60, how many of each kind does she have? I can't figure out how to make this word ...
  89. Writing Inequalities

    I need some help with this problem. A number is less than the sum of twice its opposite and five. Find the number. Thank you for your help!!! If by "its opposite" you mean the same number with opposite sign, then if you let x be that unknown number x < -2x + 5 You can add ...
  90. Math

    Does the following infinite geometric series diverge or converge? Explain. 3 + 9 + 27 + 81 + . . . A) It diverges; it does not have a sum. B) It converges; it has a sum.*** C) It diverges; it has a sum. D) It converges; it does not have a sum.
  91. calc help

    consider the function f(x)= x^2/4 -6 Rn is the Riemann sum where the sample points are chosen to be the right-hand endpoints of each sub-interval. Calculate Rn for f(x)= x^2/4 -6 on the interval [0,4] and write your answer as a function of n without any summation signs. Rn= ? ...
  92. math

    The following is a list of 11 measurements: -78, -1, 92, -24, 59, 21, 51, -2, 65, 37, 11 . Find 11 over sum,under sum i=l than Xi over 14 Round your answer to at least two decimal places. I get a sum of 231, now this is where I am confused. Do I divide or x is it 14x321 or 14 ...
  93. math

    cn you please help me a problem states that the sum of two numbers is 27. The numbers can be represented by x and 27-x. Is it possible to determine which is the larger number and which is the smller number. explain Thank u
  94. Intermediate College Algebra

    The larger of two numbers is ten more than twice the smaller number. The sum of the numbers is forty. Find each number.
  95. math

    A dartboard has the numbers 3, 6, 9, 12, 15, 19, 21, 25, 27, and 30 on it. What is the fewest number of darts that could be thrown if two darts canot land on the same number and if the sum of those scores must be 50?
  96. Math

    The sum of two numbers is 15. Three times the second number minus four times the first number equals 4. What are the missing variables? Please show your work.
  97. MATH

    A dartboard has the numbers 3, 6, 9, 12, 15, 19, 21, 25, 27, and 30 on it. What is the fewest number of darts that could be thrown if two darts tcannot land on the same number and if the sum of the scores must be 50?
  98. Maths

    The sum of two numbers is 21 .two-thirds of one number is added to three-quarters of the other number to give 15 .find the two numbers,showing clearly your workings.
  99. Algebra

    One number is 3 times another. If the sum of their reciprocals is 4, find the two numbers. __ 15 this is supposed to be 4 over 15 Let the smaller number be x. The two numbers are then x and 3x. You have only one unknown now. 1/x + 1/(3x) = 4 4/(3x) = 4 1/(3x) = 1 3x = 1 x = 1/...
  100. Math

    the sum of two numbers is 27. one number is 3 more than the other number. write and solve a system of equations to find the two numbers. i understand the first equation but i don't know the other one.
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