1. math(adding mixed fractions)

    please help me with (addition mixed fractions)i cant get it!!! ---addition with mixed numbers--- 1.which of the following is not true for adding mixed numbers? A.the denominators of the fractions must be the same in order to add them. B.you can add mixed

    asked by matt on December 1, 2013
  2. math

    suppose a pair of dice is rolled. Consider the sums of numbers on the top of the dice. Find the probabilities: a) P(5, given that the sum are odd) b) P(odd, given that the sum rolled is 5) c) P(7, given that one of the dice rolled was odd)

    asked by ken on October 31, 2008
  3. Physics

    Three resistors having the same resistance value are wired in parallel. How does the equivalent resistance compare to the resistance value of a single resistor? The equivalent resistance is thrice the value of a single resistor. The equivalent resistance

    asked by BoBo on October 22, 2012
  4. Maths

    When Professor Sum was asked by Mr. Little how many students in his classes, he answered. “All of them study either languages, or not at all. One-half of them study languages only. One-fourth of them study French, one-seventh study physics only, and 20

    asked by Amanda on March 4, 2010
  5. 8th grade math URGENT

    1 1/4 miles in 2 min and 4 seconds, or 1 3/16 miles in 1 min and 55 sec. Which is greater? $1.60 for 5 min or $19.50 for 1 hour. Which is greater? Look for a pattern in the expressions shown below. Use the pattern to write an expression for the sum of the

    asked by help!! on September 8, 2013
  6. Math

    Use each of the numbers 7, 8, 9, 10, and 11 once and only once to fill in the circles so that the sum of the numbers in the three horizontal circles equals the sum of the numbers in the three vertical circles. OOO O 0 Of the three possible solutions, which

    asked by Kelly on October 19, 2009
  7. math

    Find the sum of the first one thousand positive integers. Explain how you arrived at your result. Now explain how to find the sum of the first n positive integers, where n is any positive integer, without adding a long list of positive integers by hand and

    asked by Anonymous on May 16, 2016
  8. Statistics

    I have a couple questions I answer for home work could some look atthem and tell me If I am doing them right I also am having problems understanding the variance and standard deviation are the site you can suggest that would help with this I need a step by

    asked by KEENE on February 6, 2009
  9. arithmetic

    If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011

    asked by Susan on November 16, 2011
  10. Accounting

    If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?

    asked by Gabe on November 16, 2011
  11. arithmetic

    If you treat the day of the month as a number (March 12th is the number 12, April 4th is the number 4), what is the average value of the numbers that represent the 6 Tuesdays that fall after September 12, 2011?

    asked by Kesha on September 12, 2011
  12. Calc

    A 100 inch piece of wire is divided into 2 pieces and each piece is bent into a square. How should this be done in order of minimize the sum of the areas of the 2 squares? a) express the sum of the areas of the squares in terms of the lengths of x and y of

    asked by katie on November 17, 2010
  13. Algebra

    A certain drug has a half-life of about 2 hours in blood stream. The drug is formula to be administered in dose of ''D'' milligram every 4 hours. But ''D'' is yet to be determined. A) Show that the number of milligrams of drug in blood stream after the nth

    asked by Inam on January 4, 2018
  14. Further mathematics

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

    asked by Tosin on November 20, 2011
  15. Algebra1

    "Tweedledum says: the sum of your weight and twice mine is 361 lbs. Tweedledee says: contrariwise, the sum of your weight and twice mine is 362 lbs if both are right how much do they weigh together?" i got this part, but the next part i can't figure out:

    asked by Melanii on February 17, 2009
  16. math

    There are 18 boys and 60 girls working on a community service project. They work in groups where each group has the same number of boys and the same number of girls. Q1: What is the first step to finding the greatest number of groups possible? A. Multiply

    asked by Kyle on October 8, 2014
  17. GEN MATH

    Solve the ff. problems. Present a complete and systematic solution. 1.) A number added to twice its reciprocal is equal to 11/3. WHat is the number? 2.) The ratio of ten more than three times a number to the square of the same number is equal to 1. What is

    asked by lab on July 31, 2016
  18. math

    If Joe throws a pair of six-sided dice and records the sum of the first throw, how many more times must Joe throw the dice to ensure that he records the same sum as the first throw?

    asked by jorge on September 5, 2012
  19. Math (fibonacci

    A sequence of numbers is called a Fibonacci-type sequence if each number (after for the first two) is the sum of the two numbers which precede it. For example, 1, 1, 2, 3, 5, 8 ... is a Fibonacci- type sequence. If 1985, x, y, 200 are four consecutive

    asked by Lexmo on August 8, 2014
  20. Math -real numbers

    Which statement is false? A) the number zero is a rational number. B)some irrational numbers are also rational numbers. C)Every irrational number is a real number. D) every integer is a rational number These questions get me every time:( I think it is D

    asked by Avery on October 20, 2015
  21. chemistry help!!! (clueless)

    how do i find the mass number of chemicals I would think that you would add up the components masses (molecular masses [from periodic table) that make up the chemical... like...HCl (H= 1.008g/mol, Cl= 35.45g/mol) added= 36.458g/mol hope this helps=)

    asked by tessa on July 11, 2007
  22. Maths

    If 12 is subtracted from three times a number the result is equal to two-thirds of the number plus 16.What is the number

    asked by Anonymous on January 31, 2016
  23. Math

    I am a number between 20 and 30. When you divide me into 6 equal groups,there is an even number in each group and 2 are left over.what number am I?

    asked by Logan on July 9, 2014
  24. math

    the difference between two whole number is 26 and one number is three times the other then the smaller number is..........my work x-y=26,3x_y=26

    asked by Anonymous on January 3, 2017
  25. math ALG 2!

    Four times a certain number is the same as the number increased by 78. Find the number i thought it was 20.plz help

    asked by ty on March 19, 2013
  26. math

    When 100 is added to a number , the result is 50 more than 3 times the number. Find the number

    asked by SABIR Hussain on December 22, 2016
  27. Math

    Twice the square of a positive number increased by three times the number is 14. Find the number.

    asked by Ed on May 13, 2015
  28. Mathematics

    When hundred is added to a number, the result is 50 more than 3times the number . Find the number

    asked by Komal Tripathi on December 22, 2016
  29. Math

    twice the square of a positive number increased by three times the number is 14. find the number

    asked by M on May 13, 2015
  30. Math

    If you stop back in number by 1 by 2 from a number of money. It'll be fun bye to you get one by 8 what is the number

    asked by Kirtiman Singh on September 13, 2016
  31. Math

    When 1 is subtracted from 5 times a number and a result is divided by 3 more than twice the number we get 4/5.find the number.

    asked by Nitin on October 24, 2016
  32. Math

    Some number added to -12 is 45. Add this number to 30. Multiply the answer by 3. What is the final number?

    asked by Sara on April 14, 2015
  33. 2nd grade

    i am a number between 20 and 30, when you put me into 6 equal groups, there is an even number in each group and 1 is left over, what number am I.

    asked by Janae on April 5, 2010
  34. Maths

    When 100 is added to a number the result is 50 more than 3 times the number . Find the number

    asked by Meenakshi on December 22, 2016
  35. math

    if the reciprocal of the opposite of a number, x, is equal to 9 times the opoostie of the number, then the number could be?

    asked by john on September 3, 2012
  36. problems involving equation

    14 Is added to ⅔ of a number. the result is 1¼ times the original number. find the number

    asked by esther on August 16, 2015
  37. math

    One number is four times another. the greater number is x. write an ecpression for the lesser number.

    asked by manny on September 25, 2012
  38. Math

    Some number multiplied by -6 is 36. Multiply this number by 8. Divide the answer by 2. What is the final number?

    asked by Anonymus on April 14, 2015
  39. math

    if one sixth of a number is added to one eighth of the same number, the result is 35. find the number?

    asked by Sandra on February 22, 2017
  40. math

    the result of multiplying a number by 3 and subtracting 5 is the same as doubling the number and adding 9 what is the number

    asked by janet on September 15, 2018
  41. Math

    When 100is added to a number the result is 50 more then 3 times the number.find the number

    asked by Abhay on December 22, 2016
  42. math

    if 13 times a number is subtracted from the square of the number the result is 30. find the number.

    asked by urugba on October 23, 2018
  43. Maths

    The product of the square of a number and the cube of the same number is equal to 32. Find the number

    asked by Thina on February 21, 2017
  44. Maths

    When 100 is added to a number,the result is 50 more than 3 times the number find the number

    asked by Deep on December 22, 2016
  45. Math

    Use the limit definition of the derivative to find f′(x) if 1. f(x) = x^2 + 3x 2. f(x) = 1/x + 1 kk for number one i got f'(x) = 2x+3 and for number two i got f'(x) = -1/(x+1)(x+1) can any one verify these, especially number 2.

    asked by catherine on September 14, 2010
  46. Math

    list all the arrays for each number. An example number is 8 Im not sure what they mean by array for each number. Can you give me an example or explain? Thanks!

    asked by Howard on February 15, 2007
  47. math

    when I add a number to another number four times as big, the result is 30. find the first number.

    asked by Ifey on February 9, 2016
  48. algebra homework help

    Let z be the unknown number. −61 times the difference between a number and 56 is equal to the number plus −28 Is this correct: -61(z-56)=z-28

    asked by jennifer on October 12, 2016
  49. math

    14 is added to 2/3 of a number.the result is 1 1/4 times the original number.find the number

    asked by mma on September 4, 2016
  50. value

    If 13 Times A Number Is Subtracted From The Square Of The Number,the Result Is 30.Find The Number.

    asked by value on October 16, 2016
  51. algebra expression (math)

    Thinks of a number.Add 5 .The result the same as the multiplying original number by 6.What is the number?

    asked by abol sawahani on May 14, 2017
  52. 11th grade Algebra

    A number is multiplied by -3 and then this product is decreased by 7. The result is 4 less than twice the opposite of the number. what is the number?

    asked by Sally on October 4, 2010
  53. maths

    four times a certain number is equal to the number subtracted from forty.find the number

    asked by bello on August 9, 2016
  54. math

    The product of two number is 50. If you divide the larger number by the smaller number you get 2. What are the two numbers?

    asked by sarah on December 9, 2009
  55. Equal-Groups Riddles

    I am a number between 20 and 30. When you put me into 6 equal groups, there is a even number in each group and 1 is left over. What number am I?

    asked by Advait on December 18, 2012
  56. Pampers

    A number is multiplied by 4 and 6 is subtracted from it . The result is the same as when the number is increased by 15. Find the number

    asked by Amara on January 12, 2017
  57. math

    Three-halves of a number exceeds five-sixths of the number by four-thirds.Find the number.

    asked by Hira on June 24, 2016
  58. Math

    Three times a number is the same as that number subtracted from 12. What is the number? A) -6 B) -2 C) 2 D) 3 E) 4 I don't get what the question is asking Its a little confusing

    asked by Candy on July 10, 2013
  59. Math

    A number is drawn at random from {1,2,3,4,5,6}. What is the probability that either a number larger than 3 or an even number will occur?

    asked by Mandeep on April 17, 2012
  60. P4 naths

    Three times a number is greater than half that number by 10. Find the number. Somebody pls help me on this...

    asked by Zapata on February 16, 2017
  61. equal group riddles

    i am a number between 20 and 30.when you put me into 6 equal groups;there is an even number in each group and 1 is left over.what number am i

    asked by joe on January 30, 2010
  62. math,word problem

    Twice the square of a certain whole number added to 3 times the number makes 90.Find the number.

    asked by Raha on September 17, 2011
  63. Math

    One number is 3 times as big as another number. If the difference between these two numbers is 60 then what is the larger number?

    asked by Lawson on January 24, 2014
  64. Maths

    If 12 is subtracted from three times a number the result is equal to two-thirds of the number plus 16.What is the number

    asked by Anonymous on February 1, 2016
  65. Math

    When seven times a number is added to the square of the number the result is 18. Find the number.

    asked by mark on January 1, 2009
  66. Math

    One number is 3 times as big as another number. If the difference between these two numbers is 60 then what is the larger number?

    asked by Lawson on January 25, 2014
  67. Riddles

    i am a number between 30 and 40 When you put me into 8 equal groups there is an even number in each group and 1 is left over what number am i

    asked by Garcia on September 27, 2016
  68. math

    i am a number between 20 and 30. when you put me into 6 equal groups, there is an even number in each group and 1 is left over. what number am i?

    asked by annette on April 26, 2011
  69. math

    i am a number between 20 and 30. when u divide me into 6 equal groups, there is an even number in each group and 2 are left over. what number and I

    asked by christian on October 30, 2011
  70. math

    If you could select a number different from 24 to represent the number of hours in a day what number would you choose? Why?

    asked by anonymous on September 10, 2013
  71. math

    I am a multiple of 10. Factors include an even number and an odd number. Greater than 15 and less than 28. What number am I?

    asked by Jennifer on November 12, 2015
  72. algebra homework help

    Let y be the unknown number. The difference between a number and 11 is equal to the number times 8. Is this correct y-11=y(8)

    asked by jennifer on October 12, 2016
  73. algebra

    the ratio of ten more than three times a number to the square of the same number is equal to one. what is the number?

    asked by Michael on September 14, 2017
  74. Math

    The square root of twice a number is equal to one-half of that number. Find the number.

    asked by Jim on November 10, 2016
  75. algebra

    the ratio of ten more than three times a number to the square of the same number is equal to one. what is the number?

    asked by Michael on September 14, 2017
  76. math

    the median of a set of six number is 2.5 given that five number are 8, 1 , 2 , 11 and 1 , find the sixth number . and explain ...

    asked by mota on December 28, 2007
  77. Math

    14 is added to ⅔ of a number. The result is 1¼ times the original number. Find the number.

    asked by Emmanuel Attai on November 16, 2016
  78. Pampers

    A number is multiplied by 4 and 6 is subtracted from it . The result is the same as when the number is increased by 15. Find the number

    asked by Amara on January 12, 2017
  79. math

    1 number is selected at random from 0-9,find the probability that number is odd number

    asked by kapil on March 21, 2016
  80. math

    Stewart is playing a video game. He earns the same number of points for each prize he captures. He earned 1,200 points for 6 prizes, 2,000 points for 10 prizes, and 2,600 points for 13 prizes. Which is the dependent variable in this situation? A)the number

    asked by kyle on April 4, 2015
  81. Maths

    The first odd number can be expressed as 1 = 1squared - 0squared. The second odd number can be expressed as 3 = 2squared - 1squared. The third odd number can be expressed as 5 = 3squared - 2squeared. a) Express the fourth odd number in this form. (Am I

    asked by Stephanie on November 20, 2008
  82. ALGEBRA 1

    Use inductive reasoning to predict the next Number in each sequence. 1.3,7,11,15... i figure this to be 19 because each number following the first is a difference of 4. 2. 1,-2,4,-8 this is abit difficult for me. I am guessing the answer tobe 10. I

    asked by DANIELLE on February 14, 2007
  83. quad eq

    square of a certain number decreased by 9 times the number is 36 . what is the number Goodness. You have to start to try these, and let us critique. There is nothing like the mind working on its own. N^2-9= what bob, appreciate the sentiment, but if i

    asked by sandy d on February 1, 2007
  84. math

    Bill ran into his neighbor from across the hall and asked her how old her children were. She replied, “Let’s see if you can figure it out. The product of their ages is 72 and the sum of their ages is the same as my apartment number.” Bill thought for

    asked by maggie on January 26, 2017
  85. math, graphs

    the number of counselors must be 1/4 of the number of campers. write a rule for the number of counselors that must be at camp. wrote ordered pairs for the number of counselors when there are 76, 100, 120, and 168 campers.

    asked by b on October 5, 2017
  86. algebra

    three times a first number decreased by a second number is 25. the first number increased by four times the second number is -22. find the numbers

    asked by Anonymous on December 4, 2011
  87. Algebra

    Consider the numbers 1,2,3, and 5. If the same numer is added to each of the numbers, it is found that the ratio of the first new number to the second is the same as the ratio of the third new number to the fourth. Find the number. Please help... I do not

    asked by Heather on June 11, 2006
  88. math

    The number of bacteria in a culture is modeled by: n(t) = 1330e^(0.42t) (a) The initial number of bacteria is: (b) The relative rate of growth of this bacterium population is: (c) The number of bacteria after 3 hours is: (d) After how many hours will the

    asked by NotGonnaSay on November 19, 2012
  89. Health

    What is the correct denominator for calculating the cesarean section rate? A. The total number of discharges B. the total number of deaths for the period C. total number of deliveries for the period D. total surgeries number? I was thinking that the answer

    asked by Anonymous on November 3, 2008
  90. 2 Math Questions

    1) What do you do to check whether a number is rational or irrational? Use an example of a rational and an irrational number. 2) How does finding the square root [√] of a number compare to finding the cube root [^3√] of a number? Use the number 64 in

    asked by ABCDEFGHIJKLMNOPQRSTUVWXYZ on November 6, 2014
  91. Algebra 1

    the sum of eric's and bob's weights is 9 times greater than the difference of their weights. the positive difference of their weights is also 240 lbs less than the sum. if eric weighs less than bob, find bob's weight. i can't find an equation for this. any

    asked by Melanii on February 17, 2009
  92. math, algebra

    2a+2ab+2b I need a lot of help in this one. it says find two consecutive positive integers such that the sum of their square is 85. how would i do this one i have no clue i know what are positive integers.but i don't know how to figure this out. Let n be a

    asked by sana on January 26, 2007
  93. Computer Science

    Define an unambiguous context free grammar that generates the language of strings containing a series of a's followed by a series of b's followed by a series of c's concluding with a series of d's. The number of a's must be exactly the sames as the number

    asked by Anonymous on September 4, 2014
  94. Math

    A sum of money was shared amount Aaron, Ben, and Charles in the ratio 2:5:7 If Charles's share was $1,180 more that Aaron's share, what was the oringinal sum of money shared?

    asked by Ava on September 30, 2016
  95. math

    The number of bacteria in a culture is modeled by n(t)=1710e071t (a) The initial number of bacteria is (b) The relative rate of growth of this bacterium population is (c) The number of bacteria after 3 hours is (d) After how many hours will the number of

    asked by someone on May 12, 2012
  96. Math

    he number of bacteria in a culture is modeled by n(t)=1710e071t (a) The initial number of bacteria is (b) The relative rate of growth of this bacterium population is (c) The number of bacteria after 3 hours is (d) After how many hours will the number of

    asked by someone on May 13, 2012
  97. math

    6 divided by the difference of a number and 2, minus 5 divided by a number plus 2, equals 5 times the reciprocal of the difference of the number squared and 4. What is the number? Please help ASAP!!!!!!!!! :(

    asked by Andrea on October 8, 2018
  98. math

    Assuming that the square root of 2 is rational and is = to an even number divided by an odd number.2 multiplied by the odd number squared is= to the even number squared

    asked by Lebogang on January 20, 2011
  99. math

    what is the rule for greater than less than sign. The greater than sign, > , means that whatever is to the left of it is greater than what is to the right of the sign. The less than sign, < , is just the opposite. Whatever is to the left of the sign is

    asked by Jenny on October 18, 2006
  100. maths

    in GP the product of the Second term and fifth term is double the firth term. find the first term if the sum is first terms is 80 show that r^3+r^2+r+1=40 b. hence find the value of r c.show that the value of the sum of the nth term is 3^n-1

    asked by simanga on October 10, 2018