1. Math

    The number of boys in a class is 10 less than twice the number of girls. Find the total number of the students in the class, if the number of boys is 5 more than the number of girls.

    asked by Saba on June 13, 2017
  2. problem solving

    pasha is thinking of a number such that when twice the number i added to three times one more than the number she gets the same result as when she multiplies four times one less than the number. what number is pasha is thinking about

    asked by Anonymous on January 14, 2016
  3. Chemistry

    Research the contributions from these two scientists and read about how Avogadro’s number got its name. Briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid

    asked by Darryl on January 19, 2018
  4. Math

    1. use the suitable product-to-sum formula to rewrite the following expression: sin(13x/2)sin(5x/2) 2. Find value of cos(255degrees)cos(105degrees) is it 1/4? 3. cos(pi/12) - cos(5pi/12) root3/4? 4. Use the appropriate sum-to-product formula to rewrite the

    asked by mysterychicken on June 3, 2013
  5. Physics/Math

    What is the sum of the following four vectors in unit-vector notation? For that sum, what are (b) the magnitude, (c) the angle in degrees, and (d) the angle in radians? E: 6.36 m at +0.90 rad F: 4.52 m at -75 ° G: 3.31 m at +1.20 rad H: 5.4 m at -210 °

    asked by TechnoBoi11 on January 27, 2007
  6. physics vectors

    In the sum A+B+=C, vector A has a magnitude of 11.4 m and is angled 48.4 degrees counterclockwise from the +x direction, and vector C has a magnitude of 14.8 m and is angled 16.6 degrees counterclockwise from the -x-direction. What are the A) magnitude and

    asked by kkbrabra on February 7, 2018
  7. imp4

    Pow 3 "a sticky gum" revisited Gumballs are 1 penny each. The kids each want a different color. what is the maximum spent with each generalization. create formulas for the following. Generalize the number of children. Generalize the number of gum ball each

    asked by Anonymous on September 19, 2012
  8. Human Development

    To assess a child's linguistic development, professionals often use a method called mean length utterance (MLU). This method is applied by counting the number of A. utterances in a conversation. B. syllables and dividing by the number of words. C. phonemes

    asked by Diana on October 23, 2018
  9. math

    the first number of a sequence is 200. every number of the sequence after the first is 100 less than twice the preceding number. what is the 5th number of the sequence

    asked by anonymous on July 24, 2013
  10. MATH

    the first number of a sequence is 200. every number of the sequence after the first is 100 less than twice the preceding number. what is the 5th number of the sequence

    asked by Help!! on July 24, 2013
  11. maths

    An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer. maths - Steve Monday, July 17, 2017 at 12:11pm 10/2 (2a+9d) = 220 5/2 (2a+4*2d) = 100 maths -

    asked by kumar on July 19, 2017
  12. math,correction

    the problem reads: evaluate sqrt (-4) if possible. my answer: sqrt (-4)

    asked by jasmine20 on April 19, 2007
  13. Math

    Help! How do I complete these magic squares! They're taking me FOREVER! In magic squares, certain numbers have to add up to a certain sum, and be the same sum diagonal,across,and vertical. (Sorry if I didn't explain well) Arrange the numbers

    asked by math on August 25, 2010
  14. Math!

    Please Please Please help me! I'm really behind and need to get this done and i'm really confused. 1. 5h – 9 = –16 + 6h (1 point) 4 –7 7 10 2. 4x + 4 = 9x – 36 (1 point) –8 –7 8 –3 3. Which of the following equations has an infinite number of

    asked by Marie on December 16, 2013
  15. Math ~CHECK MY WORK~

    With stars are my answers. Please check them if they are wrong please tell me the right ones. Number 1 (the bottom one) I don't get it so please help me with that one please! 1) You have $60 in your wallet and want to buy some new CDs. If the CDs are $11

    asked by Wendy on January 16, 2014
  16. algebra

    I need help badly with this assignment. If Venus is 33.3 million miles farther from the sun than Mercury, then Earth is 25.6 million miles farther from the sum than venus. When the total of the ditances for these three planets from the sum is 191.2 million

    asked by Sarah on November 12, 2009
  17. physics

    Two vectors have magnitudes 3.0 and 4.0. How are the directions of the two vectors related given the following conditions? 1) The sum has magnitude 7.0. (a)They both point in the same direction. (b)They each point in opposite directions. (c) They are

    asked by Eunice on February 7, 2010
  18. Finance

    Mooncorp Insurance has quoted you an annual premium to insure your car of $3100. You are offered a 15% discount if you pay the lump sum immediately. They also offer an alternative payment method. You can pay the account in full by making 12 equal beginning

    asked by Raila on December 11, 2015
  19. probability

    A fair coin is flipped independently until the first Heads is observed. Let K be the number of Tails observed before the first Heads (note that K is a random variable). For k=0,1,2,…,K, let Xk be a continuous random variable that is uniform over the

    asked by JuanPro on March 28, 2014
  20. programming

    Create three (3) one-dimensional arrays: Item Number, Quantity-on-hand and Unit Cost for 15 items. Input data into all the arrays. After the data is entered, read an arbitrary number of records containing an item number and quantity-ordered. If the

    asked by lidia on February 21, 2014
  21. Math

    Which of the following is a certain event? A. Rolling a composite number on a number cube B. Rolling a number greater than 1 on a number cube C. Rolling an odd or even number on a number cube D. Rolling a number greater then 7

    asked by FartHead on May 13, 2016
  22. Pre algebra

    Which of these nonterminating decimals can be converted into a rational number A 0.48907542 repeating B 0.02020202 repeating C 0.92589542 repeating D 0.10203040 repeating ******* Paul is painting a square wall with an area of 115 square feet. To the

    asked by orangygirl on November 2, 2015
  23. math

    The product of a number and 2 has the same value as that number minus 2. What is that number? not just an answer. A.-4 B-2 C.-1 D.0 E.2

    asked by Johnny on January 24, 2014
  24. math

    A number divisible by another number when the ________ after division by that number is 0?

    asked by samantha on January 12, 2011
  25. algebra

    One sixth of a certain number and three-eighths of the same number total 13. What is the number

    asked by jaime on January 12, 2016
  26. Math

    I don't know how to answer this. If 10% of a number is 2 less than 20% of the same number, then 80% of the number equals_______.

    asked by John on August 21, 2014
  27. Math

    The recipocal of 4 less than a number is three times the reciprocal of the same number.What is the number?

    asked by Melani Valera on January 1, 2017
  28. math

    3 times a number is greater than half of the number by 50. What is the number?

    asked by amy on October 25, 2017
  29. math 3

    is it possible for a number to be a rational number that is not an integer but is a whole number? explain

    asked by STEFIE on September 8, 2014
  30. math

    30 is added to 1/3 of a number. the results is double the number. What is the number?

    asked by tyler on May 14, 2009
  31. Math

    one less than a positive number times three more than that number is 32. Find the number

    asked by Jony on March 18, 2016
  32. m

    3 is subtracted from a number and exceed twice of a number.find the number

    asked by nafeesa on October 21, 2015
  33. pre-algebra

    number increased by 1/3 itself, number is 84, find original number

    asked by carol on May 20, 2016
  34. Math

    Find a number such that one-half of the number is 12 less than two-thirds of the number

    asked by Chanelle on January 29, 2013
  35. math

    number Puzzles: My number is less than 200. My number is less than 400.

    asked by Dee on October 28, 2008
  36. algebra

    Eight times the opposite of a number is 36 less than the product of 4 and the number. What is the number?

    asked by Jordan on November 16, 2011
  37. Active math's

    There are the consecutive number. First and third number is 72 .find the middle number.

    asked by Kajol trishulia on May 3, 2017
  38. math ALG 2!

    Four times a certain number is the same as the number increased by 78. Find the number.

    asked by tyneisha on December 13, 2012
  39. math

    what is three less than 11 times a number is the same as the number decreased by 13. find the number

    asked by zoey on December 6, 2012
  40. albgrea

    what three times a number is subtracted from 12, the result is 4 plus the number. what is the number?

    asked by TIM on October 15, 2009
  41. Math

    Greatest number round number 30000 least number

    asked by Angel joyce on June 28, 2015
  42. Math

    A number between 10 and 20. It rounds to 20. One of this number's digits is 5 greater than the other. What number is it?

    asked by Sharon on October 28, 2012
  43. math 5th grade

    my number is a multiple of 4. It's a square number. It's less than 50 what is the number/numbers

    asked by tryston on September 30, 2010
  44. Math

    I have a certain number and take away 1 the result is the same as dividing the number by 3 and adding it. what is the number.

    asked by Kabiru on December 14, 2018
  45. math

    One number is greater than another by 40/11. If the smaller number is less than 47/22 by 1/2, find the number.

    asked by Debabrata Show on March 19, 2017
  46. Algebra

    One number exceeds another by 4. If three times the larger number is divided by the smaller number, the quotient is 4 and the remainder is 5. Find the numbers. (I am trying to figure out how to explain how to do this to my son. He is struggling and will be

    asked by Carissa on January 17, 2017
  47. Maths

    A drinking straw of length 21cm is cut into 3 pieces the length of the first piece is x cm the second piece is 3 cm shorter than the first piece the third is twice as long as the first piece state term of x to represent the sum of of the length {2} write

    asked by RAHEIM on August 18, 2012
  48. algebra

    A cashier has a total of 34 bills, made up of ones, fives, and twenties. The number of fives is one less than the number of twenties. The total value of the money is $237. How many of each denomination of bills are there? (Hint: Let x = the number of ones,

    asked by Lindsey on February 13, 2016
  49. Maths

    Really really need some help here., There was an I.T. Fair. 2/9 of the visitors were children. There were 4000 more adults than children. The ratio of boys to the number of girls was 3:5. The ratio of number of men to number of women was 3:1. Find the

    asked by J.Sarah on October 7, 2014
  50. math

    Which proportion can be used to determine what number is 15% of 30? 15/30 = x/100 15/100 = x/30*** 15/100 = 30/x 30/100 = 15/x Which equation can be used to determine what number, n, is 40% of 64? (40)(64) = n 40 divided by 64 = n 0.40(64) = n*** 64n =

    asked by Iris on November 12, 2018
  51. math

    1. which proportion can be used to determine what number is 15% of 30 15/30 = x/100 15/100 = x/30 15/100 = 30/x 30/100 = 15/x 2. which equation can be used to determine what number n is 40% of 64? (40)(64) = n 40 divided by 64= n 0.40(64)= n 64n = 0.40

    asked by Iris on November 12, 2018
  52. math

    the "k"th term of a series, Sk=a 1-r^k/1-r, is the sum of the first "k" terms of the underlying sequence. the difference between the "n"th terms of two particular series is greater than 14 for some values of n (is an element of) N. the series with general

    asked by liza on December 29, 2010
  53. computer science /use java language

    write the program that inputs a string representing a binary number(0s and 1s). First, your program should veerify that it is indeed a binary number, that is, the number contains only 0s and 1s . if that is not the case, your program should print a message

    asked by Mira on October 30, 2008
  54. chemistry

    How do you calculate the % empty sapce in 100mL of air. Using Avogadro's number(6.02x10^23) and the average volume of O2 and N2(3.8x10^-24 cm3/molecule). I think you can use the ideal gas law but am not really sure how to do it. I also have a similar

    asked by Christy on February 4, 2009
  55. Precalculus

    The 8th term in an arithmetic sequence is 5, and the sum of the first 10 terms is 20. Find the common difference and the first term of the sequence. Alright so in an arithmetic squence the difference d between any two successive numbers is constant. So if

    asked by Trudy on January 20, 2007
  56. chemistry

    the mass number is used to calculate the number of-----------in one atom of an element. in order to calculate the number of neutrons you must subtract the ------from the-----------

    asked by jennifer on October 7, 2008
  57. math

    Copy of Consider the charged particle S2- Match the first column with the correct number in the second column. Note: •The same number may be used more than once, if necessary.. •Not every number will be used.

    asked by Anonymous on June 3, 2014
  58. math

    One number is 5 more than another number. Four times the larger number plus 3 times the smaller is 97. find the numbers. Show your work.

    asked by allan on January 20, 2010
  59. 3rd grade

    if you round the number to the tens place, it is 460 if you round the number to the hundreds, it is 500 could the number be 468 and why

    asked by jim on October 13, 2009
  60. Algebra

    How does finding the square root [J ] of a number compare to fnding the cube root [3 J- ] of a number? Use the number 64 in your explanation.

    asked by BLOODWOLFPrincess+nurse on December 5, 2018
  61. Math

    If a composite number has the first five prime numbers as factors, what is the smallest number it could be? Write that number's prime factorization.

    asked by Sue on September 23, 2009
  62. palm valley

    ruben is thinking of a mystery number. if he multiplies the number by 6 and then divides it by 9, the result is 708. what is the mystery number

    asked by Jeannette on October 19, 2016
  63. Math

    What is the probability of rolling cube and getting a 4 and then an even number? A. 1/6 B. 1/2** C. 1/12 D. 2/3 A coin is tossed and a number cube is rolled. What is P(heads, a number less than 5)? A 1/3 B 5/12 C 2/3 D 5/6

    asked by Check pls on May 19, 2017
  64. Math

    A number is added to 7 and the result is multiplied by 4. The final answer is twice the original number . Find the original number.

    asked by Seyi on January 19, 2014
  65. Math

    In a little town in West Michigan lives a math professor, who hears one day that the barber has three children. So, on the next visit to the barber, the professor casually inquires, "I have heard you have three children, is that right?" "Yes!" says the

    asked by Tyler on September 21, 2007
  66. Mathematics

    Since the beginning of satellite radio in 2001, the number of satellite radio subscribers has been growing very quickly. At the end of 2001, the total number of subscribers to XM Satellite radio was 27,733. By the end of 2005, the number of subscribers had

    asked by Daisy on November 6, 2010
  67. math

    If you have 100 numbers (1 - 100, including 1 and 100) and you choose 2 of them then do the formula x + y + xy (x being the first number and y being the second) and you replace the 2 numbers chosen with that new number, what are the last possible values

    asked by Dennis on March 10, 2015
  68. Calculus

    Find the sum and difference functions f + g and f – g for the functions given. f(x) = 2x + 6 and g(x) = 2x - 6 f(x) = x^2 - x and g(x) = -3x + 1 f(x) = 3x^3 - 4 and g(x) = -x^2 + 3 State the domain and range for the sum and difference functions in #3.

    asked by Bee on September 2, 2013
  69. physics

    consider a massless cord attached at both ends to hooks in a ceiling. A 20 kg mass is then suspended from the first cord by a second cors. The angles made by the cord with the ceiling are 40 degrees (left angle) and 25 degrees (right angle). Find the

    asked by randy on November 20, 2006
  70. math

    yash invest 1200 in scheme A ,which offers a compd interest at rate of 20% for 2 yrs.he invested a certain sum in scheme B which offers simple interest at rate of 15 % for a period of 3 year. interest received from scheme A Is 42rs more than that received

    asked by arun on September 20, 2017
  71. Math

    What is the mean number of votes for the snow cone flavors? Cherry 40 Strawberry 7- Grape 30 Lime 20 Rainbow 40 A.180 B.36 C.40 D.18 C The range of a set of numbers is 52. The number with the greatest value in the set is 248. What is the number with the

    asked by Jerald on April 9, 2013
  72. math

    A single, standard number cube is tossed. What is the probability of getting a number other than 6? A game involves spinning this spinner. What is the probability of the pointer landing on Y? The table shows the color preferences of 50 shoppers at the

    asked by Can someone help? double checkin my answers on May 30, 2017
  73. Math

    A surgical technique is performed on 7 patients. There is a 70% chance of success. Find the probability that the surgery is successful for at least 5 patients and what is the expected number of successes out of 20 surgeries. My attempt was: P(xmore than or

    asked by Resa on March 10, 2015
  74. math

    Taxicab Distances Problem. Imagine that the grid lines on a coordinate grid are streets and that the distance between two points must be measured by the number of “blocks” a taxicab would have to travel horizontally and vertically to get from one point

    asked by candy on July 7, 2011
  75. math

    The average of 5 scores has the same value as the median of 5 scores. The sum of 5 scores is 420. What is the sum of 4 scores that are NOT the median?

    asked by Anonymous on February 10, 2019
  76. Algebra

    The larger of the two is 1 less than 3 times the smaller number . If twice the smaller number is increased by the larger number, the result is 18 more than the larger number. Find both numbers

    asked by Anonymous on August 29, 2017
  77. Substitution Method in Algebra!HELP PLZ!

    Use the Substitution method to solve the system of equations. 3x + y = 5 4x - 7y = -10 multiply first equation by 4 multiply second equation by 3 thus both equations have same x or y value in this case it is the x value. 12x + 4y = 20 12x - 21y = -30 solve

    asked by Matthew on November 5, 2006
  78. 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

    asked by lover454 on August 11, 2008
  79. math 3

    Peter is playing a game where a ten-sided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27. What is the expected value of a

    asked by kj on June 11, 2012
  80. math 3

    Peter is playing a game where a ten-sided die is rolled. Four sides of the die have the number 10, three sides of the die have the number 5, two sides of the die have the number 25, and one side of the die has the number 27. What is the expected value of a

    asked by kj on June 11, 2012
  81. Math

    Mr. Singh deposited $170 in his bank. The number of $5 bills was three times the number of $10 bills and the number of one dollar bills was 30 more than the number of five dollar bills how many bills of each type did he deposit

    asked by Valentina on October 1, 2013
  82. math

    The atomic number of cadium is half the atomic number of curium. Define a variable and write an expression for the atomic number of cadmium. I'm working in a group with my friends and we need help we're not the same people.

    asked by Samantha on September 8, 2010
  83. math

    The atomic number of cadium is half the atomic number of curium. Define a variable and write an expression for the atomic number of cadmium. I'm working in a group with my friends and we need help we're not the same people.

    asked by Martin on September 8, 2010
  84. math

    The atomic number of cadium is half the atomic number of curium. Define a variable and write an expression for the atomic number of cadmium. I'm working in a group with my friends and we need help we're not the same people.

    asked by Ricky on September 8, 2010
  85. Math

    TRUE OR FALSE ? Justify your answer. a. There exist real numbers a and b such (a+b)^2 = a^2 + b^2. b. For any real number x, there exists a unique number -x such that x + (-x) = 0. c. Any integer n is either odd or even. d. Any real number x can be written

    asked by Alfonso on March 3, 2016
  86. math

    Which of the following is a certain event? 1) rolling a composite number on a number cube 2)rolling a number greater than 1 on a number cube 3)rolling an odd or even number on a number cube 4)rolling an odd or even number greater than 7 I think # 3 Thanks

    asked by JAMIE on May 11, 2017
  87. Math

    On Thursday after work the number of cars in a parking lot increased at a steady rate of 17 cars every 5 minutes which rational number describes the number of cars per minute

    asked by Unicornheart on October 15, 2018
  88. Math Question

    A Teacher gives each student a number. She tells the students to line up according to their number. Some students had trouble doing this. What knowledge of number operations are the students missing? Is the answer ordinal numbers?

    asked by Sheila on December 6, 2016
  89. Math intermediate algebra

    The perimeter of a triangle is 33 inches. The sum of the length of the longest side and twice the length of the shortest side is 31 inches. Twice the length of the longest side minus the sum of the lengths of the other sides is 12 inches. Find the lengths

    asked by Jack on April 10, 2017
  90. Math

    I am confused with this problem could someone please explain? Taxicab Distances Problem. Imagine that the grid lines on a coordinate grid are streets and that the distance between two points must be measured by the number of "blocks" a taxicab would have

    asked by B.B. on September 18, 2009
  91. mathematics

    The cafeteria has 144 bananas, 36 pears, and 72 apples. Each student gets the same number of pieces of fruit. What is the greatest number of students who can receive fruit? The 48 members of a chorus will sit in rows in front of the 300 members of the

    asked by Aubrey on October 15, 2013
  92. Math

    Jade counted the number of the students on each sports time at her school and the number of wins the team had last season. If she displays her data on a scatter plot, what type of relationship will she most likely see between the number of students on a

    asked by Please help on October 18, 2011
  93. 6th grade math

    A single, standard number cube is tossed. What is the probability of getting a number greater than 3? A. 2/3 B. 1/3 C. 1/6 D. 1/2 I think that it's D because a standard number cube has 6 numbers, and if we could get a number greater than 3, three is half

    asked by Lily L. on May 14, 2016
  94. Math(Connexus 6th) Unit 6

    A mail-order supplier of small electrical parts charges a shipping fee of $8, plus $5 for each push-button light switch ordered. If x is the number of push-button switches ordered, then the expression for the total cost of an order is 5x + 8. Which table

    asked by Can you help me please(I need answers fast) on December 6, 2017
  95. Chemistry

    A neutral atom of an element has 2 electrons with n=1, 8 electrons with n=2, and 5 electrons with n=3. Write its electron configuration and find: A) atomic number B) total number of s electrons C) total number p electrons D) total number of protons

    asked by Taylor Beach on February 24, 2014
  96. java programming

    Create a program that will generate lottery numbers for the user. There are two types of numbers in the lottery, the standard numbers 1-43 and the power ball number 1-60.There are three different lottery games, a three number game, a five number game with

    asked by JR on April 7, 2012
  97. physics

    vector (V1) is 6.3 units long and points along the negative (X) axis. Vector(V2) is 9.0 units long and points at 55 degree to the positive (X)axis. 1- What are the (X) and (Y) components of (V1) vector ? 2-What are the (X) and (Y) components of(V2) vector

    asked by july on October 9, 2011
  98. Math

    The average of X numbers is 15. If the sum of the X numbers is 90, what is the value of X? A)5, B)6, C)8, D)15 or E)75 What is the correct answer and how do you set up the equation? The answer is b)6 because if there are 15 average numbers and the sum is

    asked by George on February 25, 2007
  99. Economics

    Suppose that there are 1,000 hot-pretzel stands operating in Toronto. Each stand has the usual U-shaped average total cost curve. Both the market demand curve and the supply curve for pretzels are linear, and the market for pretzels is in long-run

    asked by Joy on September 27, 2013
  100. math

    True or false 1.) The set of integers contains the set of rational numbers 2.)Every repeating decimal is a rational number 3.)Every square root is an irrational number 4.) the set of whole numbers contains the set of rational number 5.)every terminating

    asked by xavier on October 30, 2017