1. Math

    I am having in my fifth grade math class. We are learning Number and Operations Base Ten. How can I solve this question? I have 13 hundreds, 1 tens, 7 ones, 5 tenths, and 19 hundredths. What number am I?
  2. chemistry

    What is one situation in which measurements have an unlimited number of significant figures? When we define a number; i.e., 2.5400000000 cm = 1.00000000 inch. OR 12.00000 inches = 1.000000 foot.
  3. Science Significant Figures

    Calculate the area, with the appropriate number of significant figures, of a rectangular room that is 14.10 m wide by 15.0 m long. If I multiply the two values and round to the nearest whole number, I get 212 m^2. Is this right?
  4. math

    Annual profit in thousands of dollars is given by the function, P(x) = -.01x2 + 50x + 30,000, where x is the number of items sold, x ¡Ý 0. 1.describe the meaning of the number -.01 in the formula
  5. Math

    Every day Sally saved a penny, a dime, and a quarter. What is the least number of days required for her to save an amount equivalent to an integral number of dollars?
  6. 3rd grade math

    We have figured out answer BUT we cant figure out the steps to get it During gym class, the teacher gave students a number as they stood in line she counted 1, 2 and 3 then 1, 2 and 3 ...... What number did 22 second person get?
  7. Math - Mean Value Theorem

    Suppose f(x)=αx^2+βx+γ is a general quadratic polynomial with α≠0 and let [a,b] be any interval. According to the Mean Value Theorem there is at least one number c such that f(b)−f(a)=f′(c)(b−a). In this particular case the number c is unique
  8. Math 111

    Find the quadratic function that has vertex (-1, 8) and whose graph goes through the point (8, 170). I could not understand this problem I Can not for the lift of me get it. I got as far as some number(x+1)^2+8 but i don't know what the number before all
  9. algebra

    help please the equation of y= 1777x+27,153 can be used to predict the number yof gun deaths in the united states after 2000 that is x=0 corresponds is x=2000x=3 x=correspopnds to 2003 x=6 corresponds to 2003 abd so on predict the number of gun deaths in
  10. Help w/Quattro Formula

    Am getting frustrated w/failing to get Quattro Pro formula right. Here's what I'm looking for: Col. A = Base period number Col. B = Given number this current period. Formula I need: If B >= A, what is %? (Example: A=20, B=30, the # I want should read 50.0,
  11. Math: Integers

    Hey guys! I need help with this problem..it tells me to write a number line to tell the answer..the question is : What is the smallest integer greater than -2.1? Is it to -2 right? I have no idea. I forgot all this back in elementary T_T. Yes. Negative
  12. Math Block Problem

    A child organizes animal blocks in rows on the ground. There are 64 animal blocks in the 5th row & 92 of those blocks in the 9th and last row. Suppose that the number of animal blocks frm row to row form an arithmetic sequence. The number of animal blocks
  13. Math

    If z is a non-real complex number and z^2−26z is a real number, what is the value of z+z¯? z¯ denotes the conjugate of the complex number z.
  14. math

    Let's find the least square number other than zero which is divisible by 10,15,20and 30.Also let's write the next square number which will be divisible by these number.
  15. math

    one number is greater than 3 times the other number by 3. Four times the smaller exceeds the greater by 2 find the number.
  16. maths

    The number of boys is 3/2 the number of girls in the class. the total strength of class is 40.what is the number of girls?
  17. English

    I will check your reading activity with a gun on the screen of this laptop. (A gun is a selecting program on the computer.) When a number shows up on the screen, the student should come up here and read one part aloud. This reading text is divided into 4
  18. Chemistry Subatomic particles

    Fill in the chart (Numbers correspond to each other[I.E 1 in 1st group connects with 1in 2nd]) Subatomic particle found 1.Proton 2.Neutron 3.Electron Scientist 1.Rutherford 2.Chadwick 3.Thomson Experiment 1.Gold Foil Experiment? 2.? 3.Cathode Ray Tube Data
  19. Chemistry

    I have 3NaBH4 + 4BF3.Et2O to form 2B2H6 th number of moles of NaBH4 is 0.0368mol and the number of moles of BF3.Et2O is 0.0162mol accoring to the ratio of reaction 3:4 the limiting reactant is BF3.Et2O so its the one used to find number of moles of
  20. maths

    The following shows the number of chairs rented and returned to Zippy party rentals. For the period Monday to Friday of a week in May. Number of chairs rented: Mon: 113 Tues: 367 Wed:258 Thurs:969 Fri: 1,083 Number of Chairs returned: Mon: 46 Tues: Wed: 96
  21. another one ASAP

    using the number 5, 8, and 24, create a problem using no more than four operations (addition, subtraction, multiplication, division, square, square root, cube, cube root) where the solution will be an irrational number. explain why the result of your
  22. Math

    A candy machine contains 5 times the number of nickels in dimes and is less than 16 the number of quarters. Total value is $12.80. How many are there nickels and dimes? I can't understand what means 5 times the number of nickels in dimes. How do you put
  23. math

    Tina solved for the decimal value 0f (3/5*18) and got an answer of 5.4. Four of her classmates argued that her answer was not reasonable. Which of the following statements best explain why that value can not =5.4 A. the number 18 is a multiple of 3 , so
  24. math,help

    can someone help me with this i am lost now i've been doing math for the past 8 hrs. Problem # 1 solve: 4(x-10)-3x=x-40 Problem # 2 solve for t: a = p + prt Problem#3 translate to an algebraic equation 7 less than the quotient of a number and 3 is twice
  25. Calculus

    q = f(p) = 10300e^−0.34p a) Find the number of products sold when the price of the product is $5. (Round your answer to the nearest whole number.) Number of products sold: b) Find a formula for the rate of change in the number of products sold when the
  26. algebra

    Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original
  27. algebra

    Classes A and B have 35 students each. If seven girls shift from class A to class B, then the number of girls in the classes would interchange. If four girls shift from class B to class A, then the number of girls in class A would be twice the original
  28. science

    1. When Mendeleyev arranged the elements into the periodic table, he found that elements with fell into groups on the table A. the same mass B. similar size C. Similar properties D. The same color 2. Every element has its own atomic number. The atomic
  29. Calculus

    Solve the differential equation. Let C represent an arbitrary constant. (Note: In this case, your answer willto have a negative sign in front of the arbitrary C.) (dz)/(dt) + e^(t+z) = 0 --------------- (dz/dt) + (e^t)(e^z) = 0 (dz/dt) = -(e^t)(e^z) dz =
  30. chem expirement!

    You are required to design an experiment to test Hess's law using the combustion of ethanol. Write a brief design for this experiment. What I wrote as my answer: Hess’ Law: is the algebraic addition of chemical equations yields a net equation whose
  31. math

    The number is even. Clue 2 The number is divisible by 3. Clue 3 The number is a multiple of 7? what is this?
  32. Round t Numbers2-Digi

    It rounds to 30. The number of ones is greater than the number of tens. It is greater than 30. What number is it?
  33. algebra

    5 times a number decrease by 18 minus 4 times the same number is -36 what is the number
  34. Math

    Convert each improper mixed number to a whole number or a mixed number: (A) 24 2/2 (b) 7 4/2 (c) 2 5/3 (d) 9 5/4 (E) 36 3/2 (f) 32 4/3 (g) 3 3/3 (h) 10 8/8
  35. Algebra

    If twice the opposite of a number increased by five, then the result is the opposite of a number. What is the number? What is this even asking off me?
  36. Math

    The average of third number is 29 if the average of two number is27 .find the third number ?
  37. math

    The reciprocal of a number minus the reciprocal of two less than the number is -2/15. find the number.
  38. math

    When four times the number is added to 7 times the number, the result is 33, what is the number?
  39. algebra

    One more than 3 times a number is the same as 5 times the number decreased by 15. Find the number
  40. algebra

    if 7 times a certain number is subtracted from 6, the result is 5 times the number. what is the number?
  41. Math

    Which statement is correct? A. All intergers are rational numbers. B. All irrational numbers are whole numbers. C. A real number must be a rational number. D. A repeating decimal is an irrational number I think it's either A or C.
  42. chemistry

    The density of platinum is 21500 kg/m3 and the cell volume is 6.04 x 10-26 L. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number.
  43. Chemistry

    The density of cesium is 1870 kg/m3 and the cell volume is 2.23 x 10-22 mL. Determine the number of atoms in the unit cell. Note: the number of atoms in a unit cell is a whole number.
  44. number story

    Hi I wanted to know what is a number story? a number story is a story that has a problem that you have to figure out the solution to figure out the answer to the number problem. I know it's a little confusing, but that's the best i can do!!! thank you very
  45. Math

    The average of five number is 56. Four of the numbers are the same. The average of one of the four number and the fifth number is 80. What is the fifth number. 56*5=280 80*2=160 280-160=120 5/120=24 Is 24 correct?
  46. Calculus

    Joe dealt 20 cards from a standard 52-card deck, and the number of red cards exceeded the number of black cards by 8. He reshuffled the cards and dealt 30 cards. This time, the number of red cards exceeded the number of black cards by 10. Determine which
  47. Math Word Problems

    Hi, I am having some trouble with some problems, can you please help. thanxs!!! 1. A car rental agency charges $250 per week plus $0.25 per mile to rent a car. How many miles can you travel in one week for $300? -Would the equation look like: 300= 250x +
  48. Math 124

    There are several ways you might think you could enter numbers in WebAssign, that would not be interpreted as numbers. N.B. There may be hints in RED!!! You cannot have commas in numbers. You cannot have a space in a number. You cannot substitute the
  49. Algebra

    Tickets for the senior play at the local elementary school cost $3 for children, $5 for students, and $8 for adults. 800 tickets were sold and the total in ticket sales was $4750. The number of adult tickets sold was 50 more than two times the number of
  50. Chemistry

    For another picnic you want to make hamburgers with pickles, again without having any left over. You need to balance the number of packages of buns (which usually contain 8 buns) with the number of packages of hamburger patties (which usually contain 12
  51. MATHS

    Class A and Class B have the same number of pupils. The ratio of the number of boys in Class A to the number of boys in class B is 3:2. The ratio of the number of girls in Class A to the number in Class B is 3:5. Find the ratio of the number of boys to the
  52. science help plzzzzzzzzzzzzzzz?

    Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). The experimental hypothesis was
  53. Calculus

    Estimate the area under the graph of 25−x 2 from x = 0 to x = 5 using 5 left rectangles. b. Sketch for yourself the graph of f and the rectangles. Is this left sum an overestimate or underestimate? Enter OVER or UNDER. c. Now use 5 right rectangles to
  54. Math

    1. Which number is a solution of the inequality? 10.68 A)-5 B)-6 C)6*** D)7 3. Which number is a solution of the inequality? 12 < y ( 8 - y ) A. 0 B. 1 C. 2 D. 3*** 4. If N is the set of natural numbers that are factors of 24, choose the selection below
  55. algebra

    the number of people that can be seated in a lecture hall varies directly with the number of rows of seats. if 72 people can be seated in 4 rows, write a direct variation equation to describe the number of people y that can be seated in x rows. then graph
  56. statistics

    Suppose the number of customer complaints per day on the morning shift 6-12 noon at Doys is distributed as # of complaints f(x) 0 .3 1 ? 2 .2 what is the value of the missing probability? What is the average number of complaints per day on the morning
  57. maths

    In the year 2000 there were 350 mobile phones users living in the small town of Phoneville. Since 2000 the number of residents using mobile phones has increased by 25% each year, that is, each year the number of mobile phones increases by a factor of 1.25
  58. Statistics/Probability

    Each day a bakery delivers the same number of loaves of bread to local shop on the corner. On average the shop sells 75% of loaves. Assuming that the number of loaves sold per day has binomial distribution with a standard deviation of 9. Find the number of
  59. Math

    6.Sherman read 154 pages of a book in 4 days. He read 32 pages on each day of the first 2 days and y pages on the third.Which equation can be used to find p, the number of pages Sherman read on the fourth day? A.p=154-32(2xy) B.p=154-(32x2)-y
  60. Math

    The chart shows the total number of students in two school orchestras and the number of students in each orchestra who play string instruments. Which orchestra has the greater percent of its members as string instrumentalist? Orchestra Number of String
  61. Completely Randomized ANOVA

    Forty eight subjects were randomly assigned to one of 4 treatment conditions in a study of different methods of coping with statistics exam anxiety. After the experiment, 12 subjects remained in group 1, 8 in group 2, 10 in group 3, and 10 in group 4. The
  62. Science need help

    Sue is setting up an experiment to test whether fly maggots select a dark or a brightly lit environment. She sets up a chamber in which there is a gradient in light intensity from one end (dark) to the other (brightly lit). The experimental hypothesis was
  63. Math

    Which of the following is a prime #? a.2 b.19 c.37 d.51 e.67 I choose 2. But the book answer is 51. The book says:( 2,19,37, and 67 are prime #'s) 3x17=51, so it is not prime. I forgot what prime #'s mean that's why I choose anything like 2. help me. A
  64. Computers

    1. There is a requirement to store 750 records. The number of buckets is 10,000. The number of slots per bucket is 3. What is the PPD? 2. Hashing Algorithm Computation The record key is 1234AB6. The number of buckets is as per the PPD computation above in
  65. Computers

    1. There is a requirement to store 750 records. The number of buckets is 10,000. The number of slots per bucket is 3. What is the PPD? 2. Hashing Algorithm Computation The record key is 1234AB6. The number of buckets is as per the PPD computation above in
  66. math

    There are ten children standing in the line, not all of whom have the same number of cakes with them. If the first child distributes his cakes to the remaining six children such that he doubles their respective number of cakes, then he will be left with
  67. Math

    1. Write the place name for the 4 in the following number: 3,624,786 Answer: Thousand 2. Round the following number to the nearest ten: 53 Answer: 5 3. Find the sum of the following problem: 2,168 + 305 Answer: 2473 4. Estimate the sum of the following
  68. 4th Grade Math Correction

    PLEASE HELP.I am sorry. I posted the question wrong earlier this evening. Instead of 300 it should have read: 3000 exercise books are arranged into 3 piles. The first pile has 10 more number of books than the second pile. The number of books in the second
  69. Math

    The number f water hyacinth plants growing on a lake increases exponentially with time. On Tuesday the number of plants is 150. That Friday the number has risen to 240. If it takes 3400 plants to completely cover the lake, will the lake be completely
  70. Math clarification Reiny

    This is the problem you helped me with. I was curious, do I write the solution set as (1 + i3ã3)/2, (1-i3ã3)/2 change it to the standard form first x^2 - x + 7 = 0 a=1, b=-1, c = 7 x = (1 } ã(1 - 4(1)(7))/2 = (1 } ã-27)/2 Your answer is an
  71. Math Reiny question

    This is the problem you helped me with. I was curious, do I write the solution set as (1 + i3ã3)/2, (1-i3ã3)/2 change it to the standard form first x^2 - x + 7 = 0 a=1, b=-1, c = 7 x = (1 } ã(1 - 4(1)(7))/2 = (1 } ã-27)/2 Your answer is an
  72. math

    plese see if they are correct thx a million 16. the product of a number and twelve A. x^y*12 25. Name the sets of numbers to wich the number belongs 35/5 i don't even understand this one plse hlep
  73. math short response

    i need to write a short response: a number is divided by 2, then is subtracted from the result. what operations are needed to return to the original number? i wrote division and subtraction n/2 - N = ? im not sure how to answer this can you help[
  74. How do I calculate the number of atoms in a compou

    I have the mass of the amount of substance, and the molar masses. How do I do this? Is this the same as calculating the number of molecules/ formula units? Also, I know the number of atoms for each element in the compound (It made me calculate that before)
  75. the percent equation

    1. find 30% 0f 70 2 what is 80% of 65 3 what percent of 56 is 14 4 36 is what percent of 40 5 80 is 40% of what number? 6 65% of what number is 78 7 what percent of 2000 is 6 8 12 is what percent of 4000 9 what percent of 3000 is 18 10 what is 110% of 80
  76. maths calculus

    A centre enters students for English levels one and two end test every year. Some take the paper based version, others online version. For planning purposes you need to assume trend patterns indicate that .the total number of entries each year is always
  77. Math

    I have to find the median, the lower quartile, the upper quartile, minimum number, and maximum number of this data set I just want to make sure I am right. 73,73,78,78,81,87,89,92,93,95 My answers Median=84 Lower quartile=78 Upper quartile=92 Minimum
  78. Algebra =/

    One Number Added To Three Times Another Number Is 24. Five Times The First Number Added To Three Times The Other Number Is 36. FInd The Numbers HELP PLEASE!!!!! :)
  79. MATH

    A number from 16 to 23 is drawn at random. P(a number greater than 18) I think 5/8
  80. math

    What least number must be added to 1056 to get a number exactly divisible by 23?
  81. Math

    Ashton broke apart a number into 30+7. What number did he start with
  82. math

    Two number are in the ratio 7:5 if 2 is subtracted from each of them it becomes 3:2 find the number
  83. 7th grade algebra

    the value in cents of a number of quarters and the same number of nickels
  84. Algebra

    Seven less than one-half a number is 5. how is that written as a equation. If x is the number, then (1/2)x - 7 = 5 0.5X-7=5
  85. math

    what least number must be subtracted from 13601 to get a number exactly divisible by 87?
  86. Quick Question

    Does an Accession number differ from an standard number??*
  87. Math

    One half of a number plus three is eighteen. Find the number
  88. Algebra

    Let X be the number then evaluate the expression for X=-3 the quotient of 12 and the number
  89. math

    One number is 25% of another. The larger number is 12 more than the smaller. What are the numbers?
  90. arithmetic

    What number is 7 more than another number their answer is 23 Find the numbers.
  91. math

    Tell how you could use a number line to determine which of two number is greater
  92. algebra

    Three subtracted from 4 times a number is 17. Find the number.
  93. math

    one-half a number minus 6 is 4. find the number
  94. Mayh

    76 times a number minus 72 equals to -65 less than a number
  95. Math

    Four subtracted from 3 times a number is 29. Find the number
  96. Math

    when 6 is increased by the number of 12 the result is 102 what is the number?
  97. math fractions

    Brent divided 3 1/5 by a number and got 4 1/2. What number did he divide by?
  98. Math

    counting on the number line what is the missing number for 10 22 34 46 58
  99. Math

    Where would 3 1/2,1/3, and -0.5 go on a number line. ( Should the mixed number be turned into 7/2)
  100. 6th Grade Probability

    A number cube is rolled. What is P(3 or an even number)? A. 1/2 B. 2/3 C. 4/2 D. 1/6 The answer is B. 2/3