1. math

    Top player's scoring average changes from 20 points per game to 24 points per game. What is the percentage of increase. 1:20% 2:16.7% I think 2??
  2. Physical Science

    If student A measures a laptop computer to be 37.2 cm long, and student B measures 36.7 cm, what is the percentage error?
  3. ANT 101

    Matrilineality is the principle of descent in what percentage of world societies? 5 percent 15 percent 25 percent 35 percent
  4. Math

    A frame around a photo is 5 cm wide. The photograph is 20 cm long and 10 cm wide. What percentage of the entire area is the frame.
  5. percentage

    If I put $5,000 in a CD for a miniumum of 3 years, the bank will offer 3.25% interest. How much interest will I earn after 6 years?
  6. hellppp

    an assortment of coins contains 20 pennies, 2 nickels and 6 dimes. what percentage of the coins are nickels? show how is solved ?????????
  7. math

    What percentage of 13,000.00 is 8,000.00
  8. algebra

    this is not algebra. I just need to know how to find a percentage of something.
  9. physics

    is it possible to a have a percentage difference of zero in physics
  10. Finance

    4.A thirty year US treasury bond has a 4.0 percent interest rate.In contrast, a ten year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect
  11. Chemistry 2

    The mechanism for the reaction of nitrogen dioxide with carbon monoxide to form nitric oxide and carbon dioxide is thought to be the following. NO2 + NO2 NO3 + NO Slow NO3 + CO NO2 + CO2 Fast What would be the overall balanced equation to this reaction?
  12. Physics

    Explain Why the pressure of a gas in a nitrogen container falls continuously when the gas is continuously taken away while the pressure of a gas in a chlorine container remains constant until nearly all the gas is withdrawn
  13. Chemistry

    Gold is alloyed with other metals to increase its hardness in making jewelry. Consider a piece of gold jewelry that weighs 9.85 g and has a colume of 0.675 cm cubed. The jewelry contains only gold and silver, which have densities of 19.3 g/cm cubed and
  14. Chemistry

    To a beaker containing 200 mL of a solution of CuSO4 was added 10.0g of magnesium metal. When the reaction was complete, a mixture of Mg and Cu having a mass of 14.50g remained in the beaker. Calculate the molarity of the original CuSO4 solution. I
  15. chemistry

    which metal react most vigorously? metals aluminum, copper, magnesium, lead, tin, zinc 1. which metal will react most quickly? 2. which will take the longest time to react? 3. which will react most vigorously and least vigorously? 4. list metals from order
  16. algebra

    Supposed that an individual has a body fat percentage of 16.4% and weighs 188. How many pounds of his weight is made up of fat? Round to nearest tenth. 188÷16.4 11.46 11.5
  17. math help me out please

    There are two distinct natural numbers. Each is first increased by 10 then by same percentage as each was increased for the first time. Each number finally results in 72 Find the difference between the numbers. How to solve in easy way please help me
  18. math

    Mr. hernandez had to interview a total of 63 households in his assignment. H has already finished 28. what percentage of the households in his assignments has he finished? (round your answer to the nearest tenth of a percent.)
  19. Maths

    A jug contained 780 ml of mil. Mrs Li poured 221 ml of the milk into a glass and 130 ml into a cup. What percentage of milk was left in the jug?
  20. Physics

    a) The x-coordinate of an electron is measured with an uncertainty of 0.20 mm. What is the xcomponent of the electron’s velocity, vx, if the minimum percentage uncertainty in a simultaneous measurement of vx is 1.0%. b) Repeat part (a) for a proton.
  21. Economics

    Property taxes, which are calculated as a percentage of the value of a home, are an example of a. the benefits- received principle b. a regressive tax c. the ability to pay principle d. a proportional tax
  22. Percent Math Fasted Way to Solve

    The BMR for a man in his 20s is about 1,700 calories per day. If 204 of those calories should come from protein, about what percentage of his diet should come from protein?
  23. Chemistry

    A .500g unknown sample is titrated with 40mL of .187M KMno4 by the following reaction: 5Fe{2+} + MnO4{-1} + 8H{+1} -> 5Fe{3+} + Mn{2+} + 4H2O. What is the percentage of iron in the following sample
  24. chemistry

    2gm of a mixture of na2co3 and nahco3 on heating to a constant weight gave 224ml of co2 stp. Calculate the percentage of na2co3 in the mixture?
  25. Chemistry

    8.5g of sample of iron required just 75cm3 of 3.00M HCl to dissolve it and give a neutral solution.Calculate the percentage purity of the sample of iron.
  26. Maths

    The selling price of a pencil box was $4. Chee Keong bought the pencil box and paid $4.28 including GST. What percentage of milk was left?
  27. math

    a baseball team has already played 37 games and won 21 games. The season has a total of 63 games. How many more games do they have to win to keepthe same winning percentage? (answer should be a whole number)
  28. bio

    The frequency of an allele ‘a’ in a natural population is 0.49. What percentage of the population is homozygous for this allele? Calculate the exact value; do not round up or give an estimate. Answer in units of %.
  29. economics today

    Suppose the economy has been experiencing zero inflation and five percent unemployment for several years. The government decides to lower the unemployment percentage by generating some inflation. You need to do the following:
  30. math

    anis bought 809 dragon fruits at rm5 each. 5 of them are rotten.if she sold all the remaining dragon fruits at a price rm6 each,what her percentage profit?
  31. statistics

    Suppose that IQ scores have a bell-shaped distribution with a mean of 95 95 and a standard deviation of 18 18 . Using the empirical rule, what percentage of IQ scores are at least 149 149 ? Please do not round your answer.
  32. Math

    Todd's wieght went from 220 lbs to 190 lbs and Cassidy's wighte went from 150 lbs t?o 135 lbs. Who had the greater percentage of weight loss
  33. Biology

    If there is crossing over between two gene loci A and C occurs in 20% of the tetrads and between C and B in 10% of an individual of genotype ACB/acb, what would be the percentage of gametes of double cross over types (AcB/aCb) ?
  34. math (check answer plz)

    type of cookies/Adults/children/total chocolate /5 /10 / ----------------------------------------------------------------------------------- Peanut /8 /6 / ------------------------------------------------------------------------------------ oatmeal /7 /4 /
  35. Chemistry

    (a) The total mass of carbon contained in fossil fuels that was burned in the world from 1750 to 2000 was estimated to be 2.9 x E14 kg C. The amound of carbon released as carbon dioxide from agricultural expansion and deforestation over this period is
  36. Chemistry (Check)

    Q: Number of unpaired electrons in the nitrogen atom. A: 1s^2 2s^2 2p^6. 3 unpaired electrons in the p orbital Q: Number of 4d orbitals. A: 10 Q: Maximum number of electrons that can have n=3 and l=1. A: 1s^2 2s^2 2p^6 3s^2 3p^6. 2 electrons
  37. graphs

    Which of the following questions will most likely be answered by displaying data on a line graph? A) which plant showed the fastest growth during the experiment? B) which type of pet do the most students have? C) what percentage of the class likes
  38. graphs

    Which of the following questions will most likely be answered by displaying data on a line graph? A) which plant showed the fastest growth during the experiment? B) which type of pet do the most students have? C) what percentage of the class likes
  39. Finance

    Homework Help: Finance Posted by Sally on Monday, November 23, 2015 at 8:02pm. The answer given by Finance - Anonymous , Monday, November 23, 2015 at 8:12pm Add the tax to the "before tax" to get the answer was not helpful. I am hoping someone can give me
  40. college Chemistry

    Decide if the molecule has a dipole moment, (if the molecule is polar) as follows: a) dipole (polar molecule) b) no dipole (non-polar molecule) c) ionic (not a molecule) d) super covalent e) none of the above 11.) CsF 12.) nitrogen 13.) Methane 14.)
  41. chem

    (CH3)N2H2(l) + 2N204(g) = 3N2(g) + 4H2O(l) + 2CO2(g). consider the reaction b2n 150g of liquid (CH3)N2H2 & 80L of N2O4 at 27 degree celcius & a pressure of 2 atm. The gases produced are collected at 27 degree celsius in an evacuated 250L. Calculate: a)
  42. Chemistry --really need help!

    I am really struggling with these problems!! A reaction mixture that consisted of 0.20 mol N2 and 0.20 mol H2 was introduced into a 25.0 L reactor and heated. At equilibrium, 5.0% of the nitrogen gas has reacted. What is the value of the equilibrium
  43. chemistry

    Gaseous hydrazine reacts with a gas X to form the gases nitrogen and HX by way of the following reaction: NH (g)+2X (g)=N (g)+4HX(g) The enthalpy change for Reaction 1 is −1180 kJ mol−1. Sketch or try and layout a fully labelled diagram showing
  44. Principles of Finance

    .A thirty year US treasury bond has a 4.0 percent interest rate.In contrast, a ten year Treasury bond has an interest rate of 2.5 percent. A maturity risk premium is estimated to be 0.2 percentage points for the longer maturity bond. Investors expect
  45. P-Chemistry

    A closed vessel of volume 2.50 dm3 contains 100g of nitrogen (N2) and 100g of carbon dioxide (CO2) at 25 C. What are the partial pressures and mole fractions of each gas? Can you check my answers.Thank you. I got Partial Pressure for N2=34.95 atm CO2=22.24
  46. Economics

    Suppose that 20 workers were required in 2010 to produce 120,000 bushels of wheat on a 1,000-acre farm. a. What is the average output per acre? (?) bushels per acre What is the average output per worker? (?) bushels per worker b. If in 2020 only 16 workers
  47. Physical Science

    The density of sea water is slightly higher than that of fresh water. The higher density is due to the fact that sea water contains salts such as sodium choride and magnesium chloride. Suppose you have a container that holds 5.00 kg of freshwater, which
  48. chemistry

    Calculate the resulting pressure if 4.50 liters of nitrogen at 35 degrees Celsius and 790 torr and 3.7 liters of oxygen at 15 degrees Celsius and 750 torr are pumped into a 1.00 liters container at 25 degrees celsius. Assume ideal gas behavior.
  49. math

    The population mean length of a hospital stay for surgery is 5.5 days and the standard deviation is 1.9 days. What percentage of patients are hospitalized for 3.9 days or less? I've read the book and looked at the explanation that it gives and it's not
  50. General Chemistry

    Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0290 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate?What percentage of the Ca2 (aq) can be separated from the Ag (aq) by selective
  51. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 1.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  52. Maths

    A shopkeeper bought 160 eggs for 320 naira 40 eggs were cracked he sold the remaining for 480 naira find her profit or loss percentage. ︶︿︶
  53. statistics

    A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately normal with a mean of 31 and a standard deviation of 5. What percentage of sample had scores 1) Below 20 2) Above 40 3) Above 20
  54. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 1.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  55. Physics

    two cars of equal mass with equal speeds traveling perpendicular to one another collide completely in elastically. what percentage of the cars' total energy is lost in the collision?
  56. Math

    Jacob mixes the letters J,K,L,J,K,M,N and P throughly. Without looking Terry draws one letter. Expressed as a fraction, decimal and percentage what is the probability the K will NOT be the letter terry selects A. 1/4,0.25,25% B.3/4,0.75,75% C. 4/3,1.33%,
  57. math

    Suppose the scores of students on an exam are normally distributed with a mean of 393 and a standard deviation of 57. According to the empirical rule, what percentage of students scored between 279 and 507 on the exam
  58. statistics

    You have a score on a national entrance exam of 95. What percentage of people in the population have a score that is lower than yours? (Assume the population mean is 75 and the standard deviation is 10. Use the table I passed out in class.)
  59. business

    what is nominal value,face value, market alue,rate of dividend,annual dividend,rate of income, percentage yield, Demat, bullish, bearish. can someone answer this.
  60. chem

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 3.10 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  61. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 3.30 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  62. math

    kate davidson signed a simple discount note for $9000. the discount rate is 5%, and the term of the note is 18 months. what is the annual percentage yield (apy)?
  63. Chemistry

    What is the minimum percentage of gas (C2H2) formed when 2.66g of calcium carbide (CaC2) reacts completely with 50g water? CaC2+2H2O -> C2H2+ Ca(OH)2
  64. Elements of programming

    prompt for and input a saleswoman's sale for the month(in cedi)and her commission rate. (as percentage). Output her commission for the month. Run it with flowchart using raptor
  65. statistics

    1) A scale measuring prejudice has been administered to a large sample of respondents. The distribution of scores is approximately normal with a mean of 31 and a standard deviation of 5. What percentage of sample had scores below 20?
  66. chemistry

    3CuCl2-2H2O + 2AL--> 3Cu +2AlCl3+6H2O what is the thepretical yield or copper? then what is the limiting reagent and excess reagent? whats the percentage yield?
  67. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.00-g sample is burned, and 2.50 g of CO2(g) is produced. What is the mass percentage of the table salt in the mixture
  68. math

    Kate Davidson signed a simple discount note for $9,000. The discount rate is 5%, and the term of the note is 18 months. What is the annual percentage yield (APY)?
  69. Cultural Anthrolpogy

    Anthropological research has demonstrated that supernatural beings and forces exist in what percentage of the world's cultures? A. 50 percent B. 80 percent C. 95 percent D. 100 percent My answer: C
  70. chemistry

    Calculate the theoretical percentage of water in gypsum, rounded to the nearest whole number %. (calcium sulfate dihydrate; CaSO4 ° 2H2O; Ca = 40 g/mol, S= 32 g/mol; O= 16 g/mol; H= 1 g/mol).
  71. Chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  72. Math/dilution

    A powder concentrate contains 2% w/w of active ingredient. What would be the percentage concentration (w/v) of the resultant solution after a 5-g packet of powder is dissolved in enough water to make 1 quart of solution?
  73. chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 4.00-g sample is burned, and 3.30 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
  74. Chemistry

    Table salt, NaCl(s), and sugar, C12H22O11(s), are accidentally mixed. A 5.50-g sample is burned, and 1.80 g of CO2(g) is produced. What is the mass percentage of the table salt in the mixture?
  75. chemistry

    what mass of Nacl and H2o are present in 160.0g of 12 mass percentage solution of Nacl?
  76. chemistry

    what is the percentage yield of c2h2 with 50g of cac2 reacts with water to yield 13.5g of c2h2
  77. Chemistry

    A solution contains 153g Na3PO4 and 415g H2O. What is the percentage concentration of Na3PO4 in this solution
  78. Maths

    A theatre has 500 seats.385 are occupied.write down the percentage of seats that are occupied
  79. Statistic

    At one college, GPA's are normally distributed with a mean of 2.7 and a standard deviation of 0.5. What percentage of students at the college have a GPA between 2.2 and 3.2?
  80. psychology

    In a normal distribution, what percentage of scores will fall between one standard deviation below the mean and one standard deviation above the mean?
  81. Mathematics

    A dealer gains a selling price of 4 watches by selling 20 watches. What is the percentage of profit?
  82. math

    if out of two numbers, one number is increased by 10% and other number by 20%,find percentage increase in the product of the two numbers
  83. percentage

    100 employees leave a business that originally has 2000. What is the % of original employees did not leave? Is it 5%
  84. Math

    A customer paid $247.13 in interest on a loan of $950.50. What is the percentage of interest paid?
  85. Math

    There was 30 students in the class 24 of these studen pass the test what percentage of these students passed their test
  86. science

    how do u calulate the percentage composition of NO2 and mgcl2 You don't. There is no NO2 in MgCl2 which should be obvious.
  87. Hawaiian Farming

    What is the percentage of land used by farmers compared to farming land avalible in Hawaii? Thanks!
  88. math

    If Someone estimatesthat their book bag weighs 8.5 pounds and actually weighs 11 pounds what is the percentage error
  89. percentage

    paul made 11 out of 12 shots he took at hockey practice yesterday. What percent of his shots did he made
  90. Math

    if i have read 150 pages of a 240 page book, what percentage of the book have I read?
  91. basic math

    In one class, there are 15 boys and 30 girls. Approximately what percentage of the students in the class are boys?
  92. math

    If Deborah ate five pieces of a pizza that was cut into 16 pieces, what percentage of the pizza did she eat?
  93. math

    there are 100 apples in a bag and 43 are red and the rest are green, what percentage of the apples are green
  94. Maths

    If I have the mean and standard deviation of data how do I work out the percentage of data within 1,2,and 3 standard deviations of the mean? :) any help would be much appreciated thanks
  95. math

    The price of a car has been reduced from $11,000 to $8,690. What is the percentage decrease of the price of the car?
  96. math

    In a school of 960 pupil,48 were absent on a day. Calculate the percentage absent that day?
  97. math

    A photograph has been enlarged to three times its previous size. By what percentage has the size of the photograph increased?
  98. Algebra

    Share your answer: there are 80 students in park 12 playing tennis what percentage is not playing tennis?
  99. physics

    A roof rises 1.7 feet vertically and 13.3 feet horizontally. What is the grade of the roof in percentage
  100. MATH

    A photograph has been enlarged to three times its previous size. By what percentage has the size of the photograph increased?