Math(Please help)

140,953 results, page 21

  1. math

    did you know when you try to find the least commen multiple of 3 numbers you have to divide by two after you get your answer my class (ms.lott in texas) told us that for some reason its doubling the number so always divide by two once you have crossed out the commen numbers ...
  2. AP Statistics

    Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite subject. In this year's class, however, only 21 out of 32 students named math as their favorite class. The instructor decides to construct a confidence interval ...
  3. Statistics

    Your mathematics instructor claims that, over the years, 88% of his students have said that math is their favorite subject. In this year's class, however, only 21 out of 32 students named math as their favorite class. The instructor decides to construct a confidence interval ...
  4. Math

    1. Which number is the resolution of m + 90 = 150? a. 50 b. 60 (my answer) c. 140 d. 240 2. Which number is the solution of n/3 = -12? a. -36 b. -4 (my answer) c. 4 d 36 3. Use mental math to find the solution of 19b = 190. a. 10 b. 11 c. 171 (my answer) d. 208 4. Estimate the...
  5. Math

    Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change. 4.none of the above file:///C:/Users/SCHOOL/Pictures/math.JPG HELP ME UNDERSTAND THIS PLEASE??
  6. psychology

    A researcher predicts that listening to music while solving math problems will make a particular brain area more active. To test this, a research participant has her brain scanned while listening to music and solving math problems, and the brain area of interest has a ...
  7. math

    Cece scored a 78 on her first math test. She scored an 84 on her second test. What is the percent increase, rounded to the nearest tenth, from Cece's first score to her second score?
  8. Math

    I am working on 5th grade math...can you help with the following question? In a roll of 50 dimes, 8 were minted before 1983. What percent of the dimes in the roll were minted before 1983?
  9. History,geography,math lite and tourism

    I am doing grade 11 and i was wondering if you guys can help me found out which jobs i can do if im doing tourism,geography,history and math lite
  10. Math Systematric Trial

    Hey everybody, I really need help solving these math equations. Thank YOU! For helping me! Use Systematic trial to find the value of each variable. a) 5+7c=89 b) 26=5+3e c) 8k-16=200 d)525-6u=339 Write each sentence as an equation. Solve each equation. a) four times a number ...
  11. math

    There are 30 books in a bookcase. The books in the case are either math, science ,or history books. Ten of the books are math books. There are 6 fewer science books than history books. How many science books are in the bookcase??????
  12. math

    in a grade 7 class, 36 students are either members of the math club or science club or both. 10 students are members of both clubs. if 31 students are members of the math club how many are members of the science club?
  13. MATH -BRAIN TEASER- PLEASE HELP

    page # D-76 What Relation Is a Doorstep to a Doormat? Both are stepped on. no You didn't put any parameters on this and I think its a great answer. How bout the relation being a stepson (steps on) I got astearther.... No wait it's A Step Farther eh....?? w/e I need to know ...
  14. Math

    can someone please help me with the following 2 questions and how to do them. i have a math final tomorrow!! 1. Curtis runs 1 mph slower then Mary. After 2 hours of running in opposite directions, they are 30 miles apart. How fast had Curtis been running? a-9mph b-8mph c-6mph ...
  15. math, algebra II

    Can someone explain to me step by step how the book got to this answer i want to understand the steps....thanks Find the inverse, if it exists,for the matirx (*I used the underscore to separate the numbers within the matix) -2_1_3 3_-1_2 -4_2_0 the answer is: -4_6_5 -8_12_13 ...
  16. Math

    Create a Raptor Flowchart that calculates the amount a person would earn over a period of time if his or her salary were five cents the first day, ten cents the second day, and so on doubling each day. Your program should: 1. Request the number of days. 2. Display a table ...
  17. math

    Math word problem: There are 25 students in Mrs. Roberts 3rd grade class. There are 9 more boys than girls in the class. How many boys and girls are in Mrs. Robert's class.
  18. Math

    Several students were surveyed about their favorite class. 26 students chose art 19 English 21 math 16 music 32 science. What fraction of the of the students chose music as their favorite subject.
  19. Math

    Several students were surveyed about their favorite class. 26 students chose art 19 English 21 math 16 music 32 science. What fraction of the of the students chose music as their favorite subject.
  20. algebra

    A textbook store sold a combined total of 205history and math textbooks in a week. The number of history textbooks sold was 87more than the number of math textbooks sold. How many textbooks of each type were sold?
  21. math

    A math contest consists of ten problems.Three points are given for each correct answer. One point is deducted for each incorrect answer. Andy answers all the problems and scores 18 points. How many correct answers does he have?
  22. Math 213 Elementary Math

    20. Think of a number. Add 7. Double the result. Subtract 8. Double the result. Add 12. Divide by 4. Subtract 6. Your answer will be the original number. Explain how this trick works.
  23. math

    How do you multiply decimals If you look at the box up above that says jump, scroll down to the math section. If you select arithmetic you'll see a section on decimals there. That section has a subsection on multiplying them. when you multiply decimals you first have to line ...
  24. Math

    One half the members of the junior high math team are ninth graders. One fourth of the remaining members are eighth graders. One fifth of the rest are seventh graders. There are twelve 6th graders on the team. How many members on the team?
  25. Math

    file:///C:/Users/SCHOOL/Pictures/math.JPG Determine which function has the greater rate of change 1.The rates of change are equal. 2.The graph has a greater rate of change. 3.The table has a greater rate of change.*** 4.none of the above Is this right?
  26. essay

    During my four years in high school, I have taken a lots of classes to prepare for college. As I took ELD classes ( English Language Development ) during my freshman and sophomore year, I realized that I could not meet the college's requirement. So in my senior year, I decided...
  27. math

    First grade math Tell the Rule? Group 1 3 flowers w/4 petals each Group 2 3 flowers w/five petals each in triangle?
  28. Math

    Lisa finished 21 out of her 30 problems in class. What percent of the math problems did Lisa finish in class?
  29. Math

    There are 30 students in a math class. 12 belongs to the computer club and 8 belongs to the photograph club. three belongs to both. how many belongs to neither???
  30. math

    Lesson 14: Equations and Inequalities Unit Test CE 2015 Math 7 A Unit 4: Equations and Inequalities
  31. Marh

    If 1/3 of the math team are 7th graders and 1/4 of the math team are boys, how many are 7th grade boys? 1/4 of 1/3 = 1/12
  32. Math

    Whole Number Math Riddle Clue 1: Double my tens digit and get my ones digit. Clue 2: Double me and I am less than 50
  33. English Grammar

    Which sentence uses proper grammar? I'm bored by math class. Or I'm bored of math class.
  34. math

    9. In Mr.chin's math class there were g girls and b boys. The number pf girls was 5 less than twice the number of boys. What is the value of g in terms of b? this is what I have so far: 2n-5
  35. math

    I need help with Lesson 11: Tools of Geometry Unit Test Essential Math 6 B Unit 2: Tools of Geometry
  36. Math

    Hey I'm working on a math assignment and I'm trying to work out the total amount of rainfall that fell in a certain area. Would this formula be correct? Total rainfall = rainfall mm x duration of storm minutes x area covered And with my rainfall mm I change it out so instead ...
  37. Math

    Find the area of the triangle with the base 1 2/5 yards and height 5/9 yards. The area of the triangle equals half of the product base and height. The area is ____yd^2 (Type whole number or a simplified fraction) I came up with 35/108 did I do the math correctly, and if not ...
  38. Math

    You want to create an open rectangular box from a rectangular box. from a square piece of cardboard 20 inches by 20 inches. You will cut a 3 inch square from each corner. Draw a diagram and find the length of the box. Can someone help me with this diagram thing. I can't ...
  39. Math check my answers

    1. Evaluate. 8d - 10 for d = 4 A.32 B.22*** C.26 D.46 2. write an algebraic expression for the sum of 3 coins and c coins. A.c + 3*** B.c/3 C.3c D.c-3 3. Find the solution of the equation from the given numbers. x - 2 =16: 14, 18, 21, or 12 A.12 B.14 C.18*** D.21 4.use mental ...
  40. math

    In a college, 30 students are taking a math class and 20 students are taking an English class. 5 students are taking both English and math. How many students are taking either English or math.
  41. Math 11

    I need help on this math problem. The width of a certain painting is 5cm less than twice the length. The length of the diagonal distance across the painting is 107cm. Find the length and width. Round your answer to 2 decimal places. How should I set up for this problem? I was ...
  42. Math

    math puzzle: i am less than 3000. all four digits are odd. all four digits are different. the sum of my tens digit and ones digit is 16. i am divisible b 13. who am i? Ans: the thousand digit must be 1, the hundreds digit is 3 or 5. The tens and ones digits are 9,7 or 7, 9. So...
  43. Math

    I do not understand this problem, and I must write an inequality for it too: Nilsa is working on a 60 minute math test. There are 20 questions on the test. If it takes her 20 minutes to complete 12 of the questions, what is the greatest amount of time on average she can spend ...
  44. math

    Need help with math problem. Tom has an unpaid balance of $2,115.75 on his credit card statement at the beginning of June. He made a payment of $85.00 during the month. If the interest rate on Phil's credit card was 11% per month on the unpaid balance, find the finance charge ...
  45. singapore math

    My 3rd grade son get this math problem. It states that John thinks of a 3-digit number. What is his number? Use the clues below to find John's number. Every digit is different. The sum of all thedigits is 19. The difference between the hundreds digit and the ones digit is 6. ...
  46. math

    on her first two math tests, Gracie has an average score of 86. If she got a score of 92 on the first test, what is her score on the second test?
  47. Math 6 grade unit 6 lesson 11 unit test

    Pls need help with The unit 6 math test
  48. Business Math

    Sorry - but I accidentally deleted your post. Homework Help: Business Math Posted by Karla on Monday, March 10, 2014 at 8:27pm. The Soft Step Floor Company purchases carpeting for $5.12 per square yard and marks it up 55% based on the selling price. What is the selling price ...
  49. Math

    Ok I'm on castle learning and for homework this weekend we have to do #1-4 (assignments) that is due on Saturday @ midnight because that the time it will close and I need help on this question. My assignment is: Math 7 (Q1) Assign #2 - Fractions (i already did the others) Qs. ...
  50. math

    What are Base Ten Blocks? Since this is not my area of expertise, I searched Google under the key words "base ten blocks" to get these possible sources: http://www.susancanthony.com/Resources/base10ideas.html http://www.learningbox.com/base10/ From what I can gather, they are ...
  51. Math

    c-d / d-c I know the answer is -1, but what is the math that I have to show to get to that answer? Thanks!
  52. dumb math

    9+9=w w= 18...right? ............18......dumb...math 9+9=18, you dumbos.
  53. math

    please help me with this question What is your fear of math or if no fear, what do you like about it?
  54. Math

    Peter notices that the teenage students who are members of the math club have ages whose product is 611520. How many members does the club have? Extensions: Is it true that whatever number replaces 611520 that this problem has a unique solution? Suppose the club included 12 ...
  55. Math

    James has set up an ordinary annuity to save for his retirement in 19 years. If his monthly payments are $250 and the annuity has an annual interest rate of 7.5%, what will be the value of the annuity when he retires? I am studying for my math final and I do not remember how ...
  56. Math

    Mrs. Chans math class contributed 2 dollars and $1 coins to an earthquake relief fund. the number of $1 coins contributed was 8 less than 5 times the number of $2 coins contributed. if class raised total of 160 bucks, how many coins of each type was collected? it says i have ...
  57. math

    Joe puts 5 books in his backpack as he leaves for school. He has 2 math books, 1 science book, and 2 history books. What is the probability that he will grab his science book out of his backpack without looking? I think 1/5 Jacquie has 4 sweaters that go with her new jeans. ...
  58. Math

    Gray bought two plots of land for a total of 120000 on the first plot she made a profit of 15% on the second plot she made 10% profit her total profit 5500, how much did she pay for each piece of land? (And please show the full procedure of the math even the rough work as well...
  59. MATH

    Joe puts 5 books in his backpack as he leaves for school. He has 2 math books, 1 science book, and 2 history books. What is the probability that he will grab his science book out of his backpack without looking? I think 1/5 Jacquie has 4 sweaters that go with her new jeans. ...
  60. math

    I don't get this I've been absent for 3 weeks On a math quiz Mary score 3 points for each of the 12 multiple-choice question she answered correctly and five points for each of the eight free response question she answered correctly. What was the total number of points Mary ...
  61. Statistics

    A number of grade school students were asked about their perceived math ability and the results are in the table below. Below Average = BA Average = A Above Average = AV BA A AV Girls 61 54 21 Boys 43 61 42 Test at the 0.01 level if there is a difference between girls and boys...
  62. Math !!!!!!!!

    Ok i have a Summer Math Assignment & i really need help on this qs. it's part B of the qs. so i'll show you the whole thing Part 2. Extended Reponse Qs. (2 points each) Answer each qs.. Show all Work Qs. 5 Adrian correctly solved two equations in math class. Part A: What value...
  63. Math Symbols

    PLEASE ANSWER MY LAST POST (MATH SYMBOLS) PLEASE I REALLY NEED SYMBOLS
  64. Math PLEASE HELP

    1.Which pair of ratios can form a true proportion? A 7/4, 21/12 (I picked this) B 6/3, 5/6 C 7/10, 6/7 D 3/5 7/12 2. Solve the proportion g/56=2/8 A g=14 B g=16 (I picked this) C g=13 D g=50 Solve the following Proportion 2/9=y/27 A y=6 (I picked this) B y=18 C y=27 D y=36 ...
  65. math,correction plz

    can someone correct my math...thanks... Perform the indicated multiplication. Then simplify each radical expression. Problem#4 radical(13) times radical (5) My answer: radical (15) Problem #28 radical (7) (2radical(3)+3radical(7)) MY answer: 2radical(21) + 21 No on first one. ...
  66. Math

    Three pictures hang side by side on a wall. What is the total area of the wall that the pictures cover? Length is 10 1/2 inches, 10 1/2 inches, 10 1/2 inches Width 14 2/3 inches Would I need to add 10 1/2 plus 10 1/2 plus 10 1/2 and then multiply by 14 2/3 inches? Please ...
  67. Math (Algebra II)

    I'm trying to finish up my summer math packet, and I'm almost done, but I'm having trouble figuring out this one: "Divide and simplify these expressions." (3x^4 - 2x^3 + 16x - 192) / (x^2 - 8) so, that's 3x to the 4th, minus 2x cubed, plus 16x, minus 192 ---> all divided by...
  68. Math

    Me and Lisa have the same math homework. And I was wondering what would be the answer to this question and the steps provided to get this questions answer? A pre-election survey showed that 2 out of every 3 eligible voters would cast ballots in the county election. At this ...
  69. MATHS

    A travel agent arranged a payment plan for a client. It required a down payment of $150.00 and 12 monthly payments of $642.00. What was the total cost of the plan? 2. translate into math expression and solve. Some number divided by negative four is four. 3.The sume of three ...
  70. stats

    SAT math scores approx. follow a normal distribution, with mean 500 and standard deviation 100. What % of students should have an SAT math score above 500? I think I use mean (500) + z-score * SD (100), but I do not know how to get the z-score?
  71. Math help pls!!!

    the sum of the ages of petra and her mother 44. her mother is 8 years more than twice as old as petra. how old are petra and her mother. this dont make sense so pls help me on this math question help me asap pls and ty
  72. Math: Mean, Median, Mode, Range & Finding the devi

    What is deviation? And what is the definition of frequency distribution & how would I solve a problem in 8th grade math with this problem...My child is asking about this problem she has in an 8th grade book. Given the following numbers 2,2,3,6,1,9,4,2,5,7,6,8,6, What is the ...
  73. English

    1. My math exam is tomorrow. 2. Tomorrow is my math exam. 3. Tomorrow I have a math exam. 4. I take a math exam tomorrow. (Are all the same and grammatical?) 5. What did you do over the summer vacation? 6. What did you do during the summer vacation? 7. What did you do on the ...
  74. Math

    1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to the nearest whole ...
  75. Math

    Im working on "Finding the Area and Circumference of a circle" I have a question. Is the circumference half of the area? I was looking at my brothers math book, this is what it shows. C=πr2≈ 2(3.14)(4)≈ 25.1 A=πr^2≈ 3.14(4^2)≈ 50.2 cm^2. Thanks.
  76. MATH PLEASE HELP

    1) -5g-6 for g = -2 2) Write an algebraic expression for the sum of 3 Coins and c Coins 3) What Value of x is a solution to the equation? x-2 = 16 4) use mental math to solve the equation. z/-12 = -5 5) estimate the solution of the equation x-8.1 = 5.3 to the nearest whole ...
  77. MATH

    IF JACK AND JILL ARE COMPARING RESULTS OF A MATH TEST AND jACK HAD 40 CORRECT ANSWERS AND JILL HAD 50 CORRECT ANS AND THERE WERE 32 QUESTIONS THEY BOTH GOT RIGHT AND 6 THEY BOTH GOT WRONG. HOW DO I FIND THE NUMBER OF QUESTIONS ON THE TEST?
  78. Math (7th grade)

    I have a math question that I do not really understand how to answer is there someone who can walk me through it? In Pinecrest middle school there are 58 6th graders 76 7th graders, and 38 8th graders. The counsel is made up of 35 students who are chosen to represent all three...
  79. Math

    Mr. Lin baked banana bread for a bake sale to raise money for the math team. He said that he added a spoonful of walnuts for each of the students in his three classes, and that he added more than 250 walnuts. He used the inequality 16w + 24w + 10w > 250 to represent the ...
  80. Math

    Lee Holmes deposited $16,600 in a new savings account at 9% interest compounded semiannually. At the beginning of year 4, Lee deposits an additional $41,600 at 9% interest compounded semiannually. At the end of year 6, what is the balance in Lee’s account? I have tried and I...
  81. math

    19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use ...
  82. math-followup

    A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. Picking randomly in the dark, how many shoes must I pick before for sure that there is one matching pair in red or blue? Ms Sue answered 4. Request for explanation please. math - Ms. Sue, Tuesday, January 29, ...
  83. math help please

    19. Mr. Green teaches band, choir, and math. This year, he has 57 students that take at least one of his classes. He teaches band to 25 students. There are 48 students who take either band or choir or both. There are 9 students who take both math and choir with Mr. Green. Use ...
  84. math

    suppose a license plate for a car has 4 letters followed by 1 number and 3 more letters. The letters and numbers are chosen randomly. a. how many license plates are possible? b. compare the probability that a license plate spells math4you with the probability that the first 4 ...
  85. Math 222

    222 - Steve, Wednesday, October 22, 2014 at 12:02am I assume you want to factor the expressions? a^4b + a^2b^3 = a^2b(a^2+b^2) z^2 + 18z + 45 = (z+3)(z+15) •Math 222 - Monica, Wednesday, October 22, 2014 at 12:10am Thank you Steve and can you please explain how you got both ...
  86. Pre algebra

    How do I complete each ORDERED PAIR solution to the given equation? y=-x+9;(4),(9),(0) I looked up math ordered pairs at www.google.com, and these are the results. There may be a site in here with an explanation to help you. http://www.google.com/search?q=math+ordered+pairs&...
  87. Math

    math word problem a building 240ft tall casts a 100 foot long shadow. If a person stands at the end of the shadow and looks up to the top of the building, what is the angle of the persons eyes to the top of the building(to the nearest hundredth of a degree)?(assume the persons...
  88. Math (money)

    HIII!!! I NEED HELP ON MATH! PLEASE HELP! Melissa has spent $17 so far on gifts. The additional amount she will spend will be more than $8. What are the possible total amount she will spent? Use c for the total amount (in dollars) she will spend.
  89. Math

    In a math contest of 10 problems, 5 points was given for each correct answer and 2 points was deducted for each incorrect answer. If Nancy did all 10 problems ad scored 29 points, how many correct answers did she have?
  90. Math

    I have more math problems that I will to figure out. 2) 3.1 divided by 4 and 6.4 divided by 9 Estimate 3.1 which would be 3 Estimate 6.4 which would be 6 3 divided by 4 and 6 divided by 9 This one I am totally confused about. The only other way I can think is 32 divided by 4=8...
  91. math

    describe general rule for which fraction that have decimal forms that terminate and which have decimals that repeat and list prime factorizations for each: 1/2 , 1/3, 1/4, 1/5,1/6,1/7,1/8,1/9,1/10,1/11,1/12 how do I do these problems? I searched Google under the key words "...
  92. math***help plz***

    please help me with math. A car travels 132 miles using 4 gallons of gas.At that rate,how far can the car travel using 7 gallons of gas? A.231 miles B.264 miles C.134 miles D.1,260 miles
  93. Math

    1.how many different permutations can you make with the letters in the word s e v e n t e e n ? 2.a teacher has a set of 12 probelms to use on a math exam. the teacher makes different versions of the exam by putting 10 questions on each exam. how many different exams can the ...
  94. math

    In my math book i got a question that said 1/7 times 1/7. I got answer of 2 if my answer is not right can you show me how to do the problem.If my answer is correct still show me how to do the problem
  95. math 115

    1. sabrina has the following math quiz scores. 19, 24, 25, 17, 13, & 18. find her mean score, to the nearest tenth if necessary.= 13 is this correct? 2. eleven applications for a certain position had the following ages. 32, 33 ,25, 36, 48, 51, 28, 23, 54, 52, 45. what was the ...
  96. math project...PLEASE HELP...

    I am doing a math project on Leonardo Fibonacci, the creator of the Fibonacci's Sequence. I was wondering if someone could please tell me a website where I could get more information about his marriage. can someone help me? http://www.google.com/search?as_q=Fibonacci+biography...
  97. Math

    how to explain to my child this math problem : davia draws a shape with 5 sides .Two sides are each 5 inches long . Two other sides are 4 inches long.The perimeter of the shape is 27 inches . What is the length of the fifth side?
  98. math-old

    A bag got mix up 6 pairs of shoes – 2 red, 2 blue, and 2 purple. Picking randomly, how many shoes must I pick before for sure that there is one matching pair in red or blue? Ms Sue answered 4. Request for explanation please. math - Ms. Sue, Tuesday, January 29, 2013 at 10:...
  99. math/algebra

    17 simplify 3/(x-5) + 1/ 1 - 4/(x-5) The non-use of grouping symbols makes this sentence without meaning. The non-use of grouping symbols makes this sentence without meaning. 3/x-5 +1 / 1 - 4/x-5 = I never know how to write the problems so someone can understnad what I mean, ...
  100. Math

    I have this hard question in math. can someone help me find out the riddle? I start with 1 bacteria. Every hour it doubles. How many hours until there are 1,000,000 bacteria? Can you make a function that describes this situation? What if I double it? I start with 2 glasses ...
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