Critical Thinking/Math

145,931 results, page 71

  1. math

    can somebody help me with this math problem? I don't understand what i'm supposed to do, so a few links to tutorials or an explanation would be really helpful! "sam recorded how many pounds he gained each month for four months and recorded the results as 1/8, 0.75, 2/5, 5/6. ...

    Anna mixes the letters S, E, L, E, C, T, E and D thoroughly, without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will not be the letter mary selects A 3/8 0.375 37.5% B 8/5 1.6 16% C 5/8 0.625 62.5% D 8/3 2....
  3. being a math tutor

    Right now in my geometry class, I have an A+, but friend is failing that class. I offered to be her math tutor, to possibly meet in the library after school 3 days a week. Does anybody have any ideas on how to make our study sessions more productive (I haven't started yet -- ...
  4. Math repost for Justin

    Math - justin, Wednesday, October 10, 2007 at 9:04pm what is the answer to the dot thing were you have three rows of there dots and you have to connect them all with four straight lines and no diagnals plez write back befor october 13 2007
  5. math

    Good 1 Steve so I sux at math but your here :) Heres another: X = [students playing football], Y = [students playing baseball], and Z = [students playing rugby]. Draw a Venn diagram of Z – (X U Y), and write a sentence describing what the set represents:
  6. Math

    The math question is "in a piggy bank there is a total of $15.75. If the ratio of dimes to quarters is 5:7, find the total amount in quarters. My question is, what formula would I use to solve this?
  7. 3 rd math

    no i'm not try to cheat. i just want to understand how do you round the #132 to the nearest million . if 2 in million place should i round up or keep it same value. i just want to able to understand . on my kids math practic only . it's not an actual homework .
  8. math

    There are 28 students in Ms. Rainbow's Math class. The number of girls is 10 less than the number of boys. If there are b boys in the class, write an equation to correctly model the situation.
  9. Math (7th grade math)

    A real estate agent earns a weekly salary of $200. This week, the agent sold a home for $120,000 and was paid a 5.5% commission. Find the agent’s earnings for the week. A) $661.10 B) $6,611 C) $6,800 D) $860
  10. Grade 12 Data Management math

    I'm doing math through correspondence so material is not explained very well. I would appreciate if someone could explain this to me. This lesson is review of set theory and first degree equations. Indicate whether each of the following statements is true or false. If the ...
  11. Math

    Five students took a math test. The average score was 82. Four of the students' scores were 76, 85, 90, and 64. What was the fifth student's score?
  12. Math

    Im working on a math question and the answer is 2hr and 24min. I am getting 2.4 with my calculations how do i take 2.4 and get 2hr and 24min.???
  13. Math

    There are 30 sultry dents in the class. 20% of the students received an A on the last math test. How many students received an A?
  14. math work sheet

    I do not get my math !!!!!!! I mean when it says like a number equals blank percent of a number 13 equals % of 16 what do i do
  15. math

    Math out of box 1 2 3 4 5 this is called steps(s) 5 9 13 17 21 this is called tiles(t) we know you are adding 4, but what is the rule such as (S X S + 4-1-5)I know its not right so help then right the rule for this.
  16. exponential functions in math

    my daughter needs some help studying for a unit test using exponential functions in math
  17. math

    what if there is no common denomintor, or is there a such thing as no common denomintor, this is 5th grade math.plz help
  18. math

    what is the effective rate formula? There are numerous effective rate formulas in math. You will need to be more specific.
  19. Math

    Math.. find limit help? Find the given limit. (x→ 1)lim: (square root x-1) + 1
  20. Math

    In a row of 15 mugs three are blue and the rest are red what fraction of the mugs are blue in math
  21. math

    How do I make a math factor tree using the number 115 and make it look like a tree for real?
  22. algebra/common math

    how do I solve this? I know it's common math, but I cannot remember how! -4x> 1/11 I think I multiply both sides by 11, but..... I can't remember how!
  23. Math

    Hey umm what do you learn in the 5th grade math??? This is for my brother cause he is going to the 5th grade.
  24. math 163(discrete math)

    how many different functions are there from a set with 10 elements to a set with the following numbers of elements: a)2 b)3 c)4 d)5
  25. f math

    please what is the answer to this f math question......1-cos^2X=0 for 0°less dan equals X..then X less dan equals 270
  26. Math

    First student bought art, math and history books for $72. a+m+h=72 Second student bought art, chemistry and history books for $80. a+c+h=80 Third student bought chemistry, math and history books for $61. c+m+h=61 Fourth student bought art, math and chemistry books for $57. a+m...
  27. math test

    ok this past week i was sick 4 2 days and i need 2 finish this math test by today!!!! and i didn't get 2 learn anything like u know, not practive soo plz anwser these questions: 1.what is a concave polygon 2.what are concentric cicles? 3. what does this mean: a polygon that is...
  28. Math

    If Ms. Herbert gives her class a English quiz every 6 days any math quiz every 10 days when is the first day there will be a math and English quiz on the same day
  29. English Grade 9 Essay Check/SUggestions For improv

    Hi, so my name is Katherine, and I am in grade 9. Hello Ms.Fowlks. The three classes I am taking are spanish, english, and oklahoma history. Sorry, I have to give a bit of information so my teacher knows I wrote this and it is not plagiarized. :D Anyways, can you give any ...
  30. math

    I need someone to help explain how this math problem works. I am not sure how to convert this fraction below to arrive at 100.8 degress. 7/25 .360 degrees=100.8 degrees How did this answer of 100.8 degrees come about in this equation?
  31. 6th grade math

    on a farm there is 18 pigs and chickens (all together). There are 52 legs, how many pigs and how many chickens are there? Show how you got your answer. i know there are 10 chickens and 8 pigs, but i did that through trial and error, can you help me figure out the right math to...
  32. Math

    Yep, another math question! The slope of a line passing through H ( -2, 5) is -3/4, which ordered pair represents a point on the line? A: (6, -1) B:(2, 8) C: (-5, 1) D:(1, 1) No graph was with the question btw. I tried making a coordinate plane myself and making lines to see ...
  33. SAT Math?

    I'm working on a couple of SAT math programs for school, and I have trouble figuring some out. 1. Joe is 3 years younger than Kate. If n represents Nora's age now, what was Kevin's age 4 years ago, in terms of n? A. N + 7 B. N + 1 C. N - 1 D. N - 4 E. N - 7 2. If (x + y)^2 - (...
  34. 4th grade math

    I too am trying to help my son with his math homework. Problem is: at a Pokemon Tournament there are 6 players. Each player counted his cards at the beginning: These are the landmarks for the group: Minimum: 8, Maximum: 16, Moes: 13, Median: 14. Lisrt the numbers of cards each...
  35. math

    How do you rotate an object in a graph?? It depends on what point you are rotating the plot. The math is somewhat advanced, so I don't know your level. i just need to rotate 180 and 90.... Ok, rotating about the origin. For ninety degrees, counter clockwise, the old x...
  36. math

    on a tv game show, the contestant is asked to select a door and then is rewrded with the prize behind the door selected. if the doors can be selected with equal probability, what is the expected value of the selection if the three doors have behind them a 40 thousand dollar ...
  37. math

    Dr needs 500 needles priced at 2.60 per hundred. If he pays within 10 days, she receives a 2% discount, sales tax 5.5%. What amount would you pay with the discount? My math 2.60 x 500 needles = $13.00 $13.00 x 5.5% = 72cents 13.00 + .72 = $13.72 $13.72 - 2% = 27cents 13.72 - ....
  38. Math

    LOL I can't figure this out. It should be easy it's been years since I've been in school and my son has no idea. The product of two numbers is 63. Their sum is 16. What are the numbers? Thanks for the help! Let's factor 63. 1 x 63; 3 x 21; 7 x 9. Which of those pairs of ...
  39. math help

    could some one please explain to me reciprocal how to find the reciprocal my math home work says find the reciprocal of (-1/8)(13/2)(4) reciprocal you change over so is the -1/8 -8/1 or would it be 8/1 13/2 would be 2/13 4 would be 4/1 then 1/4 then i would multiply all ...
  40. Math

  41. math

    compound interest compute the compound interest on 1)Rs 1500 for 2years at 6% per annum. please send answer This site explains compound interest and shows the formula for solving your problem.
  42. Math

    Please help me I am terrible at math, and this is my last class before graduation.. 1. Find the value of X... x/6-x/8=1 2. Find the value of X...x/x-2-x+1/x=8/x^2-2x 3. Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 4.Find the value of X...2/5=x-2/20 find the lowest common ...
  43. Math (Function differentiable)

    Determine whether the function is differentiable at x=2 x^2+1 for x<(or equal to) 2 4x-3 for x>2 I did the math for the limits of both equations and they both approach to 4. So that means they are differentiable right?
  44. Math is this correct

    There are 30 students in math class. Twelve belong to the photography club. Three belong to both clubs. How many belong to neither club? Is it 12?
  45. math

    Can you make, using any math symbols, make four 8s equal 5?
  46. math factors

    I need all math factors for 2,006 2006 = 2*17*59 :)
  47. math pls help Ms Sue

    could you pls check my math 6< s +7 -1<s -8.7<y + (-12.4) 21.1<y x + 17 > 10 -7 > x 11 > j + (-19) 30>j 24.3 > g- (-14.4) 38.7> g f + (-20) > -7 f > 30
  48. MATH

    Please help me with this math problem. 150-4((3+9)/(4-1) X (14-11)^2) the answer is 6, I have tried everything and can not get that answer
  49. math, science

    what are the difference and similarities between math and science
  50. English

    1. I like science but not math. 2. I like science but I don't like math. Does #1 mean #2?
  51. Math - Discrete math

    (1) For all integers y, there is an integer x so that x^3 + x = y. (2)For all integers x, x^3 + x is even Thank you for your help.
  52. Math or Maths???

    Which word is correct to use? Math or Maths?
  53. Math

    Hello. Can someone help me? I'm not very sure about some of these :( Stephen read a 90-page book in 6 days. If he continues reading at that rate, how long will ittake him to read a 300-page book? Answer: 20 days. I found this by doing 90/6=15, and then 300/15=20. Mrs. Walters ...
  54. math

    how would i write this in scientific notation 14,718? how would i write this in standard notation 1.98 x 10 to the second power 14,718 could be rewritten as 1.4718*10^4, which is read as "1.4718 times 10 to the fourth power." (The asterisk is often used as the multiplcation ...
  55. 5th grade math word problem

    Santa was making up a batch of dolls but could not remember exactly how many of each kind he needed. He knew that he needed 57 in total that 27 had to have blue eyes and 29 had to have fair hair. Also some had to have both features and 3 dolls were needed having blue eyes and ...
  56. Math

    On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct?
  57. 3rd math

    okay Math genius! Help me out here. I am a number greater than 99 and less than 1,000. Two of my digits that aren't next to each other are the same. My tens digit could not be greater and it is 1 more than my hundreds digit. What number am I?
  58. Math

    On a 20 question math test, your teacher gives you five points for every correct answer and takes away one point for each incorrect answer. If you score 70 on the test, how many did you get correct?
  59. Math

    Hello. I'm not a native English speaker. I have a math assignment and I need to explain the process of this equation. y=14.2x+19.3 542 = 14.2x+19.3 542-19.3 = 14.2x 522.7 = 14.2x x = 36.8… I don't know how to explain this in English, can anyone please help me? ;(
  60. math

    In my math book I got a problem that said explain the meaning of the range I said that you need to add the greatest number and the lowest number if that is not correct what is the meaning of the range.
  61. To all students posting math questions

    Please know that at least 3 of our frequently posting math tutors are away from their homes on trips. There are other very good tutors who are online, but less frequently. You'll need to be very patient.
  62. math

    The city council has decided to add a 0.3% tax on motel and hotel rooms. If a traveler spends the night in a motel room that costs $55 before taxes, how much will the city receive in taxes from him? I am studying for a exam, would you also know a good website for math review? ...
  63. Math(College Algebra)

    I'm having trouble how to set up this math problem: Rebecca Herst received a year-end bonus of $17,000 from her company and invested the money in an account paying 6.5%. How much additional money should she deposit in an account paying 5% so that the return on the two ...
  64. math

    On a T.v. game show a contestant is asked to select a door and then is rewarded with the prize behind the door selected. If the doors can be selected with equal probability what is the expected value of the selection if the three doors behind them have $40000 foreign car, a $3...
  65. Maths

    I need to solve these anagrams of famous mathematitions PHRYGATOAS ADSHERECMI TFMARE GABBEBA COBFIICAN GHETGNINLAI LUDECI PRANIE LLCAOVEE The first one is PYTHAGORAS. For names of other famous mathematicians, check this site:
  66. Math

    Posted by Lance on Friday, April 27, 2007 at 9:47pm in response to math. please give us one set of numbers so we can work an example for you. What was the percentage increase in motor vehicle production in countries outside the United States from 1950 – 1997? 1950- 10,577 ...
  67. english confused

    ive read this story over five times and still don't really get the meaning of bia's dream help plzz RED MESA, Arizona (Achieve3000, July 21, 2007). Although she grew up as a Diné, the term Navajo members use to describe their nation, young Andrethia Bia measured her success ...
  68. math

    The math team in addville travled to subtractville for a math compertition. The bus averaged 40 mph from addville to subtractville but adveraged 60 mph during the return trip. What was the adverage speed of the bus for the entire trip? Thats the story problem i have to solve. ...
  69. ECON!

    Happiness Is ... Being Old, Male and Republican Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up as the economy tanks. Happiness is a complex thing. Past studies have found that happiness is partly ...
  70. math (check answer)

    You want to know the number of students in your school that have a January birthday. You survey the students in your math class. Three students have a January birthday, and 32 do not. So, you conclude that about 8.6% of the students in your school have a January birthday. ...
  71. Chemistry Questions!!

    I was sick for 2 days, and that's really not good in any chemistry class, let alone mine, which is an advanced one. I don't know what I was thinking when I tried to be smart, but I really need help. It's pretty basic, I think, so anyone..? Also, I really have tried these......
  72. econ

    I'm in an econ class and i need at least 4 connections and the reason from this article. Happiness Is ... Being Old, Male and Republican Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up as the economy tanks...
  73. Math

    Math - Cindy, Tuesday, April 29, 2014 at 8:44pm At Bobs diner, it costs $8.00 to purchase two hamburgers and one order of fries. The "family pack" costs 30.00 and comes with six hamburgers and six orders of fries. If the prices are constant,how much does one hamburger cost? ...
  74. Math help

    here's the question Dear Dr. Math, I wanted tto find the area of this hexagon. I few the apothem as I've shown. Then I measured the apothem and perimeter. I used the formula a=1/2ap and got 3.2cm^2 for the area but that seems way too small for me. I think my teacher got lucky ...

    Drawls, How did you get 2h. and then the 2a/h from.Can you help me understand it when you get a chance. Directions: Solve each literal equation for the indicated variable. A=1/2h(B+b) (For b) Area of a trapezoid For Further Reading math,algebra - drwls, Monday, December 18, ...
  76. Math

    Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent) This is for my general ...
  77. math

    solve the compound inequalities as demostrated being careful of how a negative x- term is handled in the solving process show all math work arriving at the solutions display a simple line qraph for each solution set as demostrated. -1<3+2x<11 (Your and compound ...
  78. math

    I suggest you Google each of these people. You can search for the name bio Or you can search for the name height weight. for math i have to do a graph of some sort, so i chose to do a graph of famous ppls heights and weights, so i was wondering do you know like mary careys ...
  79. math

    the mass of 3 dictionaries and 2 textbook is 8 kg and the mass of 3 dictionaries and 3 textbook is 9 kg. find the mass of 5 textbooks? math - Steve, Monday, September 19, 2016 at 5:17am 3d+2t = 8 3d+3t = 9 clearly, t=1 i cant understand it math - Steve, Monday, September 19, ...

    I've removed your last post because it was rude and insulting. I've also banned you from posting here. Jiskha tutors cannot teach you math from the beginning. Since you have neither teacher nor textbook, I urge you to use sites like the following to learn mathematics. http://...
  81. math,correction&help

    Is this right:if it still needs more can someone help me out what else can i say....thanks why are polynomials important? polynomials are important because the are used to determine and solve the unknowns in equations. Many natural processes can be modeled in math equations, ...
  82. Math

    A student wrote this statement: "A triangular prism has a height of 15 inches and a base area of 20 square inches. The volume of the prism is 300 square inches." Identify and correct the error. I am not sure because I am new at doing this kind of math. Please help.
  83. math

    Fewer than 107 girls attend a basketball camp. A total of 180 children attend at the camp. Which inequality can be used to find the number of boys n tha might have attended the basketball camp? math problem
  84. 3rd grade math

    Carl shades a row on a multiplication table. The products in the row are all even. The ones digits in the products repeat 0,4,8,2,6. What row does Carl shade? Now I am awful at math and don't even begin to understand this question!! Please help
  85. Math

    We are currently studying "earning money" for math. I read this sentence: When a store claculates its profit as a percentage of its cost price the profit is always bigger than the profit calculated as a percentage of the selling price. What does it mean and please give me an ...
  86. math

    alan scored a total of 14 points for answering all 15 questions on a math quiz for every correctly answered question alan got 2 points for every wrong ahe lost 2 points how many questions did he answer correclty
  87. math

    alan scored a total of 14 points for answering all 15 questions on a math quiz for every correctly answered question alan got 2 points for every wrong ahe lost 2 points how many questions did he answer correclty
  88. math

    Find the representation of the number 256 in the following bases: a. base six b. base twelve c. base two I get how to write the number of objects as a base(whatever), but I think this is asking me to start from the end number and work backwards. I really need help. I have two ...
  89. 3rd grade

    This is my sons math problem I am not good at math please can you help me and show the work for the calculations " ALI MADE A MODEL FOR 624 USING 6 HUNDREDS, 2 TENS, AND 4 ONES. WHAT IF ALI HAD NOT HAD ANY TENS? HOW COULD SHE HAVE MODELED 624 WITHOUT USING TENS?...
  90. Statistics

    suppose the correla tion between SAT Verbal scores and Math scores is .57 and that these scares are normally distributed. IF a student's Verbal score places her at the 90th percentile, at what percentile would you expect her Math scores to be?
  91. Math

    There are 24 students in Mrs.Smith's 1st block class. 1/4 of the class passed the math test with an A. 12 students in the class passed the math test with a B. What percent of the students in the class passed the test?
  92. Algebra

    I am going to take an Accuplacer math placement test later this week. It is to determine what math course I need to take in college. The school would like me to place in statistics.This will be my second time taking the test. The first time I placed in algebra. Does anyone ...
  93. Math

    How do I get the common multiple of 12, 20, and 35? I am not sure I understand the process. I have 18 toy vans I give7 to lexiev. and 2 to kaitlynne how many do I stil have The common multiple is the number that can be divided evenly by all three numbers. Hint: try 12 x 35. Is...
  94. High School Math

    I'm helping my little sister in her math homework. I just got stuck in this problem. Can anyone please help us out. I'm guessing it's letter C. Am I correct? A small company borrows $50,000 at 11% compounded monthly. The loan is due in 4 years. How much interest will the ...
  95. math

    Good day to you. How can I approach this math problem. "To save for a child's education, the Petersens deposited $2500 into an account that pays 6% annual interest compounded daily. Find the amount of interest earned on this account over a 20-year period". I try solving with ...
  96. history

    the Puritan dilemma 1. Englishmen rejoiced when Henry VIII turned his back on the Pope because now they felt they would be free to join the Protestant Reformation and gain a purer church. A) True B) False 2. Puritan's believed that marriage came before God. A) True B) False 3...
  97. Math

    Pedro spent 2 1/5 hours on his math himework and half as lomg on his science homework one weekend. If his english and social studies homework took 7/8 as long, how much time did he spent on homework that weekend?
  98. Math

    On an automobile assembly line, every third car is green. Every fourth car is a convertible. a) How many cars are out of the first 100 will be convertibles? b) Which number of car is First Green convertibles? Grade 7 Math Please answer, ASAP.
  99. math

    Eli's Dad made him a birthday cake, but forgot to buy candles. He could only find a few. But Eli was smart in math, so his Dad said,"The ratio of candles to years is 3 to 5." That gave him the right number. How old was Eli?
  100. Fifth Grade Math

    How do you explain how to do this math problem to a child? 7/10 of the U.S. population (175,104,000)in 1991 believed saying A to be true. What is the total population? We are trying to find what the whole population total is. They have given us 7/10 or 1755,104,00. How do we ...
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