dwrls,math

140,505 results, page 17

  1. math

    I am sorry but I am not good at math, this may seem like a dumb question but I don't do well with word problems? I can't figure it out, maybe I am making it too hard on myself, can someone point me to the right direction? . The distance from Philadelphia to Sea Isle City is ...
  2. math

    I am sorry but I am not good at math, this may seem like a dumb question but I don't do well with word problems? I can't figure it out, maybe I am making it too hard on myself, can someone point me to the right direction? . The distance from Philadelphia to Sea Isle City is ...
  3. math

    not sure if this had to do with math but my professor gave us this last hw assignment that i don't understand at all. It has to do with the grade scaling he does. 4x Exams = 37450 HW = 9362 Final = 16385 Lab = 23407 Recitation = 7022 Total Points = 93626 He asks whats the ...
  4. Math

    I missied school Friday and am not sure how to do my math homework. here is one problem. If someone will help me figure this out and explain it I would be able to figure the rest out. ** Write two values of x for which the i nequality is true 4.5<x<4.6 Will someone ...
  5. 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 ...
  6. 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? ...
  7. Math Help

    This is a substitution equation. Would that change the steps that you did? Y=3x+1 Y=5x-3 Answer says x=-2 and y=7 Please explain steps. Thanks math help - MathMate, Monday, April 23, 2012 at 10:25pm Y=3x+1 ...(1) Y=5x-3 ...(2) By comparison of (1) and (2), we conclude that 3x+...
  8. Math help please

    I'm so lost on this math Hw it's over factoring variables and I don't get it. Like my teach said that we are supposed to have the number and letter in front of everything. For example: -14x^2-7x+21 For factoring I got 7x(-2x-1+3) Because my teacher told me to to combine both 7...
  9. math

    I have a question on my math that my teacher cant help me with because this one is for try it. Can you help me see if it is right?: It says: 12 . Wich is equal to 30 hundreths? A)3 thousandths B)3tenths C)3 tens D)3thousands I think the answer is B but, it really confuses me ...
  10. Math

    The concrete for a sidewalk is being poured outside the perimeter of a new subdivision, which is a 280 ft. by 720 ft. rectangle. The building code requires that the sidewalk be 5 feet wide and 8 inches deep. How many cubic yards of concrete will need to be poured? math: ...
  11. Math

    Situation: You exercised 24 hours each month for a year. How many hours did you exercise by the end of the year? You may be able to do the math mentally thanks to expanded notation and the Distributive Property How would I put this into distributive property??
  12. math

    hi my name is hedi and i am in serious need with help with some math problems dealing with polynomials can some one please help me? Determine whether each expression is a polynomial. If it is a polynomial, state the degree of the polynomial. (This is the question) 1.5x^3+2xy6^...
  13. Math

    One of the "think outside the box" problems in my math work is really challenging me. I need to write and equation expressing: 8 cos theta + 15 sin theta as a single sinusoid I tried graphing to no avail and there is nothing in my textbook about turning an equation like that ...
  14. math

    If a man drove 3.5 miles to a gas station and on the way home drove 2 times that +.7 miles,how many miles did he drive?? 3.5 + 2 times 3.5 + .7 = what Do the math. 17.5 omg ur so smart...
  15. Math

    A math class has 25 students. There are 13 students who are only in the band, 4 students who are only on the swimming team, and 5 students who are in both groups. How many students are not in either group? I think it's 3 students?
  16. Math

    Linda got a math test handed back to her and got a 96% on it. However she lost the test, not knowing what she got. If she knows that she scored a 43 on the test then how many 1- mark questions are there on the test?
  17. Math

    e Math Test: grandmother buys grandson a plastic bat & ball for a $1.10. The bat cost a dollar more than the ball. How much did the ball cost?
  18. math

    Hannah's grade on her last math test was 4 points more than Mark's grade. Write an expression for Hannah's grade, using m as a variable. Evaluate the expression if m=92.
  19. 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?
  20. Childhood Education

    Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking
  21. Math Statistics

    The table below shows Rico’s grades during the third term in four subjects. Subject Units Grade Math 1.5 98 Science 2 97 English 1.5 95 A.P. 1 99 What was Rico’s average grade in the four subjects?
  22. math

    Fractions and mixed numbers are often used in everyday life. Discuss a real-life example in which you would need to add, subtract, multiply, or divide fractions or mixed numbers, and show the math
  23. program planning

    Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A. Math and science B. Social studies and science C. Cooking and math D. Social studies and cooking 
  24. math

    In a recent Math Duel, my team began by graphing 51x+24+75. If our opponents graphed a line parallel to ours, they might have graphed A. 17x+16y=25 B. 17x+8y=50 C. 34x+8y+50 D. 34x+16y=50
  25. Math

    There are 8 more girls in the math club. The club has a total of 44. How many are girls and how many are boys?
  26. Math

    Jared can work 54 math problems in 1 hour. How many problems can he work in 10minutes?
  27. properties and mental math

    use properties and mental math to find the value of (86 + 27) + 3
  28. 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.
  29. Math

    There are 28 students in math class. 22 of them passed the test. What percentage passed the test.
  30. To Ms.Sue And All Teachers

    I am new in this website. Please help me with my math homework. How do you subtract fractions? How do you subtract 7 and 2/5 AND 4 and 5/10? (7 and 2/5 - 4 and 5/10) How do you subtract 6/10 and 6/20? Thank you! Please visit the following site for a super good tutorial: http...
  31. Math (probability) repost for Christine

    Math - Christine, Tuesday, October 16, 2007 at 9:13am The odds against Amy winning the tennis tournament are 5:2. Find the probability that Amy wins the tournament ?
  32. statistics

    What is the probability that a student in a college of 650 students in both a math major and a computer science major ( assuming these events are independent) If there are 72 math majors and 105 computer science majors?
  33. 4th Grade Math: Help Is Needed ASAP

    My son is in the fourth grade and is needing help with these math problems. Can someone please help him with these problems. 1. 2/3+2/9= 2. 3/5+3/10= 3. 5/12+1/3= 4. Find the sum of 1/6 and 1/12 5. Add 1/4 to the answer in Exercise 4. 6. What is the sum of 1/8, 1/4, and 3/8? 7...
  34. math: counting techniques

    Six problems (numbered 1 to 6) are set for a math test. A student can score 0, 1, 2, 3 points for each problem. Find the number of ways to score a total of 15 points for the six problems.
  35. Math

    Okay. I have questions like "Walks ten meters in 3 seconds" . How do I find her walking rate. After that I have to find an equation to represent the distance she walks in t seconds. Please help me...Im very confused and terribe at math
  36. Math

    For an experiement to test elastic collision, ball 2 was at rest and ball 1 was released from a certain height and distance and hit ball 2. A set of measurements were collected which was v1 and v2 prime for each ball. I need to calculate the kinetic energy before and after ...
  37. 3rd grade

    math to endure the heat,firefighters wear protective gear that weighs about 40 pounds.If a suited-up firefighter weighs 220 pounds,how can you use mental math to find the firefighters weight without the gear?
  38. math

    Posted by question on Wednesday, July 22, 2009 at 4:56pm. solve 5/8x + 1/16x=7/16+= the solution is x=___ Responses math - Mr. L, Wednesday, July 22, 2009 at 7:23pm 5/8x is the same as 10/16x That should help my final answer would be 7/27 do i have it right
  39. 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 .
  40. 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.
  41. math

    Use symbolic Math symbolic representation: 1. You observe that oen fox eats 100 rabbits each year. You have the idea that every increase of one int eh fox population will cause the rabbit population to decrease by 100.
  42. 7th grade math pre algebra

    I'm confused about this math question my teacher gave us today. Bowser's dog food is 40% meat. How much dog food would Bowser eat in order to get 11 kgs of meat?
  43. math

    Mrs. rhombus has to make supply bags for a math lesson. She has 60 folders, 45 pairs of scissors, and 30 rulers. What is the greatest number of supply bags that Mrs. Rhombus can use to divide the school supplies into equal groups?
  44. Stats

    You have many old textbooks in your apartment. You have 6 math books, 7 econ, and 4 accounting. Assume that each textbook is different than the other. A) What is the probability that the last book is one of the economic textbooks? B) What is the probability that none of the ...
  45. Math

    Use the graph below to answer the following question. I'll post the link to the graph below. Find the slope. A. 2 B. -1/2 C. -2 D. 1/2 Honestly I'm horrible at Math so I can't really pick a answer can someone please help me? Please explain to me how to work this problem.
  46. Math

    The Walters' backyard pool is rectangular in shape and is similar to the rectangle formed by their fenced backyard. The pool measures 10 ft long and 8 ft wide. If the length of the backyard is 35 ft long, what is the width of the backyard? Math - Henry, Monday, December 5, ...
  47. math

    find the slope of the line through the given points (8,-2) and (8,-1) when i do the math I come up with 1/0 as the slope making that infinite. Our choices for the answer are: a)0 B) 1/16 c) 3/16 d) no slope would the answer be d since the slope is infinite?
  48. math

    in a math contest of 20 problems. 5 hpoints given each correct answer. 25 points are deducted for each incorrect answer. if janelle answered 20 problems and scored 72 points. how many correct answers did she had?
  49. math/ chemistry

    so I have this chemistry problem which involves math and basically I need to convert 62 g/mol into mol/L but I don't know how. like do you DIVIDE the g/mol by 1000 to convert g to L? and then how to you get the mol to become the numerator?
  50. Math

    HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5 or 5&1/2 Tell what ...
  51. Math 213 Elementary Math

    2. Let U = {x x is a female} A = {x x is a mathematician} B = {x x owns a pickup} C = {x x owns a dog}
  52. math

    a student earned a grade of 80% on a math test that had 20 problems. How many problems on this test did the student answer correctly?
  53. 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
  54. 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. ...
  55. Computer Science

    public class RandomPhoneNumber { public static void main(String[] args) { int num1=(int)(Math.random()*7); int num2=(int)(Math.random()*7); int num3=(int)(Math.random()*7); int set1=(int)(100+Math.random()*642); int set2=(int)(1000+Math.random()*8000); System.out.println("Your...
  56. Math - 2nd try

    Please show me how to set up and solve: You have 6 cups of sugar. It takes 1 cup of sugar to make 24 cookies. The function c(s) = 24s represents the number of cookies, c, that can be made with s cups of sugar. What domain and range is reasonable for the function? math - ...
  57. math,help

    What does it mean to factor an algebraic expression into prime factors? Prime factors are factors that cannot be further factored. Do you know what a interval is in math terms? i need the definition yeah so what do you mean it should be put in help not here in quetions caus ei...
  58. math

    In a contest , 2 participants were asked about their age . To test the strength of their math , they are asked to add their ages together. One answer 44 and the other gives 1280. The first obtained from the parse age with one another , while the second can multiply both their ...
  59. DRWLS,MATH,ALGEBRA

    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, ...
  60. math

    How can I add a two digit number and two three digit numbers in my head. Any tricks anyone knows in connection with short-cuts to solving different math problems( such as addition, subtraction,multiplication, division, rounding, conversions, percents) in your head when you can...
  61. Math

    I need some help please. I don't understand the math that we are doing. Please explains to me in detail how to do radical expressions and like how to simplify them and stuff. I don't get it and it would be much appreciated. here is one of the problems. Also my computer does ...
  62. 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 - ....
  63. Math

    Math Problem: Find the area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth. Would someone please check the way I worked this and let me know if I did it correct or not? Thank You A=3.14 (14ft)2 A=3.14 (196) A=615.44 Im thinking I didn't ...
  64. Math

    Kerry skates laps around the playgroung. The playground is 150 meters long and 50 meters wide. How many laps will it take her to skate 1 kilometer? I need els really badly and I av a math test tommorow I need to study perimeter and area.... I old appreciate ur help. Tnx😊
  65. Math

    There was a surge in math club membership after the fun Halloween party. When the principal asked Mrs. Germain how many students were currently in the club, she replied, "Three times our number plus a third of our number plus a fourth of our number plus you and me is two ...
  66. math

    It could be different. One is supposed to define symbols before one starts with a Let statement, as in Let B= a constant Let b= some other constant or let b=B I suspect it is a sloppy typographical error, so B+b= 2B or =2b in math is there a differenc in B and b for example if...
  67. Math- consecutive intigers

    A student opens a math book to two consecutive pages with a sum of 1640. What are the two pages? I would need one odd number and one even. 819 and 820 are as close as I can come. What am I missing?
  68. Math

    Dear Readers, I am a 6th grader that recently took a math test. I got a question wrong, and I think it was because I don't know the definition to the question. Can you please tell me what an interval in mathematical terms is. Please give me something a 6th grader can ...
  69. Childhood Education

    Learning to make candy from a recipe would relate most directly to which two of the 13 activity areas? A Math and science B Social studies and science C Cooking and math D Social studies and cooking . I belive the C is the correct answer
  70. 7th Grade Math

    I am stumped about the order of the steps to follow on the right side of a 2-step math equation that I have for homework tonight: 2(6d+3)=18-3(16-3d) Do I multiply -3 times 16 and -3 times -3d or do I isolate the minus/negative sign and multiply 3 times 16 and 3 times -3d? ...
  71. basic math

    I am not sure the solvent in this problem, as far as what you do when lining this problem up. The math problem..... Add 150 and 93.17. I don't know if I should be placing 150 at the first decimal or the second. I know I would usually do 150.00 93.17 but the 2nd decimal is ...
  72. 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 ...
  73. math

    mr. pursley, have you ever worked geo., trig. etcwith no calu.s with the heat on , when it had to be right?wheather you blew up your target or something else or the bld. collapsed or was built in the correct place? i'm not an answer grazer, but qam an answer seeker.I'm trying ...
  74. Math

    I have 4 math problems that need to be solved by using factoring. I am unable to figure the following out. I have used the FOIL method but it seems not to be working out. I appreciate any help I can get. Thanks ^ exponet 3x^3-7x^2+2x x^2-2x+5 x^4-7x^3+2x-14 8x^2-2x=3 3x^3-7x^2...
  75. 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 ...
  76. Math

    Mr. customs is correcting the class's math homework on customary units. which of the following measurements is reasonable? A pencil is 12 feet long. The back porch is 12 inches wide. The 3rd hole on the golf court is 123 miles long. The distance from new York to California is ...
  77. Math

    A man is in a tree house 7ft above the ground. He is looking at the top of another tree that is 24ft tall. The bases of the trees are 40ft apart. What is the angle of elevation from the mans feet to the top of the tree? Round to the nearest degree. 23 31 67 59 Need help. I was...
  78. MATH

    Suppose 10,000 is invested at 6 percent.how much additional money must be invested at 8 percent to produce a yield on the entire amount invested of 7.2 percent. ( Please show each and every steps of this math with the rough works) THANK YOU SO MUCH.
  79. statistics

    In a group of 100 students, 60 are taking math and 12 are taking English, but no one is taking both. What is the probability that a randomly selected student from this group is taking either math or English?
  80. 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.
  81. maps and scale drawings math MATH HELP help !!!!

    the actual distance between two cities is 135 km. The map scale is 1 cm : 100 km find the map distance. A)13.5 cm B)1.35 cm C)0.135 cm D)1350 cm
  82. Math Inequalities

    -9/8x greater than or equal to -1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do math correctly....
  83. 5th grade math

    My daughter must correct the problems that she has gotten wrong in math, and we are trying to help her. I can not remeber how to write decimals in exponential form, and I tried looking in her book. Can some one help me so that I can help my daughter. Thanks Here is the problem...
  84. math

    the bar and graph shows the number of students by major in the college of arts and sciences. What is the ratio of history majors to the total number of students in the college? Math-200 history-300 english-400 science-150 other- 175
  85. Math

    Help help!! Trying to help son with math homework.. Please help Create a table for each set of values. Test each table for equivalent ratios to find which set of values describes the proportional relationship of the two quantities. 66 ounces of peanuts to 89.1 ounces of ...
  86. 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??????
  87. Math

    The mean of Susan's math and science scores is 74 points. The mean of her math and English scores is 83 points. How many more points did Susan score in English than in science?
  88. 11th grade Algebra 2

    At a college bookstore, Carla purchased a math textbook and a novel thjat cost a total of $54, not including tax. If the price if the math textbook, m, is $8 more than 3 times the price of the novel, n, write a system of linear equations that could be used to determine the ...
  89. 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 "...
  90. math

    summer graded 25 math papers in 30 minutes.larry graded 22 papers in 20 minutes.what is the difference in the number of papers they can grade in two hours?
  91. math homework

    Distance Rate Time in Math if x=yz, find the value x given that y=2 and z=5 Given T=RV, find Rif T=4 and V=8 Given w=xyz find w if x=2,y=3 and z=6 If C=ab, find Cif a=0.65 and b=1.9
  92. Math

    Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject?
  93. Math

    Of the first graders who were asked, 1/6 like math best, 2/3 liked reading best, and 12 liked science best. How many were asked their favorite subject?
  94. statistics

    suppose that 70% of all college students love math. in a random sample of 8 college students, let x be the number of students who love math.find p(x=6)
  95. 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 - (...
  96. 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 ...
  97. 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 ...
  98. Math

    What is 5/8 + 4/7 -1 ? I can't understand this math problem.... Please help me.... ------------------ Problem: In a boys' school, 5/8 of the boys play football and 4/7 play rugby. If every boy plays at least one of the two games, find the fraction of the boys who play both I ...
  99. Re: Physics/Math

    A single force acts on a 5.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to t = 2.0 s. For ...
  100. math

    I'm not good at math! I need help with finding a decimal from a fraction. like 1/3, 13/15, 19/32 I can't figure out how to turn it into a decimal! Just divide the numerator by the denominator. Use long division or a pocket calculator. can u help mme because i get f,s all the ...
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