Math

Student answers 75​% of the questions on a math exam correctly. If he answers 30 questions​ correctly, how many questions are on the​ exam?

  1. 👍
  2. 👎
  3. 👁
  1. 30/x = 75/100

    Cross multiply and solve for x.
    https://www.mathsisfun.com/algebra/cross-multiply.html

    1. 👍
    2. 👎
    👤
    Writeacher
  2. A student answer 75% of the questions on a math exam correctly. If he answers 30 questions correctly, how many questions are on the exam

    1. 👍
    2. 👎
  3. im sorry but none of this helps

    1. 👍
    2. 👎
  4. idek

    1. 👍
    2. 👎
  5. 30 questions represent 75% of the test, so the test consists of:
    30/75%=30/.75=40 questions ..........

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. statistics

    A multiple choice test has 20 questions with each having 4 possible answers with one correct. Assume a student randomly guesses the answer to every question. 1) What is the probability of getting exactly 9 correct answers? 2)What

  2. Stats

    Richard has just been given a 4-question multiple-choice quiz in his history class. Each question has five answers, of which only one is correct. Since Richard has not attended class recently, he doesn't know any of the answers.

  3. Statistics Algebra 2

    A 10-question multiple choice test has 4 possible answers for each question. A student guesses on all ten answer. a)What is the probability that the student selects at least 6 correct answers? b)Is getting exactly 10 questions

  4. Statistics

    There are 3 short questions on math test. for each question, 1 mark will be awarded for a correct answer and no mark for wrong answer. if the probability that mary correctly answers a question in a test is 2/3, determine the

  1. Math

    An exam consists of six true-or-false questions. Assuming that every question is answered, in how many different ways can a student complete the exam? In how many ways may the exam be completed if a penalty is imposed for each

  2. math

    A student takes a multiple choice quiz with 12 questions and 5 alternatives per question. Unfortunately, this student has no idea what any of the answers are, so he randomly selects an alternative for each question on the exam.

  3. Math

    A math quiz is made up of 5 multiple choice questions, each with 4 possible answers. How many possible sets of answers are there?

  4. Penn Foster

    I am looking for the questions to these exams..all I keep getting are the darn answers...I want to compare my answers before I submitt anyone have the orginal questions? to these Anyone have the questions for the penn foster exams

  1. statistic

    Quiz has 6 questions. Each question has five possible answers, only one of each 5 answers is correct. If student randomly guesses on all six questions, what is the probability to answer 2 questions right? Tip: first, you have to

  2. statistics

    A student takes an exam containing 14 multiple choice questions. The probability of choosing a correct answer by knowledgeable guessing is 0.5. At least 9 correct answers are required to pass. If the student makes knowledgeable

  3. stats

    If a student answers 40 multiple choice questions, each with four possible answers, by guessing randomly, the probability that she answers at least 15 correctly

  4. Math

    10 multiple choice questions each with three possible answers only one of which is correct. A student guesses the answer to every question. (a)What is the probability that the student will answer the first six questions correctly

You can view more similar questions or ask a new question.