Mathematics Quiz: Word Problems & Probability
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Mathematics Quiz: Word Problems & Probability

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Questions and Answers

What is the probability that the arrow on the spinner will land on a section labeled 'a'?

  • 2/3
  • 1/3
  • 1/2
  • 1/6 (correct)
  • Which number is equivalent to the fraction $\frac{36}{20}$?

  • $\frac{7}{3}$
  • $\frac{9}{4}$
  • $\frac{21}{5}$
  • $\frac{9}{5}$ (correct)
  • What is the equivalent expression for the sum of Expression 2 and Expression 3, $5(3x-1) + \frac{1}{3}(4x-2)$?

  • 13x-6
  • 13x-4
  • 7x-4 (correct)
  • 7x-6
  • What is the probability that the arrow will stop on any section other than 'b'?

    <p>2/3</p> Signup and view all the answers

    What is the median number when considering the fractions $\frac{36}{20}$, $\frac{5}{3}$, and $\frac{9}{5}$?

    <p>$\frac{9}{5}$</p> Signup and view all the answers

    What are the coordinates of vertex A' after triangle ABC is translated 8 units up?

    <p>(2, 6)</p> Signup and view all the answers

    What is the mean number of birds that the bird watcher saw in one day based on the data provided?

    <p>39</p> Signup and view all the answers

    If Gavin spent 10 hours mowing the grass, what fraction of his total outdoor chores does that represent?

    <p>1/5</p> Signup and view all the answers

    Which graphical representation would be most appropriate for showing Gavin’s chore distribution over the month?

    <p>Pie chart</p> Signup and view all the answers

    Based on the beanbag toss, what is the probability of landing on a blue square?

    <p>8/20</p> Signup and view all the answers

    What is the combined probability of landing on either an orange or green square?

    <p>12/20</p> Signup and view all the answers

    What is the probability that a student chosen at random made 2 or more phone calls based on the line plot data?

    <p>3/5</p> Signup and view all the answers

    If a fair coin is tossed 30 times, what is the expected probability of getting heads?

    <p>1/2</p> Signup and view all the answers

    How many cups of flour should Manuel use if the recipe is scaled down for 4 people?

    <p>2 cups</p> Signup and view all the answers

    What is the price of each theater ticket if the total cost is $190 including a service charge?

    <p>$23.00</p> Signup and view all the answers

    What is the total cost for 3 packets of seeds including shipping?

    <p>$13.50</p> Signup and view all the answers

    Which situation correctly represents the inequality $x geq 12$?

    <p>The sign indicates the area is for children younger than 12 years.</p> Signup and view all the answers

    What is the result after the first step of simplifying the expression $9(4+2)^2+1-6$?

    <p>$9(6)^2 + 1 - 6$</p> Signup and view all the answers

    What would be the total cost if Simone orders 4 packets of seeds including the shipping fee?

    <p>$13.00</p> Signup and view all the answers

    Which of the following inequalities corresponds to a situation where a player must score above 9 points?

    <p>$y &gt; 9$</p> Signup and view all the answers

    What is the equivalent inequality for $x + 5 < 15$?

    <p>$x &lt; 10$</p> Signup and view all the answers

    Study Notes

    Solving Word Problems

    • Manuel needs to use 2 cups of flour to make the recipe for 4 people.
    • Carla paid $23.75 for each theatre ticket.

    Understanding Inequalities

    • At least 12 laps is modeled with the inequality x ≥ 12.

    Simplifying Expressions

    • The simplified expression after the first step is 9(6)^2 + 1 - 6

    Identifying Coordinates

    • The coordinates for triangle A'B'C' are (2, 6) (-6, 14) (-6, -2)

    Probability and Data Analysis

    • The probability of selecting a green square is 7/20.
    • The probability of selecting an orange or green square is 12/20 or 3/5.
    • The probability that the outcome is not orange is 15/20 or 3/4.
    • The probability of a student making 2 or 3 phone calls is 2/5.
    • When tossing a fair coin 30 times, it is expected to land on tails 15 times.

    Understanding Spinners

    • The probability of landing on a section labeled A is 1/6.
    • The probability of landing on a section labeled B is 1/3.
    • The probability of landing on a section labeled C is 2/3.

    Equivalency of Expressions

    • 9/5 is equivalent to Expression 1, which is 36/20.
    • The expression equivalent to the sum of Expression 2 and 3 is 13x-4.

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    Description

    This quiz covers various foundational concepts in mathematics, including solving word problems, understanding inequalities, simplifying expressions, and basic probability. Test your knowledge with practical examples that will challenge your understanding of these key topics.

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