Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 McGraw Hill Glencoe - Answer Keys
Chapter 9: Probability; Lesson 6: Permutations


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  • Question 8 (request help)

    A certain number of friends are waiting in line to board a new roller coaster. They can board the ride in 5,040 different ways. How many friends are in line?
  •    students
  • Question 9 (request help)

    The Coughlin family discovered they can stand in a row for their family portrait in 720 different ways. How many members are in the Coughlin family?
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  • Question 10 (request help)

    Howland Middle School assigns a four-digit identification number to each student. The number is made from the digits 1, 2, 3, and 4, and no digit is repeated. If assigned randomly, what is the probability that an ID number will end with a 3?

H.O.T. Problems Higher Order Thinking

  • Question 11 (request help)

    Model with Mathematics Describe a real-world situation that has 6 permutations.
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  • Question 12 (request help)

    Perse vere with Problems There are 1,320 ways for three students to win first, second, and third place during a debate match. How many students are there on the debate team? Explain your reasoning.
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Standardized Test Practice

  • Question 13 (request help)

    A baseball coach is deciding on the batting order for his nine starting players with the pitcher batting last. How many batting orders are possible?
    • 8
    • 72
    • 40,320
    • 362,880

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