Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 HMH Go Math - Answer Keys
Chapter 3: Proportional Relationships; Mixed Review


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Selected Response

  • Question 1 (request help)

    Which of the following is equivalent to \(5^{–1}\)?
    • 4
    • \(\large\frac{1}{5}\)
    • \(-\large\frac{1}{5}\)
    • -5
  • Question 2 (request help)

    Prasert earns $9 an hour. Which table represents this proportional relationship?
    • A
    • B
    • C
    • D
  • Question 3 (request help)

    A factory produces widgets at a constant rate. After 4 hours, 3,120 widgets have been produced. At what rate are the widgets being produced?
    • 630 widgets per hour
    • 708 widgets per hour
    • 780 widgets per hour
    • 1,365 widgets per hour
  • Question 4 (request help)

    A full lake begins dropping at a constant rate. After 4 weeks it has dropped 3 feet. What is the unit rate of change in the lake’s level compared to its full level?
    • 0.75 feet per week
    • 1.33 feet per week
    • -0.75 feet per week
    • -1.33 feet per week
  • Question 5 (request help)

    What is the slope of the line below?
    • -2
    • \(-\large\frac{1}{2} \)
    • \(\large\frac{1}{2}\)
    • 2
  • Question 6 (request help)

    Jim earns $41.25 in 5 hours. Susan earns $30.00 in 4 hours. Pierre’s hourly rate is less than Jim’s, but more than Susan’s. What is his hourly rate?
    • $6.50
    • $7.75
    • $7.35
    • $8.25

Mini-Task

  • Question 7 (request help)

    Joelle can read 3 pages in 4 minutes, 4.5 pages in 6 minutes, and 6 pages in 8 minutes.

    a. Make a table of the data.
  • Type below:
  • Question 7 (request help)

    b. Use the values in the table to find the unit rate.
  •     pages per minute
  • Question 7 (request help)

    c. Graph the relationship between minutes and pages read.
  • Type below:

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