Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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Selected Response

  • Question 1 (request help)

    Which number can you add to 15 to get a sum of 0?
    • -10
    • -15
    • 0
    • 15
  • Question 2 (request help)

    Students are painting the backdrop for the school play. The backdrop is 15 feet wide and 10 feet high. Every 16 inches on the scale drawing represents 5 feet on the backdrop. What is the area of the scale drawing?
    • \(150\text{ in}^2\)
    • \(6\text{ in}^2\)
    • \(3096\)
    • \(1536\text{ in}^2\)
  • Question 3 (request help)

    Two sides of a triangle measure 8 cm and 12 cm. Which of the following CANNOT be the measure of the third side?
    • 4
    • 12
    • 8
    • 16
  • Question 4 (request help)

    A cross section is the intersection of a three-dimensional figure and a _____ .
    • point
    • plane
    • line
    • set

For 5–6, use the diagram.

  • Question 6 (request help)

    Which describes the relationship between ∠BFA and ∠CFD?
    • adjacent angles
    • complementary angles
    • supplementary angles
    • vertical angles
  • Question 7 (request help)

    All clothing is being marked down 15%. Which expression represents the new retail price?
    • \(0.85\text{x}\)
    • \(1.15\text{x}\)
    • \(1.85\text{x}\)
    • \(0.15\text{x}\)

Mini-Tasks

  • Question 8 (request help)

    Ira built a model of the Great Pyramid in Egypt for a school project. The Great Pyramid has a square base with sides of length 756 feet. The height of the Great Pyramid is 481 feet. Ira made his model pyramid using a scale of 1 inch : 20 feet.

    a. What is the length of each side of the base of Ira’s pyramid?
  •     in
  • Question 8 (request help)

    b. What is the area of the base of Ira’s pyramid?
  •     square inches
  • Question 8 (request help)

    c. What is the height of Ira’s pyramid?
  •     in
  • Question 8 (request help)

    d. Ira built his model using cross sections that were cut parallel to the base. What shape was each cross section?
  • Type below:

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