Math Practice 101
Homework Explained - Math Practice 101

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Grade 7 HMH Go Math - Answer Keys


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  Independent Practice  

  • Question 6 (request help)

    Art

    Marie has a small copy of Rene Magritte’s famous painting, The Schoolmaster. Her copy has dimensions 2 inches by 1.5 inches. The scale of the copy is 1 in.:40 cm.

    a. Find the dimensions of the original painting.
  • Length :     cm
    Width :     cm
  • Question 6 (request help)

    b. Find the area of the original painting.
  •     sq cm
  • Question 6 (request help)

    c. Since 1 inch is 2.54 centimeters, find the dimensions of the original painting in inches.
  • Length :     inches
    Width :     inches
  • Question 6 (request help)

    d. Find the area of the original painting in square inches
  •     sq inches
  • Question 7 (request help)

    A game room has a floor that is 120 feet by 75 feet. A scale drawing of the floor on grid paper uses a scale of 1 unit:5 feet. What are the dimensions of the scale drawing?
  • Length :     units
    Width :     units
  • Question 8 (request help)

    Multiple Representations

    The length of a table is 6 feet. On a scale drawing, the length is 2 inches. Write three possible scales for the drawing.
  • Type below:
  • Question 9 (request help)

    Analyze Relationships

    A scale for a scale drawing is 10 cm:1 mm. Which is larger, the actual object or the scale drawing? Explain.
  •    
  • Question 10 (request help)

    Architecture

    The scale model of a building is 5.4 feet tall.

    a. If the original building is 810 meters tall, what was the scale used to make the model?
  •     ft. :
    		    m
  • Question 10 (request help)

    b. If the model is made out of tiny bricks each measuring 0.4 inch in height, how many bricks tall is the model?
  •     bricks

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