Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys


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  • Question 7 (request help)

    The number of centimeters varies directly with the number of inches. Find the measure of an object in centimeters if it is 50 inches long.
  •     centimeters

Persevere with Problems If y varies directly with x, write an equation for the direct variation. Then find each value.

  • Question 9 (request help)

    Find y when x = 10 if y = 8 when x = 20.
  • y =    
  • Question 10 (request help)

    If y = -6 when x = -14, find x when y = -4.
  • x =

  H.O.T. Problems Higher Order Thinking  

  • Question 11 (request help)

    Model with Mathematics Write three ordered pairs for a direct variation relationship where y = 12 when x = 16.
  • Type below:
  • Question 12 (request help)

    Persevere with Problems The amount of stain needed to cover a wood surface is directly proportional to the area of the surface. If 3 pints are required to cover a square deck with a side of 7 feet, how many pints of stain are needed to paint a square deck with a side of 10 feet 6 inches?
  • pints
  • Question 13 (request help)

    Reason Inductively Describe two-real world quantities that have a proportional linear relationship. Explain how you could change the situation to make the relationship nonproportional.
  • Type below:

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