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Equations

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  Which of the following represents a correct procedure for solving each given equation?

  
  

  

  

  

  

  
  
  

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  Which of the following is equivalent to the equation shown?

  4(x + 2) = 2( x + 1)

  
  

  4x + 8 = 2x + 2

  4x + 2 = 2x + 1

  4x + 2 = 2x

  4x + 8 = 2x

  
  
  

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  Which of these is equivalent to the equation below?

  y = mx + b

  
  

  

  

  

  

  
  
  

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  Solve: 4(6x - 10) = 8x + 40

  
  

  0

  5/2

  25/8

  5

  
  
  

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  Mrs. Allan is going to buy markers and crayons for the 17 students in her kindergarten class. She has $44 to spend for the markers and crayons. Markers cost $2 for each box and crayons cost $3 for each box.

  If Mrs. Allan decides to buy seven boxes of markers, what is the GREATEST number of boxes of crayons she can buy, not including tax?

  
  

  9 packages of crayons

  10 packages of crayons

  12 packages of crayons

  30 packages of crayons

  
  
  

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  What is the solution to this equation: 6x + 4 = 2x - 12

  
  

  -4

  4

  2

  -2

  
  
  

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  An airplane is 30 miles away when it appears on the airport’s radar. It is flying directly toward a runway at 2 miles per minute. If the speed and heading of the airplane remain constant, in how many minutes will the airplane be 5 miles from the runway? (Use d = rt)

  
  

  6.0

  12.5

  15.0

  17.5

  
  
  

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  The picture shows a machine part in the shape of a cylinder. The diameter of the base is specified as shown. A part passes inspection if its diameter measure is within 0.12 millimeters of the specified measure. Which inequality could be used to find the range of diameters that would pass inspection?

  
  

  

  

  

  

  
  
  

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