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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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