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Mathematics

8th -

9thgrade

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Applications of Linear Equations

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10 questions

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  • 1. Multiple Choice
    5 minutes
    1 pt

    Choose the equation that models the following situation:


    Mike joins a gym for $25 up front and a $30 monthly fee.

    y = 25x+30y\ =\ -25x+30

    y=25x+30y=25x+30

    y=30x+25y=30x+25

    y=30x25y=30x-25

  • 2. Multiple Choice
    5 minutes
    1 pt

    Choose the equation that models the following situation:


    The water level in a bath tub was 14 inches and Angelo pulls the plug and it decreases at a constant rate of 2.5 inches every minute.

     y = 14y\ =\ 14 

     y=2.5x +14y=2.5x\ +14 

     y=2.5x14y=-2.5x-14 

     y=2.5x+14y=-2.5x+14 

  • 3. Multiple Choice
    5 minutes
    1 pt

    Choose the equation that models the following situation:


    Starting at her house, the distance Natalie is from her house if she walks to school at a constant rate of 8 feet per second.

     y = 8y\ =\ 8 

     y=8xy=8x 

     y =x+8y\ =x+8 

     y=8xy=-8x 

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