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Equations

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  • Use this function table to find the value of y when x = 5.

    101
    13
    16
    17


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  • Non Calculator: For which equation is n a negative number?



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  • On January 4, the temperature at 2 p.m. was 5°C. At 11 p.m. it had dropped to –3°C. To find the number of degrees the temperature dropped, which equation could you use?

    5 – 3 = x
    5 – (–x) = –3
    5 – x = –3
    x – (–3) = 5


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  • Twice a number (z) added to 21 is equal to 9 times the number added to 7. What is the number?

    z = -4
    z = -2
    z = 2
    z = 4


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  • Mrs. Herrera is playing a game with her students. She says, "65 subtracted from my number is 32." Which equation could be used to find her number?

    N – 65 = 32
    32 – N = 65
    65 – N = 32
    65 – 32 = N


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  • Neal is selecting a new health club. The one he likes has monthly dues of $24 and a start-up fee of $400. He has determined that the equation y = 400 + 24x can be used to find y, the total cost of being a member at the club based on the number of months, x. After how many months will Neal have spent exactly $1,000 at this health club?

    16
    25
    41
    58


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  • Every day during study hall, Mitchell reads 4 fewer than 4 times as many pages as Alex reads. If Mitchell read 28 pages, how many pages did Alex read?

    6 pages
    7 pages
    8 pages
    24 pages


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  • Marilyn had to read a book that contains 319 pages for her literature class. She can read about 30 pages in 20 minutes. Which of these is CLOSEST to the number of hours it would take Marilyn to read the entire book?

    3.5 hours
    8 hours
    213 hours
    478.5 hours


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  • Determine the value of x that makes the equation shown true 5x + 2 = 42 Which of the following equations is true for the same value of x?

    4x + 2 = 30
    3x – 3 = 5
    3x + 4 = 20
    2x – 4 = 12


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  • Kelly solved the equation below using the steps shown. Which step contains Kelly’s first mistake?

    step 1
    step 2
    step 3
    step 4


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  • Which equation is equivalent to 3(2x – 5) = 4(x + 3)?

    2x = –27
    2x = 27
    10x = –27
    10x = –3


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  • Tom is exactly one year younger than Bill. Which of the following equations most precisely shows the comparison of Tom’s age (T) and Bill’s age (B)?

    T = B + 1
    T > B
    B = T – 1
    T = B – 1


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