11th grade Algebra II

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Chad had a garden that was in the shape of a rectangle. Its length was twice its width. He decided to make a new garden that was 2 feet longer and 2 feet wider than his first garden. If x represents the original width of the garden, which expression represents the difference between the area of his new garden and the area of the original garden?

  • 11th grade Algebra II -

    original garden is (x)(2x) = 2x^2

    new garden = (x+2)(2x+2) =

    so difference = (x+2)(2x+2) - x(2x)

  • 11th grade Algebra II -

    wow!!! that was so fast. Thank you so much!
    So the answer is 6x+4, right?

  • 11th grade Algebra II -

    yes

    (just happened to be on the computer)

  • 11th grade Algebra II -

    Thank you!!! :)

  • 11th grade Algebra II -

    teresa and julia are among 10 students who have applied for a trip to washington DC. Two students from the group will be selected at random for the trip. What is the probability that teresa and julia will be the 2 students selected?

  • 11th grade Algebra II -

    20%

  • 11th grade Algebra II -

    2x-5y+z=23
    4x+3y-5z=1
    3x-3y-4z=9

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