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math

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identify an integer x for which 2x/5 represents a ratio greater that 2:1 but less than 3:1

could 2.4 be a possible answer?

  • math -

    2x/5 > 2/1
    2x > 10
    x > 10

    and

    2x/5 < 3/1
    2x < 15
    x < 7.5

    so x < 7.5 AND x > 10
    no such number exists.

    your answer of x = 2.4
    test:
    if x=2.4
    4.8/5 = .96 which < 3 BUT NOT > 2

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