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MATH

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the first number of a sequence is 200. every number of the sequence after the first is 100 less than twice the preceding number. what is the 5th number of the sequence

  • MATH -

    I'll get you started.

    200, 300, 500

    Take it from there.

  • MATH -

    how is it 200, 300 when it says it is 100 less than twice the preceding number... isnt it 200-100=100x2==200 again? im confused

  • MATH -

    100 less than _twice_ the preceeding number.

    (200)*2 -100 = 300
    (300)*2 -100 = 500
    (500)*2 -100 = ... et cetera

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