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mgirl211 Group Title

Find the 9th term of the arithmetic sequence. a10 = 100 and a20 = 50; a9 = _____.

  • 2 years ago
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  1. lilg132 Group Title
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    105?

    • 2 years ago
  2. GT Group Title
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    That seems right.

    • 2 years ago
  3. mgirl211 Group Title
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    What about this one? Find the 11th term of the arithmetic sequence. a3 = 20.5 and a8 = 13, a11 = ______.

    • 2 years ago
  4. lilg132 Group Title
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    remember to click good answer

    • 2 years ago
  5. mgirl211 Group Title
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    I did. Can you help with the other one

    • 2 years ago
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spraguer (Moderator)
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