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mgirl211

  • 4 years ago

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

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  1. lilg132
    • 4 years ago
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    105?

  2. GT
    • 4 years ago
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    That seems right.

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

  4. lilg132
    • 4 years ago
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    remember to click good answer

  5. mgirl211
    • 4 years ago
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    I did. Can you help with the other one

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