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April 18, 2014

Homework Help: advanced math

Posted by Jared on Wednesday, September 30, 2009 at 8:56pm.

suppose that a1, a2, a3, ..., ak forms an arithmetic sequence. If a5+a8+a11=10, a7+a10+a13=12, and ak=11, find k

note: the numbers and the k after the a's are subscript but i don't know how to type that

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