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posted by Anonymous Sunday, December 9, 2012 at 6:36am.
What is the sixth term of the arithmetic sequence if the 10th term is 33 and the 15th term is 53.
there are 5 terms between T10 and T15, so d=20/5 = 4 T6 = T10 - 4d = 33-16 = 17
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