SOLUTION: If a2=15 and a9=39, what is a16?

SOLUTION: If a2=15 and a9=39, what is a16?

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Question 1039329: If a2=15 and a9=39, what is a16?
Answer by chen.aavaz(62) (Show Source): You can put this solution on YOUR website!
This is an arithmetic sequence with common difference d, which can be calculated as follows:
Number of terms from a2 to a9: 7, so the total difference for 7 terms is

Similarly, from a9 to a16 we have again 7 terms, so the total difference will again be 24.
Therefore:
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