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Write an equation for the sequence whose third item is 27 and each item is 5 more than the previous.

User Bearaman
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2 Answers

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Answer:

an = 17 +5(n -1)

Explanation:

Hope this helps!!

User Amirali Eshghi
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Answer:

an = 17 +5(n -1)

Explanation:

The first term can be found by working backward from the third term:

third term = 27

second term = 22 . . . . subtract 5 from 3rd term

first term = 17 . . . . . . . . subtract 5 from 2nd term

The generic term is given by the formula ...

an = a1 + d(n -1) . . . . . a1 = first term; d = common difference

Here, we have a first term of 17 and a common difference of 5. So, the sequence terms are described by ...

an = 17 +5(n -1)

User Meng Lin
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