Find the 30th term of an arithmetic sequence whose first term is 2 and common difference is 5.

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asked Mar 24, 2018 95.7k views

2 Answers

Sarawut Positwinyu · Answer 1 · 2018-03-25T16:35:54+0000

First, create a formula for the arithmetic sequence.
a(n) = a(1) + d(n - 1)
a(n) = 2 + 5(n - 1)
a(30) = 2 + 5(29)
a(30) = 2 + 145
a(30) = 147

Hope that helps!

Find the 30th term of an arithmetic sequence whose first term is 2 and common difference is 5.

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