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

User Mariano Zorrilla
by
7.8k points

2 Answers

4 votes
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!
User Sarawut Positwinyu
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8.4k points
2 votes
2 + 29 times 5 = 147

User Nknj
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8.1k points
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