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Find the 80th term of the following arithmetic sequence. 8, 13, 18, 23, ...​
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5 votes
Find the 80th term of the following arithmetic sequence.

8, 13, 18, 23, ...​

User Smolda
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1 Answer

2 votes


a_n=a_1+d(n-1)


d = 13 - 8 = 5


a_(80)=8+5(80-1) = 403

User Daniel Khoroshko
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