4 years ago

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

Mathematics

1 answer:

Oksana_A [137]4 years ago

3 0

$a_n=a_1+d(n-1)$

$d = 13 - 8 = 5$

$a_{80}=8+5(80-1) = 403$

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

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