Question

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

Answer 1

Answer: 403

Explanation:

Answer 2

403

Explanation:

Use the equation:

An = A1 + (n-1)d

d=common difference

To get d: a2-a1

13-8=5

d=5

To find the 80th term:

A80 = 8 + (80-1)5

=403