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Find the 20th term of the arithmetic sequence if the first term is 8 and the common difference is 3.

Find the 20th term of the arithmetic sequence if the first term is 8 and the common-example-1
User Turch
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1 Answer

4 votes

Ok, so

We know that the first term ( a1 ) is 8, and the common difference is 3.

So, we replace in the equation:

(a20) = 8 + 3 ( 20 - 1 )

(a20) = 8 + 3*19

(a20) = 65

So, the 20th term of the aritmetic sequence is 65.

User Krmogi
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