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# Sequences: Consecutive Integers - Arithmetic Sequence

In a sequence of 19 numbers, after the first term, each term is 9 more than the previous term. If the last term in the sequence is 200, what is the first term?
Correct. [[Snippet]] In the given sequence, $$d = 9$$ and $$A_{19} = 200$$. Plug in $$d=9$$, $$n=19$$, and $$A_n = 200$$ into the formula and solve for $$A_1$$: >$$A_n = A_1 + (n - 1)d$$ >$$200 = A_1 + (19 - 1) \times 9$$ >$$200 = A_1 + 18 \times 9$$ >$$200 = A_1 + 162$$ >$$38 = A_1$$
Incorrect. [[Snippet]]
Incorrect. [[Snippet]]
Incorrect. [[Snippet]]
Incorrect. [[Snippet]]
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