If the 27th term of an arithmetic sequence is -124 and the common difference is -11 then what was the first term?​

Question

If the 27th term of an arithmetic sequence is -124 and the common difference is -11 then what was the first term?​

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Huyền Thanh 5 years 2021-08-29T04:41:38+00:00 1 Answers 25 views 0

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  1. kimcuc
    0
    2021-08-29T04:43:19+00:00
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    Answer:

    First term   = 162.

    Step-by-step explanation:

    a27 = a1   – 11 (27 – 1)

    = a1 – 286

    So a1 – 286 =  -124

    a1 = 162.

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