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22 March, 18:05

What is the value of the 24th term in the following arithmetic sequence?

-9, - 2, 5, 12, ...

+1
Answers (2)
  1. 22 March, 18:24
    0
    A24 = a1 + (24-1) d where a1 = - 9 and d = common difference (12-5 = 7)

    so the answer is - 9 + 23*7 = 152 Answer
  2. 22 March, 19:13
    0
    152

    1. rises by 7 each time

    2. Goes up 23 times (because it starts with one)

    3. 24 * 7 = 168

    4. - 9 + 168 = answer
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