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12 October, 15:54

F (n) = 9 + 5n; 64

determine which term produces the given answer?

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Answers (1)
  1. 12 October, 19:16
    0
    the 11th term

    Step-by-step explanation:

    f (n) = 9 + 5n;

    Let f (n) = 64

    64 = 9+5n

    Subtract 9 from each side

    64-9 = 9+5n-9

    55 = 5n

    Divide each side by 5

    55/5 = 5n/5

    11 = n
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