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F(n) = 9+ 5n; 64

determine which term produces the given answer?​

1 Answer

6 votes

Answer:

the 11th term

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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