Question

F(n) = 9+ 5n; 64

determine which term produces the given answer?​

Answer 1

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