Question

15,9,27/5 find the 10th term

Answer 1

0.091

Explanation:

9/15 = 0.6

(27/5) / 9 = 0.6

The constant ratio, r, is 0.6.

a_n = a_1 × r^(n - 1)

a_1 = 9

a_1 = 9 × 0.6^(1 - 1) = 9 × 1 = 9

a_2 = 9 × 0.6^(2 - 1) = 9 × 0.6^1 = 5.4

a_10 = 9 × 0.6^(10 - 1) = 9 × 0.6^9 = 0.090699264