Question

Describe the pattern. (P.772)

$80,40,20,10,\dots$

Short answer

The pattern is geometric pattern.

Step-by-step solution

Step 1. Given information.

The given sequence is $3,11,19,27,\dots$.

Step 2. Explanation.

If you check the pattern $80,40,20,10,.....$ it can be seen that each successive member is the product of the fraction $\frac{1}{2}$and the number before it, so it can be said that the given pattern shows a geometric series with a common ratio of $\frac{1}{2}$ .