At 9 a.m. there were 6 visitors at an exhibit. The number of visitors triples every hour until noon. How many visitors are at the exhibit at noon?

Question

 The answer must be in exponential notation. 

Answer 1

Hi Brandon, 

Plan: We can solve this problem by creating a chart from 9am to 12pm. Each hour we must "triple," meaning "multiply by 3."

9am-10am is 6 visitors

10am-11am is 6*3=18 visitors

11am-12pm is 18*3=54 visitors

Sincerely, 

Starlyte H. 

Answer 2

a_n = a₁(r)^n-1

a₄ = 6(3)³