Since 1/3 hour is the same as 20 minutes, Brianna has 20 minutes to spend on each section.
Answer:
Brianna has 20 minutes to spend on each section.
Step-by-step explanation:
To find out how much time Brianna has to spend on each section, we divide the total time she has (1 hour) by the number of sections (3).
So, 1 hour ÷ 3 sections = 1/3 hour per section.
Since 1/3 hour is the same as 20 minutes, Brianna has 20 minutes to spend on each section.