Question

The percentage of people in a certain country who have trust in newspapers declined approximately linearly from 40% in 1999 to 28% in 2004. Find the average rate of change of the percentage of people in that country who have trust in newspapers per year.

Answer 1

The average rate of change of the percentage of people in the country who trust newspapers per year is -2.4%.

Step-by-step explanation:

To find the average rate of change of the percentage of people who have trust in newspapers per year, we need to determine how much the percentage changed from 1999 to 2004.

First, we calculate the change in percentage by subtracting the initial percentage from the final percentage: 28% - 40% = -12%.

Next, we divide the change in percentage by the number of years: -12% / 5 years = -2.4%.

Therefore, the average rate of change of the percentage of people who have trust in newspapers per year is -2.4% per year.