In 1990, there were 10.8 thousand radio stations on the air in the United States. In 1998, there were 12.6 thousand. What was the average rate of change per year in the number of radio stations in the United States from 1990 to 1998?

Question

In 1990, there were 10.8 thousand radio stations on the air in the United States.  In 1998, there were 12.6 thousand.  What was the average rate of change per year in the number of radio stations in the United States from 1990 to 1998?

anonymous · Answer

The total number of radio stations added divided by the total number of years will give you the average rate of change per year.

anonymous · Answer

12.6 - 10.8 = 1.8 thousand radio stations added

1998 - 1990 = 10 years

1800/10 = 180 radio stations per year

anonymous · Answer

satellite could i use you for one question?