Question

Write a linear equation to find the average number of music cassettes sold in any year after 1999 The rate of change is -27 million per year. In the first year, the number of music cassettes sold was 124 million. Let N= the number of millions of music cassettes sold. Letx=the number of years since 1999. An equation is N=-27x+124

Answer 1

The linear equation to find the average number of music cassettes sold in any year after 1999 is N = -27x + 124, where N represents the number of millions of music cassettes sold and x represents the number of years since 1999.

Step-by-step explanation:

The linear equation to find the average number of music cassettes sold in any year after 1999 can be represented as:

N = -27x + 124

Where N represents the number of millions of music cassettes sold, and x represents the number of years since 1999.

For example, if we want to find the average number of music cassettes sold 5 years after 1999, we can substitute x = 5 in the equation:

N = -27(5) + 124 = -135 + 124 = -11

Therefore, the average number of music cassettes sold 5 years after 1999 would be approximately -11 million.