The average attendance at a local high school this year was 950 students. Each year the attendance decreases at a rate of 5% per year. What will the average attendance be in three years?

Number of students= 820.64 = 821

Step-by-step explanation:

Giving the following information:

Current attendance= 950 students

Number of periods= 3 years

Decrease rate= 5%

To calculate the number of students in attendance in 3 years, we need to use the following formula:

Number of students= current attendance*(1+decrease rate)^(-n)

Number of students= 950*(1.05^-3)

Number of students= 820.64 = 821

a² + b²= c²

24² + 7² = c²

c= 25