Question

Last year there was 380 students at woodland middle school. This year, the student population will increase by 5%. What will be the school's increased students population?

Answer 1

399

Explanation:

To find the population in a future year, use the formula:

`A = P (1+/-r)^t`

where A is the amount, p is the starting population, r is 5% or 0.05, and t is the number of years.

Since the population is increasing it is addition. Here we are finding A. Substitute P =380, r=0.05 and t=1.

`A=P(1+r)^t\\A=380(1+0.05)^1\\A=380(1.05)\\A=399 \\`