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?

399

Step-by-step explanation:

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

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.

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you