King middle school has 1200 students. each student takes 5 classes a day. each teacher teaches 4 classes. each class has 30 students and 1 teacher. how many teachers are there at king middle school?

5 x 1200 = 6000

6000/ 30 = 200

t for teachers

40t = 200

t = 50

50 teachers

b. astronomers

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