Collins middle school has 312 six grade students at this is great student is 40% of the total school how many students are in the middle school

780 students

Step-by-step explanation:

Take 40% as 0.4

Then do 312÷0.4= 780 students

780

Step-by-step explanation:

Let x be total of the students in the school.

Then ,this X is equivalent to 100%

So, 40=312 what about 100

This gives you 780

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb