The ratio of high schools to middle schools in one state is 3 to 8. Given this ratio, which two sets of school counts are possible?
480 high schools, 180 middle schools
440 high schools: 165 middle schools
150 high schools: 400 middle schools
D 120 high schools: 196 middle schools
225 high schools: 600 middle schools

the answaa ihh D

Step-by-step explanation:

right answer above ;)

D: 120 high schools: 196 middle schools     p.s that is a lot of schools

one that is bigger than 3 1/2

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204