(4- 1/4) / ( 2- 1/2) = ?

First solve separately:

4-1/4= 3 3/4

and 2-1/2= 1 1/2

then convert to improper

12/4 divided by 3/2---switch the sides for the latter

12/4 x 2/3= 2

Step-by-step explanation:

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