Zander, Marivel, and Sherlyn ran for class president. Zander won 31% of the votes, and Marivel won 0.33 of the votes. If all the students in the class voted, which fraction represents Sherlyn's portion of all votes?

associative property of multiplication

2500

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