En un salon de 35 alumnos se tiene que hay 4 varones por cada 3 mujeres ? cuantas mujeres hay en el el salon de clases?

15

Step-by-step explanation:

la proporción es 4: 3 y si sigues agregando 4: 3, eventualmente llegarás a 20:15 y 20 + 15 = 35

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note: the best i know.

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