Lin runs 5 laps around a track in 6 minutes. How many minutes per lap is that?

Fill in the blank with decimal form

They got the 1.2 minutes by taking the total number of minutes (6) and dividing them by the number of laps run (5).  So 6 divided by 5 gives you the 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