Aformula for finding the area of a rectangle is a=l? w. if you know the area (a) and length (l) of a rectangle, which formula can you use to find the width (w)?

Step-by-step explanation:

The formula to find the area of a rectangle is: , where is width and is length.

So, if we knoe the area and the length , we can find the width with the formula

You can get this answer by using the defintion of area, which is the first equation, and isolating .

Remember, when we want to move a factor to the other side of the equalty, we must pass it with the opposite operation. So, in this case, width was multiplying, and it passed to the other side dividing.

Therefore, the answer here is

50- 250 is correct i did that one too

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