Question

15. The formula for the surface area of a rectangular solid is S 2HW + 2LW + 2LH, where S, H, W, and L represent surface area, height, width, and length, respectively. Solve this formula for W.

Answer 1

The answer is

`W=(S-2LH)/(2H+2L)`

Explanation:

The formula for the area of a solid rectangle is

`S = 2HW+2LW+2LH`

Solve it for W

`2HW+2LW=S-2LH\\\\W(2H+2L)=S-2LH\\\\W=(S-2LH)/(2H+2L)`