An open box is to be made from cutting squares of side "s" from each corner of a piece of cardboard 25" by 30".

Question

Write an expression for the volume, V, of the box in terms of s.

-I have no idea where to start on this. I know V=lwh (length*width*height), but what about "s" and the 25x30 piece? I'm so confused. Help please?

Thank you so much! :)

Answer 1

Isn't height s? and length 30-2s, and width 25-2s?

Draw a figure and see.

Answer 2

25x2+ 30x