A bookcase is to have four shelves, including the top. The height of the bookcase is to be 2 feet more than the width and only 20 feet of lumber is available. Use an equation to determine the width and height of the bookcase. Solve for length and weight. Does any one know how to solve this problem?

Question

anonymous · Answer

does the bottom count as  a shelf?

anonymous · Answer

yes

anonymous · Answer

|dw:1333057658617:dw|

anonymous · Answer

$$x+x+x+x+x+2+x+2=20$$
$$6x+2=20$$
$$6x=18$$
$$x=18\div 6=3$$

anonymous · Answer

so what is the length and weight