Solve the Problem $= 8.0 \mathrm { ft }$ ; Height $= 9.0 \mathrm { ft }$

question 50

Multiple Choice

Solve the problem.
-A bookcase is to be constructed as shown in the figure below. The height of the bookcase is 4 feet longer than the length of a shelf. If 20 feet of lumber is available for the entire unit (including the
Shelves, but NOT the back of the bookcase) , find the length and height of the unit.

• A) length \(= 8.0 \mathrm { ft }\); height \(= 9.0 \mathrm { ft }\)
• B) length \(= 2 \mathrm { ft }\); height \(= 8 \mathrm { ft }\)
• C) length \(= 2 \mathrm { ft }\); height \(= 6 \mathrm { ft }\)
• D) length \(= 3 \mathrm { ft }\); height \(= 7 \mathrm { ft }\)