Use the following information to answer questions 37-39.
Gianna is converting a 12-foot-by-15-foot room in her house to a craft room. Gianna will install tile herself but will have CC Installations build and install the cabinets. The scale drawing shown below displays the location of the cabinets in the craft room (0.25 inch represents 2 feet).
Cabinets will be installed along one of the 12-foot walls from floor to ceiling, and 4 cabinets that are each 3 feet tall will be installed in the middle of the room. These are the only cabinets that will be installed, and each of them will be 2 feet wide and 2 feet deep. CC Installations has given Gianna an estimate of $2,150.00 for building and installing the cabinets.
39. CC Installations’ estimate consists of a $650.00 charge for labor, plus a fixed charge per cabinet. The labor charge and the charge per cabinet remain the same for any number of cabinets built and installed. CC Installations would give Gianna what estimate if the craft room were to have twice as many cabinets as Gianna is planning to have?
Your Answer is
Correct Answer is D
Explanation
First of all, according to the meaning of the question, a total of 12÷2=6 cabinets are installed along the wall, plus the four in the middle, a total of 10 cabinets are installed. Assuming that the installation fee of a cabinet is x, there are 10x+650 =2150, solve x=150; and now assume that Gianna installed more than double the number of cabinets, that is, 20, then the total cost should be 650+150×20=3650