Contemporary Mathematics for Business and Consumers 7th Edition by Robert Brechner ,George Bergeman

تمرين 61

Estimate the following by rounding each number to hundreds; then divide to get the exact answer.
You are the owner of Decorama Flooring. Todd and Claudia have asked you to give them an estimate for tiling four rooms of their house. The living room is 15 feet × 23 feet, the dining room is 12 feet × 18 feet, the kitchen is 9 feet × 11 feet, and the study is 10 feet × 12 feet.
a. How many square feet of tile are required for each room? (Multiply the length by the width.)
b. What is the total number of square feet to be tiled?
c. If the tile for the kitchen and study costs $4 per square foot and the tile for the living and dining rooms costs $3 per square foot, what is the total cost of the tile?
d. If your company charges $2 per square foot for installation, what is the total cost of the tile job?
e. If Todd and Claudia have saved $4,500 for the tile job, by how much are they over or under the amount needed?