Answer:
The carpenter will need 3 6-foot long boards in order to make the 8 shelves.
Step-by-step explanation:
Given that a carpinter is installing shelves in two offices, each office will have 4 shelves, and the wood the carpinter wants to use comes in 6foot long boards, the measure of each shelf being 2 1/4 feet long, to determine how many boards he does need, the following calculation must be performed:
1/4 = 0.25
(2 x 4 x 2.25) / 6 = X
(8 x 2.25) / 6 = X
18/6 = X
3 = X
Thus, the carpenter will need 3 6-foot long boards in order to make the 8 shelves.
