posted by Taylor on .
You installed a bookshelf on the wall to organize some of your books. The books that you absolutely want on the shelf weigh a total 6 3/4 pounds. The bookshelf can handle no more than 9 pounds. You plan on filling the rest of the shelf with your paperbacks that each weigh about 1/8 pound. Assuming you won't run out of room,how many paperback books can you add to the shelf
(9 - 6.75) / 0.125 = ?