A barrel of crude oil contains about 5.61 cubic feet of oil. How many barrels of oil are contained in 1 mile (5280 feet) or a pi
peline that has an inside diameter of 6 inches and is complete filled with oil? How many is “1 mile” of oil in this pipeline worth at a price of $100 per barrel?
Dear Ajtocute, let's have x=9 Multiply 7 by 9 to get 63. Then, you divide 63 by 7 to get back to 9. You just cancel out the multiplication with division.