A jar of water weighs 15 pounds. When 0.5 of the water is poured out, the weight of the remaining water and the jar is 8.75 pounds. How much does the jar weigh?
half of water = 15 - 8.75 = 6.25
Therefore water weighs 2 * 6.25.
15 - (2*6.25) = ?
Therefore water weighs 2 * 6.25.
15 - (2*6.25) = ?