SOLUTION: a rectangular pool is 25 ft long and 11 feet wide. the water in the pool has a depth of 4 ft. if 1ft to the 3 is = 7.5 gallons. How many gallons of water is needed to fill the pool

Algebra ->  Surface-area -> SOLUTION: a rectangular pool is 25 ft long and 11 feet wide. the water in the pool has a depth of 4 ft. if 1ft to the 3 is = 7.5 gallons. How many gallons of water is needed to fill the pool      Log On


   

Question 973484: a rectangular pool is 25 ft long and 11 feet wide. the water in the pool has a depth of 4 ft. if 1ft to the 3 is = 7.5 gallons. How many gallons of water is needed to fill the pool completely? Work it in paper and send a pic or help!!
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
Let y be the depth of the pool.


Pool Capacity
25%2A11%2Ay=261y%2Aft%5E3

Water Volume
25%2A11%2A4=110%2Aft%5E3

Empty Volume still to be filled, %28261y-110%29%2Aft%5E3.
As gallons unit,
highlight%28%28261y-110%29%2A%287.5%2F3%29%29

Still a variable expression because not enough information given to find volume capacity or height of the pool dimension.