SOLUTION: In my math lab class we are trying to find out how many gallons a 20ft by 45ft pool holds. It's a walk in pool with the pools depth starting at 0ft and going to 15ft.

Question 868939: In my math lab class we are trying to find out how many gallons a 20ft by 45ft pool holds. It's a walk in pool with the pools depth starting at 0ft and going to 15ft.
Answer by rothauserc(4718) (Show Source): You can put this solution on YOUR website!
The first step is to calculate the average depth of the pool.
average depth is (depth at low end + depth at high end) / 2 = (0 + 15) / 2 = 7.5
calculate volume of pool = length * width * average depth * 7.5
note that a cubic foot = 7.5 gallons
volume of pool = 20 * 45 * 7.5 * 7.5 = 50,625 gallons

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