SOLUTION: A circular swimming pool with a diameter of 30 ft and a horizontal bottom contains 22,000 gallons of water. What is the depth of the water in the pool? (one cubic foot contains app

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Question 50642This question is from textbook College Algebra
: A circular swimming pool with a diameter of 30 ft and a horizontal bottom contains 22,000 gallons of water. What is the depth of the water in the pool? (one cubic foot contains approximately 7.5 gallons of water.)
Book Answer: 4.15 ft This question is from textbook College Algebra

Answer by checkley71(8403) About Me  (Show Source):
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AREA=PI*R^2 OR AREA=3.14*15^2 OR AREA=3.14*225 OR AREA=706.5 SQFT FOR THE SURFACE AREA OF THE POOL.
706.5*X*7.5=22,000 OR 5,298.75X=22,000 OR X=22,000/5,298.75 OR X=4.15 FT