document.write( "Question 621720: A hose takes 15 minutes to fill a swimming pool and the drain empties the pool in twenty minutes. How long will it take to fill the pool if the drain is accidentally left open?\r
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document.write( "I need to know how you got the answer also! Please help!! \n" );
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Algebra.Com's Answer #390927 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A hose takes 15 minutes to fill a swimming pool and the drain empties the pool in twenty minutes. How long will it take to fill the pool if the drain is accidentally left open? \n" ); document.write( "----------------------- \n" ); document.write( "Each minute, the hose adds 1/15 of the pool, and 1/20 is lost out the drain. \n" ); document.write( "--> (1/15 - 1/20) per minute net gain \n" ); document.write( "= 1/60 of the pool per minute \n" ); document.write( "--> 60 min/pool \n" ); document.write( "60 minutes to fill \n" ); document.write( " \n" ); document.write( " |