document.write( "Question 1207767: A 5-horsepower (hp) pump can empty a pool in 5 hours.A smaller, 2-hp pump empties the same pool in 8 hours. The pumps are used together to begin emptying this pool.After two hours, the 2-hp pump breaks down. How long will it take the larger pump to empty the pool? \n" ); document.write( "
Algebra.Com's Answer #845825 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! 5 hp pump does one job in 5 hour. \n" ); document.write( "speed, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2 hp pump does one job in 8 hours \n" ); document.write( "speed, \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Both together for 2 hours and then only the 5 hp pump for unknown time x. One job to complete.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply both sides by 40, simplify, and solve for x. \n" ); document.write( " |