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)\"\" \"About 
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5 hp pump does one job in 5 hour.
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\n" ); document.write( "\n" ); document.write( "2 hp pump does one job in 8 hours
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\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
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\n" ); document.write( "\n" ); document.write( "\"2%281%2F5%2B1%2F8%29%2B%281%2F5%29%28x%29=1\"----------a good starting equation.\r
\n" ); document.write( "\n" ); document.write( "Multiply both sides by 40, simplify, and solve for x.
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