document.write( "Question 887483: a pump can empty a small pond in 5hr. another more efficient pump can do the job in 3hr. how long would it take to empty the pond if both pumps were used? \n" ); document.write( "
Algebra.Com's Answer #536652 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! This combination of rates is simple addition. One job is \"empty the pond\".\r \n" ); document.write( "\n" ); document.write( " |