document.write( "Question 1047446: 3. Keith and Nancy were able to wash a boat in 6 hours together. It takes Nancy 9 hours to do the same thing alone. Without help, how long would it take Keith to do the same thing? \n" ); document.write( "
Algebra.Com's Answer #662997 by josgarithmetic(39617)\"\" \"About 
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WASH A BOAT is one job, and this is done in some amounts of time. RATE UNIT should be as \"JOB%2FHOURS\". Agents working together on a job work at the sum of their rates.\r
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\n" ); document.write( "\n" ); document.write( "\"1%2Fk%2B1%2F9=1%2F6\"
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