document.write( "Question 694392: If a painter can paint a house in 6 hours and his apprentice can paint the same sized house in 9 hours, how long will it take for them to paint a house if they worked together?\"
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Algebra.Com's Answer #427853 by checkley79(3341)\"\" \"About 
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1/6+1/9=1/x
\n" ); document.write( "find the lcd (18)
\n" ); document.write( "(3+2)/18=1/x
\n" ); document.write( "5/18=1/x cross multiply.
\n" ); document.write( "5x=18
\n" ); document.write( "x=18/5
\n" ); document.write( "x=3.6 hours.\r
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