document.write( "Question 339147: if anna can paint a house in 4 hours and joe can paint a house in 6 hours. how long will it take them to do it together? \n" ); document.write( "
Algebra.Com's Answer #243089 by nerdybill(7384)\"\" \"About 
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if anna can paint a house in 4 hours and joe can paint a house in 6 hours. how long will it take them to do it together?
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\n" ); document.write( "Let x = number of hours working together
\n" ); document.write( "then
\n" ); document.write( "x(1/4 + 1/6) = 1
\n" ); document.write( "multiplying both sides by 24:
\n" ); document.write( "x(6 + 4) = 24
\n" ); document.write( "10x = 24
\n" ); document.write( "x = 2.4 hours
\n" ); document.write( "or
\n" ); document.write( "x = 2 hours and 24 minutes\r
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