document.write( "Question 636083: Please help me to solve this word problem:
\n" ); document.write( "Sally was able to paint a room in 4 hours and Joe did the same job in 6 hours, how long will it take the two of them to do it together? Thank you in anticipation of your answer. \n" ); document.write( "
Algebra.Com's Answer #400711 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
1/4 + 1/6 = 1/t\r
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\n" ); document.write( "\n" ); document.write( "(1/4)(3/3) + (1/6)(2/2) = 1/t\r
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\n" ); document.write( "\n" ); document.write( "(1*3)/(4*3) + (1*2)/(6*2) = 1/t\r
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\n" ); document.write( "\n" ); document.write( "3/12 + 2/12 = 1/t\r
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\n" ); document.write( "\n" ); document.write( "(3+2)/12 = 1/t\r
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\n" ); document.write( "\n" ); document.write( "5/12 = 1/t\r
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\n" ); document.write( "\n" ); document.write( "5t = 12*1\r
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\n" ); document.write( "\n" ); document.write( "5t = 12\r
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\n" ); document.write( "\n" ); document.write( "t = 12/5\r
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\n" ); document.write( "\n" ); document.write( "t = 2 2/5\r
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\n" ); document.write( "\n" ); document.write( "So it will take 2 2/5 hours, or 2.4 hours (which is 2 hours, 24 minutes) for them to do it together. \n" ); document.write( "
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