document.write( "Question 619220: Joe can do a job in 12 days after he has worked for 4 days he is joined by Casey and it takes them 2 days working together to finish the job. How long would it take Casey to do the whole job herself. \r
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\n" ); document.write( "Joe time + Casey time = both working together, but they only do 1/2 the job in a day
\n" ); document.write( "4(1/12) + 1/X = (1 - 4/12)/2
\n" ); document.write( "I get an answer of no solution so my problem must be set up wrong. Can you help?
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Algebra.Com's Answer #389475 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
Joe finished 1/3 of the job before Casey came, so they finished 2/3 together\r
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\n" ); document.write( "\n" ); document.write( "(2/12) + (2/C) = 2/3\r
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\n" ); document.write( "\n" ); document.write( "in the 2 days they work together, Joe does another 1/6 of the job (so he does 1/2 total)
\n" ); document.write( "___ this means Casey does 1/2 of the job in 2 days
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