document.write( "Question 446855: one technician can wire a security alarm in 4 h, whereas it takes 6 hr for a second technician to do the same job. after working alone for 2 h, the first technician quit. how long will it take the second technician to complete the wiring? \n" ); document.write( "
Algebra.Com's Answer #307723 by robertb(5830)\"\" \"About 
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\"2%2F4+%2B+x%2F6+=+1\"
\n" ); document.write( "==> \"x%2F6+=+1+-+2%2F4+=+1-1%2F2+=+1%2F2\"
\n" ); document.write( "==> \"x%2F6+=+1%2F2\", or x = 3 more hours.
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