document.write( "Question 1199446: If 20 men can lay 36 m of pipe in 8 hours. How long would 25 men take to lay the next 54 m of pipe \n" ); document.write( "
Algebra.Com's Answer #833325 by josgarithmetic(39617)\"\" \"About 
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N, how many workers
\n" ); document.write( "R, work rate for 1 worker
\n" ); document.write( "T, time of working
\n" ); document.write( "W, amount of work\r
\n" ); document.write( "\n" ); document.write( "\"highlight_green%28%28NR%29T=W%29\"----basic rule\r
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\n" ); document.write( "\n" ); document.write( "let r be the work rate of any one man, and x be the time asked for.
\n" ); document.write( "\"system%2820r%2A8=36%2C25r%2Ax=54%29\"\r
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\n" ); document.write( "\n" ); document.write( "If you divide the second equation by the first equation,..........\r
\n" ); document.write( "\n" ); document.write( "\"%2825x%29%2F%2820%2A8%29=54%2F36\"\r
\n" ); document.write( "\n" ); document.write( "\"%285%2F4%29%281%2F8%29x=%289%2F9%29%286%2F4%29\"\r
\n" ); document.write( "\n" ); document.write( "\"%285%2F4%29%281%2F8%29x=3%2F2\"\r
\n" ); document.write( "\n" ); document.write( "\"x=%283%2F2%29%288%29%284%2F5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"x=3%2A4%2A4%281%2F5%29\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28x=9%263%2F5%29\"
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