document.write( "Question 605946: If I type a page in x minutes and my friend types a page in x-1 minutes how long to type 100 pages together? \n" ); document.write( "
Algebra.Com's Answer #381878 by jim_thompson5910(35256)\"\" \"About 
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1/x + 1/(x-1) = 1/t\r
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\n" ); document.write( "\n" ); document.write( "t(x-1) + tx = x(x-1)\r
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\n" ); document.write( "\n" ); document.write( "t(x-1+x) = x(x-1)\r
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\n" ); document.write( "\n" ); document.write( "t(2x-1) = x(x-1)\r
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\n" ); document.write( "\n" ); document.write( "t = (x(x-1))/(2x-1)\r
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\n" ); document.write( "\n" ); document.write( "So working together, you both can type out a page in (x(x-1))/(2x-1) minutes.\r
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\n" ); document.write( "\n" ); document.write( "So 100 pages will take (100x(x-1))/(2x-1) minutes\r
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