document.write( "Question 715146: Danielle can harvest a field in 16 hours. Kathryn can harvest the same field in 12 hours. Find how long it would take them if they worked together. \n" ); document.write( "
Algebra.Com's Answer #439238 by Edwin McCravy(20054)\"\" \"About 
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document.write( "Let the answer be x.  That is, it would take them x hours if they worked together. \r\n" );
document.write( "So their harvesting rate is 1 field per x hours, \"%221_field%22%2F%22x_hr%22\" or \"1%2Fx\"\"field%2Fhour\".\r\n" );
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\n" ); document.write( "Danielle can harvest a field in 16 hours.
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document.write( "So Danielle's harvesting rate is 1 field per 16 hours, \"%221_field%22%2F%2216_hr%22\" or \"1%2F16\"\"field%2Fhour\".\r\n" );
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\n" ); document.write( "Kathryn can harvest the same field in 12 hours.\r
\n" ); document.write( "\n" ); document.write( "So Kathryn's harvesting rate is 1 field per 12 hours, \"%221_field%22%2F%2212_hr%22\" or \"1%2F12%7D%7D%7B%7B%7Bfield%2Fhour\".
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\n" ); document.write( "Find how long it would take them if they worked together.
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document.write( "The equation comes from\r\n" );
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document.write( "               \"%22%22%2B%22%22\"\"%22%22=%22%22\" \r\n" );
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document.write( "                              \"1%2F16\"\"%22%22%2B%22%22\"\"1%2F12\"\"%22%22=%22%22\"\"1%2Fx\"\r\n" );
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document.write( "Multiply that equation through by the LCD = 48x  and solve for x and you'll \r\n" );
document.write( "get \"48%2F7\" or \"6%266%2F7\" hours.\r\n" );
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document.write( "Edwin
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