document.write( "Question 593934: If diana can finish a job in 8 hours and natalie can do a job in 10 hours what fraction of the job would be completed if they worked together for 2 hours? \n" ); document.write( "
Algebra.Com's Answer #376542 by AnlytcPhil(1807)\"\" \"About 
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If diana can finish a job in 8 hours and natalie can do a job in 10 hours what fraction of the job would be completed if they worked together for 2 hours?
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document.write( "Make this chart\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana\r\n" );
document.write( "Natalie\r\n" );
document.write( "Together\r\n" );
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\n" ); document.write( ">>...Diana can finish a job in 8 hours...<<
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document.write( "That says Diana can finish ONE job in 8 hours so we fill 1 in\r\n" );
document.write( "for the number of jobs or fraction thereof, and 8 for the\r\n" );
document.write( "number of hours:\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8\r\n" );
document.write( "Natalie\r\n" );
document.write( "Together\r\n" );
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\n" ); document.write( ">>...Natalie can do a job in 10 hours...<<
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document.write( "That says Natalie can finish ONE job in 10 hours so we fill 1 in\r\n" );
document.write( "for the number of jobs or fraction thereof, and 10 for the\r\n" );
document.write( "number of hours:\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8\r\n" );
document.write( "Natalie          1                10 \r\n" );
document.write( "Together\r\n" );
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document.write( "Next we filli in the rates in jobs/hour by dividing the number of\r\n" );
document.write( "jobs by the hours.\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8          1/8\r\n" );
document.write( "Natalie          1                10         1/10 \r\n" );
document.write( "Together\r\n" );
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document.write( "To find their rate together we just add their rates (sort of like \r\n" );
document.write( "adding the rate of the river to the rate of the boat in other word\r\n" );
document.write( "problems.)\r\n" );
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document.write( "So to get their together rate we add \r\n" );
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document.write( "1/8 + 1/10 = 5/40 + 4/40 = 9/40 jobs/hour\r\n" );
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document.write( "So we fill that in for their together rate.\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8          1/8\r\n" );
document.write( "Natalie          1                10         1/10 \r\n" );
document.write( "Together                                     9/40\r\n" );
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\n" ); document.write( ">>...what fraction of the job would be completed if they worked
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document.write( "Fill in 2 hours for the time together:\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8          1/8\r\n" );
document.write( "Natalie          1                10         1/10 \r\n" );
document.write( "Together                           2         9/40\r\n" );
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document.write( "To find the fraction of a job just multiply jobs/hour by hours.\r\n" );
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document.write( "         2 × (9/40) = 18/40 = 9/20.\r\n" );
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document.write( "Answer: 9/20ths\r\n" );
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document.write( "The finished chart:\r\n" );
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document.write( "            Number of jobs       Time         Rate\r\n" );
document.write( "            or fraction           in           in\r\n" );
document.write( "              thereof            hours      jobs/hour\r\n" );
document.write( "Diana            1                 8          1/8\r\n" );
document.write( "Natalie          1                10         1/10 \r\n" );
document.write( "Together       9/20                2         9/40\r\n" );
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document.write( "Edwin
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