document.write( "Question 1150249: a small coputer can process marketing data in 30 hours. to speed up processing anoher can do same work in 12 hours. how long if both work together \n" ); document.write( "
Algebra.Com's Answer #771618 by ikleyn(52847)\"\" \"About 
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document.write( "First comp does  \"1%2F30\"  of the job per hour.\r\n" );
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document.write( "Second comp does  \"1%2F12\"  of the job per hour.\r\n" );
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document.write( "Working together, both comps do  \"1%2F30\" + \"1%2F12\" = \"2%2F60+%2B+5%2F60\" = \"7%2F60\"  of the job per hour.\r\n" );
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document.write( "Hence, these two comps will complete the job in  \"60%2F7\" hours  = \"8\"\"4%2F7\" hours working together.    ANSWER\r\n" );
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\n" ); document.write( "\n" ); document.write( "If you want more entertainments  (I mean if you want to see other similar solved problems),  then look into the lessons\r
\n" ); document.write( "\n" ); document.write( "    - Using Fractions to solve word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Solving more complicated word problems on joint work \r
\n" ); document.write( "\n" ); document.write( "    - Selected joint-work word problems from the archive \r
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\n" ); document.write( "\n" ); document.write( "Read them and get be trained in solving joint-work problems.\r
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\n" ); document.write( "\n" ); document.write( "Also,  you have this free of charge online textbook in ALGEBRA-I in this site\r
\n" ); document.write( "\n" ); document.write( "    - ALGEBRA-I - YOUR ONLINE TEXTBOOK.\r
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\n" ); document.write( "\n" ); document.write( "The referred lessons are the part of this textbook under the topic
\n" ); document.write( "\"Rate of work and joint work problems\"  of the section  \"Word problems\".\r
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\n" ); document.write( "\n" ); document.write( "Save the link to this online textbook together with its description\r
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\n" ); document.write( "\n" ); document.write( "Free of charge online textbook in ALGEBRA-I
\n" ); document.write( "https://www.algebra.com/algebra/homework/quadratic/lessons/ALGEBRA-I-YOUR-ONLINE-TEXTBOOK.lesson\r
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\n" ); document.write( "\n" ); document.write( "to your archive and use it when it is needed.\r
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