document.write( "Question 1111625: Bert can clean the sidewalks around the building in 2hours by using blower.Dennis can do the same job in 8 hours using a broom.how long it take them working together. \n" ); document.write( "

Algebra.Com's Answer #726610 by ikleyn(52803) $\"\"$ $\"About$

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document.write( "Bert   makes    of the job per hour.  It is his rate of work.\r\n" );
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document.write( "Dennis makes    of the job per hour.  It is his rate of work.\r\n" );
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document.write( "Working together, they make   +  of the job per hour.\r\n" );
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document.write( "    When they work together, their rates are summing up !\r\n" );
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document.write( " +  =  +  = .\r\n" );
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document.write( "So, working together, they do   of the job per hour.\r\n" );
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document.write( "Hence, it will take them    hours = 8*12 minutes = 96 minutes = 1 hour and 36 minutes to complete the job working together.\r\n" );
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\n" ); document.write( "It is a typical joint work problem.\r
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\n" ); document.write( "\n" ); document.write( "There is a wide variety of similar solved joint-work problems with detailed explanations in this site. See 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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