document.write( "Question 1105001: Russ started to mow the lawn,a task that usually takes him 40 minutes.After he had been working for 15 minutes, his friend Jay came along with his mower and began to help Russ. Working together, they finished the lawn in 10 minutes.How long would it taken Jay to mow the lawn by himself. \n" ); document.write( "

Algebra.Com's Answer #719749 by ikleyn(52914) $\"\"$ $\"About$

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document.write( "The Russ' rate of work is  of the job per  minute.\r\n" );
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document.write( "After he had been working for 15 minutes, he had done  =  of the job;  Hence,  of the job remained.\r\n" );
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document.write( "Then Russ and Joe completed the work in 10 minutes; hence, their combined rate of work was   =  of the job per minute.\r\n" );
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document.write( "It means that the Jay's individual rate of work was the difference  -  =  -  =  of the job per minute.\r\n" );
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document.write( "Therefore, it would take Jay  minutes = 26 minutes and 40 seconds to complete the job working alone.\r\n" );
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\n" ); document.write( "\n" ); document.write( "Solved.\r
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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
\n" ); document.write( "
\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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