document.write( "Question 1063323: problem given to me is:Yolly can clean the room in 9 minutes and Marie can do it 60 minutes. if Yolly cleans the room for 15 minutes before Marie joins her, how long would it take them to finish? my question is how can i translate it to an equation?
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Algebra.Com's Answer #678416 by ikleyn(52776) $\"\"$ $\"About$

You can put this solution on YOUR website!
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\n" ); document.write( "Yolly can clean the room in 9 minutes and Marie can do it 60 minutes. if Yolly cleans the room for
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document.write( "Yolly rate of work is Yr =  of the job per minute.\r\n" );
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document.write( "Marie rate of work is Mr =  of the job per minute.\r\n" );
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document.write( "When they work together, their combined rate of work is  \r\n" );
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document.write( "     Yr + Mr =  =  = .\r\n" );
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document.write( "Since Yoully just did  of the job before Mary joined her, they together should do only  of the job.\r\n" );
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document.write( "So, the equation for time \"t\" is  = .\r\n" );
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document.write( "Can you solve it and to get the value of \"t\" now ?\r\n" );
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\n" ); document.write( "Hey, by the way, I gave you the scheme of the solution,
\n" ); document.write( "    but I don't like your NUMBERS: I think they are WRONG.\r
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\n" ); document.write( "\n" ); document.write( "        DOUBLE CHECK THEM !\r
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\n" ); document.write( "\n" ); document.write( "                ALL THE ERRORS in this solutions are due TO YOUR NUMBERS !!!
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\n" ); document.write( "\n" ); document.write( "For a wide variety of similar solved joint-work problems with detailed explanations 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
\n" ); document.write( "\n" ); document.write( "in this site.\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 \"Rate of work and joint work problems\" of the section \"Word problems\".\r
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\n" ); document.write( "\n" ); document.write( "Let me ask you a question?\r
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\n" ); document.write( "\n" ); document.write( "Your job was to write 2 lines of a text with numbers, and you failed to do it correctly.\r
\n" ); document.write( "\n" ); document.write( "How can you learn solving problems, if you are not able to write 2 (two !) lines of a text correctly?\r
\n" ); document.write( "\n" ); document.write( "How can you communicate with people, if you are not able to write 2 (two !) lines of a text correctly?\r
\n" ); document.write( "\n" ); document.write( "You want the tutors work for you (and I really worked !), but you failed to provide correct input data?\r
\n" ); document.write( "\n" ); document.write( "I can not understand it ! There is no place in my mind for it !\r
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\n" ); document.write( "\n" ); document.write( "Think about it !\r
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