document.write( "Question 786580: Pat and Jen volunteer at the library. Pat can shelve a full cart of books 12 minutes faster than Jen. If they work together, they can shelve a full cart in 100 minutes. How log does it take Jen to shelve a full cart by herself? (Give an exact answer rounded to the nearest minute)\r
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document.write( "I tried making a table where p is the value of pats time represented as \"x\" and j is the value of jens time represented as \"x+12\". I made a table that I would normally use for these kinds of promlems but I keep getting an odd number and I cant seem to figure it out \n" );
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Algebra.Com's Answer #477913 by josmiceli(19441)![]() ![]() You can put this solution on YOUR website! I don't use tables, but my equations can \n" ); document.write( "easily be put into a table \n" ); document.write( "--------------------- \n" ); document.write( "Add their rates to get rate working together \n" ); document.write( "Jen's rate: ( 1 cart ) / ( x min ) \n" ); document.write( "Pat's rate: ( 1 cart ) / ( x - 12 min ) \n" ); document.write( "Together: ( 1 cart ) / ( 100 min ) \n" ); document.write( "--------------------------- \n" ); document.write( " \n" ); document.write( "Multiply both sides by \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "Use quadratic formula \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "In hours: \n" ); document.write( " \n" ); document.write( "It would take Jen 3 hrs and 26 min \n" ); document.write( "----------------------------- \n" ); document.write( "check: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "OK\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |