document.write( "Question 305005: If Mary can rake leaves in 6 hours and Joe can do it in 7 hours, how long will it take them to do the job together? \n" ); document.write( "

Algebra.Com's Answer #218427 by richwmiller(17219) $\"\"$ $\"About$

You can put this solution on YOUR website!
x/6+x/7=1
\n" ); document.write( "7x+6x=42
\n" ); document.write( "13x=42
\n" ); document.write( "x=42/13
\n" ); document.write( "x=3 3/13 hours
\n" ); document.write( "check
\n" ); document.write( "(42/13)/6+(42/13)/7=1
\n" ); document.write( "7/13+6/13=1
\n" ); document.write( "13/13=1
\n" ); document.write( "ok
\n" ); document.write( " \n" ); document.write( "

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