document.write( "Question 487207: Joan can weed the garden in 40 min and her mother can weed it in 60 min. How long would it take them working together??? \n" ); document.write( "
Algebra.Com's Answer #332989 by jorel1380(3719)\"\" \"About 
You can put this solution on YOUR website!
1/40+1/60=1/t
\n" ); document.write( "3/120+2/120=1/t
\n" ); document.write( "5/120=1/t
\n" ); document.write( "5t=120
\n" ); document.write( "t=120/5=24 minutes working together..
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