document.write( "Question 808858: Susan can plant her garden in 5 hours working alone. A friend can do the same job in 8 hours? How long would t take them if they worked together?\r
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Algebra.Com's Answer #487243 by josmiceli(19441)\"\" \"About 
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Add their rates of working to get their
\n" ); document.write( "rate working together
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\n" ); document.write( "Susan's rate:
\n" ); document.write( "( 1 garden planted ) / ( 5 hrs )
\n" ); document.write( "Friend's rate:
\n" ); document.write( "( 1 garden planted ) / ( 8 hrs )
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\n" ); document.write( "Let \"+t+\" = the time in hours to
\n" ); document.write( "plant a garden working together
\n" ); document.write( "\"+1%2F5+%2B+1%2F8+=+1%2Ft+\"
\n" ); document.write( "Multiply both sides by \"+40t+\"
\n" ); document.write( "\"+8t+%2B+5t+=+40+\"
\n" ); document.write( "\"+13t+=+40+\"
\n" ); document.write( "\"+t+=+3.077+\"
\n" ); document.write( "\"+.077%2A60+=+4.62+\"
\n" ); document.write( "It will take them about 3 hrs 4.6 min
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