document.write( "Question 760113: I have no idea how to go about this problem...or where to start. Help me please :(\r
\n" ); document.write( "\n" ); document.write( "Sarah can build a fence in 9 hours. Joe can do the same in 6 hours. How long would it take them working together, to build the fence? (answer in hours)
\n" ); document.write( "t=time together
\n" ); document.write( "1=the completed job
\n" ); document.write( "t/9=fraction of fence built by Sarah in t hours
\n" ); document.write( "t/6=fraction of fence built by Joe in t hours.
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Algebra.Com's Answer #462441 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
you are sooooooo close to being done, all you need is\r
\n" ); document.write( "\n" ); document.write( "t/9 + t/6 = 1
\n" ); document.write( "6t + 9t = 54
\n" ); document.write( "15t = 54
\n" ); document.write( "t = 3.6 hours
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