document.write( "Question 271110: Jeff can weed the garden in 4 h. His wife Brenda takes the same amount of time. After they worked together for 1 h, their son Rory helped them finish in 1/2 h. How long would it have taken Rory by himself? this is another problem that I'm having difficulty with. I know the answer is 2 hrs, but I'm not sure how to set up the equation. \n" ); document.write( "
Algebra.Com's Answer #711479 by amalm06(224)\"\" \"About 
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(1/4 + 1/4)(1) + (1/4 + 1/4 + 1/x)(0.5)=1\r
\n" ); document.write( "\n" ); document.write( "1/2 + [1/2 + 1/x](0.5)=1\r
\n" ); document.write( "\n" ); document.write( "[1/2 + 1/x](0.5)=1/2\r
\n" ); document.write( "\n" ); document.write( "1/2 + (1/x)=1\r
\n" ); document.write( "\n" ); document.write( "1/x = 1/2\r
\n" ); document.write( "\n" ); document.write( "x=2 hrs
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