document.write( "Question 602759: Together, Stanley and Elsie can mow a lawn in 3 hours. It takes elsie 5 hours to mow the lawn alone. How long would it take Stanley working by himself? \n" ); document.write( "
Algebra.Com's Answer #380397 by stanbon(75887)\"\" \"About 
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Together, Stanley and Elsie can mow a lawn in 3 hours. It takes elsie 5 hours to mow the lawn alone. How long would it take Stanley working by himself?
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\n" ); document.write( "Together rate: 1/3 job/hr
\n" ); document.write( "Elsie rate: 1/5 job/hr
\n" ); document.write( "Stan rate: 1/x job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/5 + 1/x = 1/3
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\n" ); document.write( "Multiply thru by 15x to get:
\n" ); document.write( "3x + 15 = 5x
\n" ); document.write( "2x = 15
\n" ); document.write( "x = 7.5 hrs. (Stan's time to do the job alone)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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