document.write( "Question 1056352: If Patricia were to paint her living room alone, it would take 8 hours. Her sister Denise could do the job in 9 hours. How long would it take them working together? \n" ); document.write( "
Algebra.Com's Answer #671500 by stanbon(75887)\"\" \"About 
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If Patricia were to paint her living room alone, it would take 8 hours. Her sister Denise could do the job in 9 hours. How long would it take them working together?
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\n" ); document.write( "Pat DATA::
\n" ); document.write( "time = 8 hrs/job ; rate = 1/8 job/hr
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\n" ); document.write( "Denise DATA:
\n" ); document.write( "time = 9 hrs/job ; rate = 1/9 job/hr
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\n" ); document.write( "Together DATA::
\n" ); document.write( "time = x hrs/job ; rate = 1/x job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/8 + 1/9 = 1/x
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\n" ); document.write( "9x + 2x = 8*9
\n" ); document.write( "11x = 76
\n" ); document.write( "x = 6.9 hrs = 6hr 54sec
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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