document.write( "Question 388900: It takes josh 2/3 as long as it takes beth to paint a wall. if together josh and beth would take 12 hours, how long would it take beth to do the work alone? \n" ); document.write( "
Algebra.Com's Answer #275306 by stanbon(75887)\"\" \"About 
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It takes josh 2/3 as long as it takes beth to paint a wall. if together josh and beth would take 12 hours, how long would it take beth to do the work alone?
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\n" ); document.write( "Let Beth time be \"x\"; her rate is 1/x job/hr
\n" ); document.write( "Then Josh time is (2x)/3 ; his rate is 3/(2x) job/hr
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\n" ); document.write( "Together time = 12 hrs; their rate = 1/12 job/hr
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\n" ); document.write( "Equation:
\n" ); document.write( "rate + rate = together rate
\n" ); document.write( "1/x + 3/(2x) = 1/12
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\n" ); document.write( "Multiply thru by 12x:
\n" ); document.write( "12 + 18 = x
\n" ); document.write( "x = 30 hrs: Beth's time to do the job.
\n" ); document.write( "(2/3)x = 20 hrs; Josh's time to do the job.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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