document.write( "Question 146772: This Is a work problem. Please help me solve.\r
\n" ); document.write( "\n" ); document.write( "If a painter can paint a house in 12 days and another painter can paint
\n" ); document.write( "the same house in 8 days, how long will it take the painters together paint the
\n" ); document.write( "house?\r
\n" ); document.write( "\n" ); document.write( " Please show steps.
\n" ); document.write( " thanks,
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Algebra.Com's Answer #107179 by nerdybill(7384)\"\" \"About 
You can put this solution on YOUR website!
First painter's rate: 1 house per 12 hours or 1/12
\n" ); document.write( "Second painter's rate: 1 house per 8 hours or 1/8
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\n" ); document.write( "Let x = combined time it would take BOTH to paint a single house
\n" ); document.write( "then
\n" ); document.write( "(1/12)x + (1/8)x = 1
\n" ); document.write( "multiplying both sides by a \"common denominator\" (96) we get:
\n" ); document.write( "96[(1/12)x + (1/8)x] = 96*1
\n" ); document.write( "8x + 12x = 96
\n" ); document.write( "20x = 96
\n" ); document.write( "x = 96/20
\n" ); document.write( "x = 4.8 hours
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\n" ); document.write( "or (since there are 60 minutes per hour)
\n" ); document.write( "x = 4 hrs (.8*60) mins
\n" ); document.write( "x = 4 hrs 48 mins
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