document.write( "Question 143346: Working together, Jenny and Natalie can mop a warehouse in 5.14 hours. Had she done it alone it would have taken Natalie 12 hours. How long would it take Jenny to do it alone? \n" ); document.write( "
Algebra.Com's Answer #104318 by ankor@dixie-net.com(22740)\"\" \"About 
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Working together, Jenny and Natalie can mop a warehouse in 5.14 hours. Had she done it alone it would have taken Natalie 12 hours. How long would it take Jenny to do it alone?
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\n" ); document.write( "Let t = time required for J to do the job alone
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\n" ); document.write( "Let the completed job = 1
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\n" ); document.write( "\"5.14%2F12\" + \"5.14%2Ft\" = 1
\n" ); document.write( "Multiply equation by 12t to get rid of the denominators:
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\n" ); document.write( "5.14t + 12(5.14) = 12t(1)
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\n" ); document.write( "5.14t + 61.68 = 12t
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\n" ); document.write( "61.68 = 12t - 5.14t
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\n" ); document.write( "61.68 = 6.86t
\n" ); document.write( "t =\"61.68%2F6.86\"
\n" ); document.write( "t = 8.99 ~ 9 hrs J's time alone
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\n" ); document.write( "Check solution using original equation
\n" ); document.write( "5.14/12 + 5.14/9 =
\n" ); document.write( ".4283 + .5711 = .999 ~ 1
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