document.write( "Question 205942: Pls. Help me I would like to know the proper solving of this question.\r
\n" ); document.write( "\n" ); document.write( "Mariko can finish the typing job in 5 hrs. If Monique helps her, they can finish the same job in three hrs. How long would it take Monique to finish the typing job alone?
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Algebra.Com's Answer #155563 by ankor@dixie-net.com(22740)\"\" \"About 
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Mariko can finish the typing job in 5 hrs.
\n" ); document.write( "If Monique helps her, they can finish the same job in three hrs.
\n" ); document.write( " How long would it take Monique to finish the typing job alone?
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\n" ); document.write( "Let x = amt of time required for Monique to do the job alone
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\n" ); document.write( "Let the completed job = 1
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\n" ); document.write( "Each will do a faction of the job, the two fraction add up to 1:
\n" ); document.write( "\"3%2F5\" + \"3%2Fx\" = 1
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\n" ); document.write( "Multiply equation by 5x to get rid of the denominator, results:
\n" ); document.write( "3x + 3(5) = 5x
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\n" ); document.write( "15 = 5x - 3x
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\n" ); document.write( "15 = 2x
\n" ); document.write( "x = \"15%2F2\"
\n" ); document.write( "x = 7.5 hrs working alone
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\n" ); document.write( "Is this true:
\n" ); document.write( "\"3%2F5\" + \"3%2F7.5\" =
\n" ); document.write( ".6 + .4 = 1
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