document.write( "Question 488292: Please help me solve this word problem, I do not understand what to do.\r
\n" ); document.write( "\n" ); document.write( "It takes John 30 minutes to clean his house, When his wife helps him, it only takes him 18 minutes. How long would it take his wife by herself? \n" ); document.write( "

Algebra.Com's Answer #852356 by josgarithmetic(39838) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "                speed, work rate         time         amount of work\r\n" );
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document.write( "John                1/30                      30                1\r\n" );
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document.write( "Wife                1/x                        x                1                                   \r\n" );
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document.write( "both together       1/18                       18               1       \r\n" );
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\n" ); document.write( "\n" ); document.write( " $\"1%2F30%2B1%2Fx=1%2F18\"$ -----solve this basic equation.\r
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\n" ); document.write( "\n" ); document.write( " $\"1%2Fx=1%2F18-1%2F30\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"540=30x-18x\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"12x=540\"$ \r
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\n" ); document.write( "\n" ); document.write( " $\"highlight%28x=45%29\"$ \n" ); document.write( "

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