document.write( "Question 558202: your desk is 80 centimeters wide how many inches wide is your desk? \n" ); document.write( "
Algebra.Com's Answer #362986 by Edwin McCravy(20055)\"\" \"About 
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document.write( "The other tutor is being a smart-ass.  80cm is about right for a standard \r\n" );
document.write( "student desk in a classroom.  He should have known this problem was not\r\n" );
document.write( "about a desk in an office.\r\n" );
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document.write( "To convert 80 centimeters to inches, we put 80cm over 1 like this:\r\n" );
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document.write( "\"%2880cm%29%2F1\"\r\n" );
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document.write( "and then we use the fact that 1in = 2.54cm to make the unit fraction\r\n" );
document.write( "\"1in%2F%282.54cm%29\" to multiply that by.  We chose the unit fraction with\r\n" );
document.write( "centimeters on the bottom so it would cancel with the centimeters in \r\n" );
document.write( "the top of \"%2880cm%29%2F1\".  Multiplying by that unit fraction:\r\n" );
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document.write( "\"%2880cm%29%2F1\"×\"%281in%29%2F%282.54cm%29\"\r\n" );
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document.write( "Then we cancel the cm's:\r\n" );
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document.write( "\"%2880cross%28cm%29%29%2F1\"×\"%281in%29%2F%282.54cross%28cm%29%29\"\r\n" );
document.write( " \r\n" );
document.write( "And we have\r\n" );
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document.write( "\"%2880%2A1in%29%2F2.54\"\r\n" );
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document.write( "\"%2880in%29%2F2.54\"\r\n" );
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document.write( "And we divide 80 by 2.54 and get\r\n" );
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document.write( "31.49606299 inches\r\n" );
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document.write( "which you'd probably round off to 31.5 inches.\r\n" );
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document.write( "Edwin

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