document.write( "Question 934279: 1)what is the smallest positive integer that is 13 times the sum of it is digits
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Algebra.Com's Answer #567351 by Edwin McCravy(20056)\"\" \"About 
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document.write( "It can't be a 4 digit number or larger because 1000/13 = 76.9 \r\n" );
document.write( "and the largest possible sum of 4 digits is of 9999 which is only 36.\r\n" );
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document.write( "It can't be a 2-digit number because 10x13=130 a 3 digit number.\r\n" );
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document.write( "So it must be 3-digit number:\r\n" );
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document.write( "\"100h%2B10t%2Bu=13%28h%2Bt%2Bu%29\"\r\n" );
document.write( "\"100h%2B10t%2Bu=13h%2B13t%2B13u\"\r\n" );
document.write( "\"87h=3t%2B12u\"\r\n" );
document.write( "\"29h=t%2B4u\"\r\n" );
document.write( "\"t=29h-4u\"\r\n" );
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document.write( "\"0%3Ct=29h-4u%3C=9\"\r\n" );
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document.write( "h must be 1 because if it were 2 or greater, \r\n" );
document.write( "u would have to be greater than 9.\r\n" );
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document.write( "\"29-4u%3C10%0D%0A%7B%7B%7B4u%3E19\"\r\n" );
document.write( "\"u%3E4.75\" \r\n" );
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document.write( "So u  is 5,6, or 7.  It can't be 8 for that would make t negative\r\n" );
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document.write( "\"t=29-4u\"\r\n" );
document.write( "If u=5, t=9, and the number ia 195\r\n" );
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document.write( "If u=6, t=5, and the number is 156  \r\n" );
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document.write( "If u=7, t=1, and the number is 117\r\n" );
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document.write( "Answer: The smallest is 117.\r\n" );
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document.write( "Edwin
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