document.write( "Question 682353: In a certain town, there are 10,000 bicycles, each of which is assigned a license number from 1 to 10,000. No two bicycles have the same license. What is the probability that the first bike you come across has a license plate without any 8's? \n" ); document.write( "
Algebra.Com's Answer #423161 by Edwin McCravy(20065)\"\" \"About 
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document.write( "One-digit numbers:\r\n" );
document.write( "It can be any of these 8 digits: 1,2,3,4,5,6,7,9\r\n" );
document.write( "So there are 8 one-digit numbers without any 8's.\r\n" );
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document.write( "Two-digit numbers:\r\n" );
document.write( "The first digit can be any of these 8 digits: 1,2,3,4,5,6,7,9\r\n" );
document.write( "The second digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "So there are 8×9 two-digit numbers without any 8's.\r\n" );
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document.write( "Three-digit numbers:\r\n" );
document.write( "The first digit can be any of these 8 digits: 1,2,3,4,5,6,7,9\r\n" );
document.write( "The second digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "The third digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "So there are 8×9×9 three-digit numbers without any 8's.\r\n" );
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document.write( "Four-digit numbers:\r\n" );
document.write( "The first digit can be any of these 8 digits: 1,2,3,4,5,6,7,9\r\n" );
document.write( "The second digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "The third digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "The fourth digit can be any of these 9 digits: 0,1,2,3,4,5,6,7,9\r\n" );
document.write( "So there are 8×9×9×9 three-digit numbers without any 8's. \r\n" );
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document.write( "Five-digit numbers:\r\n" );
document.write( "There is only one, 10000 itself, and it must be included because there\r\n" );
document.write( "are 10000 bicycles.\r\n" );
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document.write( "Total number of bicycle tags without 8's = \r\n" );
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document.write( "8 + 8×9 + 8×9×9 + 8×9×9×9 + 1 = 8 + 72 + 648 + 5832 + 1 = 6561.\r\n" );
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document.write( "Total number of bicycle tags = 10000\r\n" );
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document.write( "Desired probability \"6561%2F10000\" = 0.6561\r\n" );
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document.write( "Edwin
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