document.write( "Question 1146052: A city currently has approximately 1,200,000 households. Most households have at
\n" );
document.write( "least one fixed telephone line. A fixed telephone line number begins with a 6,
\n" );
document.write( "followed by seven digits that can be between 0 and 9. What is the maximum
\n" );
document.write( "number of unique fixed telephone lines? \n" );
document.write( "
Algebra.Com's Answer #767333 by Edwin McCravy(20055)![]() ![]() You can put this solution on YOUR website! \r\n" ); document.write( " Since the counting numbers 1 through the 7-digit number \r\n" ); document.write( " 9999999, inclusive, account for \r\n" ); document.write( " 9999999 counting numbers, the 8-digit phone numbers\r\n" ); document.write( " 60000001 through \r\n" ); document.write( " 69999999 similarly account for that same number,\r\n" ); document.write( " 9999999, of phone numbers, plus the one phone number \r\n" ); document.write( " 60000000, so there are \r\n" ); document.write( " 10000000 phone numbers. \r\n" ); document.write( "That's ten million.\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |