document.write( "Question 646858: 5. How many phone numbers are possible in the 952 area code?
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Algebra.Com's Answer #405961 by dfrazzetto(283)![]() ![]() You can put this solution on YOUR website! Repeats are allowed (eg: 952-555-5555)\r \n" ); document.write( "\n" ); document.write( "So:\r \n" ); document.write( "\n" ); document.write( "digits 0 - 9 allowed, 10 possible digits in each slot, w/ 7 slots available:\r \n" ); document.write( "\n" ); document.write( "N = 952 _ _ _ - _ _ _ _ = 10x10x10x10x10x10x10 = 10^7 = 10,000,000 possible numbers \n" ); document.write( " |