document.write( "Question 1022083: there are 11 people in an office with 3 different phone lines.
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document.write( "If all the lines begin to ring at once, how many groups of 3
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document.write( "people can answer these lines? \n" );
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Algebra.Com's Answer #637852 by Edwin McCravy(20054)![]() ![]() You can put this solution on YOUR website! there are 11 people in an office with 3 different phone lines. \n" ); document.write( "If all the lines begin to ring at once, how many groups of 3 \n" ); document.write( "people can answer these lines? \n" ); document.write( " \r\n" ); document.write( "Choose the person to answer the first phone in 11 ways.\r\n" ); document.write( "That leaves 10 people to choose to answer the second phone.\r\n" ); document.write( "That leaves 9 people to choose to answer the third phone.\r\n" ); document.write( "\r\n" ); document.write( "Answer 11*10*9 = 11P3 = 990 ways\r\n" ); document.write( "\r\n" ); document.write( "Edwin\n" ); document.write( " |