document.write( "Question 480557: HOW MANY PERMUTATIONS ARE THERE OF THE FOLLOWING WORD.
\n" );
document.write( "M n1 MATHEMATICS 11 LETTERS n=11
\n" );
document.write( "A n2
\n" );
document.write( "T n3
\n" );
document.write( "H n4
\n" );
document.write( "E n5
\n" );
document.write( "M n6 ( 11 ) 11!
\n" );
document.write( "C n7 _____
\n" );
document.write( "T n8 ( 2,2,2,1,1,1,1,1 )= 2!2!2!1!1!1!1!1! now the question is what
\n" );
document.write( "I n9 do I do after this?
\n" );
document.write( "C n10 PLEASE SOMEONE EXPLAIN TO
\n" );
document.write( "S n11 ME STEP BY STEP:: THANKS \n" );
document.write( "
Algebra.Com's Answer #329115 by Theo(13342)![]() ![]() You can put this solution on YOUR website! mathematics has 11 letters. \n" ); document.write( "there are 2 m's \n" ); document.write( "there are 2 a's \n" ); document.write( "that are 2 t's \n" ); document.write( "the number of permutations should be: \n" ); document.write( "11! / (2!*2!*2!) = 4989600 \n" ); document.write( "to see how this works, use much smaller numbers. \n" ); document.write( "suppose your letters were \"mat\" \n" ); document.write( "the number of permutations would be 3! = 6 \n" ); document.write( "those permutations would be: \n" ); document.write( "mat \n" ); document.write( "mta \n" ); document.write( "amt \n" ); document.write( "atm \n" ); document.write( "tam \n" ); document.write( "tma \n" ); document.write( "now suppose your letters were \"mma\" \n" ); document.write( "the number of permutations would be 3!/2! because 2 of the letters were the same. \n" ); document.write( "those permutations would be: \n" ); document.write( "mma \n" ); document.write( "mam \n" ); document.write( "amm \n" ); document.write( "now suppose your letters were \"mmat\" \n" ); document.write( "the number of permutations, if our equation is correct, would be 4!/2! = 12 \n" ); document.write( "those permutations would be: \n" ); document.write( "mmat \n" ); document.write( "mmta\r \n" ); document.write( "\n" ); document.write( "mamt \n" ); document.write( "matm \n" ); document.write( "ammt \n" ); document.write( "amtm\r \n" ); document.write( "\n" ); document.write( "mtam \n" ); document.write( "mtma \n" ); document.write( "tmam \n" ); document.write( "tmma\r \n" ); document.write( "\n" ); document.write( "atmm \n" ); document.write( "tamm\r \n" ); document.write( "\n" ); document.write( "that's a total of 12.\r \n" ); document.write( "\n" ); document.write( "now, suppose your letters are \"mmtt\"\r \n" ); document.write( "\n" ); document.write( "the number of permutations would be 4!/(2!*2!) = 24/4 = 6\r \n" ); document.write( "\n" ); document.write( "those permutations would be:\r \n" ); document.write( "\n" ); document.write( "mmtt \n" ); document.write( "ttmm\r \n" ); document.write( "\n" ); document.write( "mtmt \n" ); document.write( "tmtm\r \n" ); document.write( "\n" ); document.write( "tmmt \n" ); document.write( "mttm\r \n" ); document.write( "\n" ); document.write( "that's a total of 6. \n" ); document.write( "the formula works as can be seen with the smaller numbers. \n" ); document.write( "applying it to the larger numbers gets you \n" ); document.write( "number of permutations in \"mathematics\" is equal to 11!/(2!*2!*2!) = 4989600.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "11! / (2!*2!*2!) is equal to 11*10*9*8*7*6*5*4*3*2*1 / 2*1*2*1*2*1 \n" ); document.write( "since the denominator winds up being 8, we cancel the 8 from the numerator with it to get: \n" ); document.write( "11! / (2!*2!*2!) = 11*10*9*7*6*5*4*3*2*1 \n" ); document.write( "this is equivalent to: \n" ); document.write( "11! / (2!2!*2!) = 110 * 96 * 30 * 12 * 2 which is equal to 6930 * 720 which is equal to 4989600\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "formula looks good and that should be your answer.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |