document.write( "Question 1089666: In how many ways can a committee consisting of
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document.write( "4
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document.write( " faculty members and
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document.write( "5
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document.write( " students be formed if there are
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document.write( "10
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document.write( " faculty members and
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document.write( "13
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document.write( " students eligible to serve on the committee?
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document.write( " \n" );
document.write( "
Algebra.Com's Answer #704044 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Problem: \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "In how many ways can a committee consisting of 4 faculty members and 5 students be formed if there are 10 faculty members and 13 students eligible to serve on the committee?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------------------------- \n" ); document.write( "Steps:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use the combination formula to determine how many ways there are to pick the four faculty members (from a pool of ten) \n" ); document.write( "n C r = (n!)/(r!*(n-r)!) \n" ); document.write( "10 C 4 = (10!)/(4!*(10-4)!) \n" ); document.write( "10 C 4 = (10!)/(4!*6!) \n" ); document.write( "10 C 4 = (10*9*8*7*6!)/(4!*6!) \n" ); document.write( "10 C 4 = (10*9*8*7)/(4!) \n" ); document.write( "10 C 4 = (10*9*8*7)/(4*3*2*1) \n" ); document.write( "10 C 4 = 5040/24 \n" ); document.write( "10 C 4 = 210 \n" ); document.write( "There are 210 different ways to pick the four faculty members (from a pool of ten)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Use the combination formula to determine how many ways there are to pick the five students (from a pool of thirteen) \n" ); document.write( "n C r = (n!)/(r!*(n-r)!) \n" ); document.write( "13 C 5 = (13!)/(5!*(13-5)!) \n" ); document.write( "13 C 5 = (13!)/(5!*8!) \n" ); document.write( "13 C 5 = (13*12*11*10*9*8!)/(5!*8!) \n" ); document.write( "13 C 5 = (13*12*11*10*9)/(5!) \n" ); document.write( "13 C 5 = (13*12*11*10*9)/(5*4*3*2*1) \n" ); document.write( "13 C 5 = 154440/120 \n" ); document.write( "13 C 5 = 1287 \n" ); document.write( "There are 1287 ways to pick the five students (from a pool of thirteen)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Multiply the two results to get 210*1287 = 270270\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "------------------------------------------------------- \n" ); document.write( "Answer: 270270\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Note: it's not a typo that \"270\" is written twice. Also, the order of any of the members doesn't matter. \n" ); document.write( " \n" ); document.write( " |