document.write( "Question 171471This question is from textbook
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document.write( ": I just want someone to double check my answer.
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document.write( "A club consists of 10 members. In how many different ways can a group of 3 people be selected to go on a European trip?\r
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document.write( "I came up with 9 different ways.\r
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document.write( "Is this answer correct? \n" );
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Algebra.Com's Answer #126624 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! I just want someone to double check my answer. \n" ); document.write( "A club consists of 10 members. In how many different ways can a group of 3 people be selected to go on a European trip? \n" ); document.write( "I came up with 9 different ways. \n" ); document.write( "------------ \n" ); document.write( "The 1st choice is 1 of 10, the 2nd 1 of 9, then 1 of 8, so that's 10*9*8, \n" ); document.write( "=720 \n" ); document.write( "But, selecting AB & C is the same as CA & B, so divide by 3*2*1. \n" ); document.write( "It's 10*9*8/3*2*1 = 720/6 \n" ); document.write( "= 120 \n" ); document.write( " \n" ); document.write( " |