document.write( "Question 437800: You have 7 friends who want to go to a concert with you, but you only have 2 extra tickets who many possible ways are there to choose 2 of your 7 friends
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Algebra.Com's Answer #302854 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "7 friends who want to go to a concert with you, 
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document.write( "but you only have 2 extra tickets
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document.write( "Number of ways to choose 2 of your 7 friends = 7C2 = 21 ways
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