document.write( "Question 1057792: Would you help me on this question?\r
\n" ); document.write( "\n" ); document.write( "From the 20 CDs that you've bought the past year, you plan to take 3 with you on vacation. How many different sets of three CDs can you take?
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Algebra.Com's Answer #672862 by solve_for_x(190)\"\" \"About 
You can put this solution on YOUR website!
Since the order of the three selected CDs does not matter, this problem is asking for
\n" ); document.write( "the number of combinations.\r
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\n" ); document.write( "\n" ); document.write( "\"C%2820%2C+3%29+=+20%21+%2F+%283%21%2820+-+3%29%21%29+=+20%21+%2F+%283%2117%21%29+=+1140\"\r
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\n" ); document.write( "\n" ); document.write( "There are 1140 ways to select a set of 3 CDs from the group of 20 CDs.
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