document.write( "Question 784648: Let A = {1, 2, 3, 4, 5, 6, 7}. How many three element subsets of A contain the element 1 \n" ); document.write( "
Algebra.Com's Answer #477186 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Let A = {1, 2, 3, 4, 5, 6, 7}. How many three element \n" ); document.write( "subsets of A contain the element 1 ? \n" ); document.write( "--------- \n" ); document.write( "# of ways to pick 2 other elments: 6C2 = 15 \n" ); document.write( "----- \n" ); document.write( "Answer: 15 subsets. \n" ); document.write( "======================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " \n" ); document.write( " |