document.write( "Question 529348: A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball? \n" ); document.write( "
Algebra.Com's Answer #349561 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! A box contains 7 red balls and 7 blue balls. If we choose three random balls, how many ways can we choose exactly 1 red ball? \n" ); document.write( "---- \n" ); document.write( "# of ways to select 1 red ball: 7 \n" ); document.write( "# of ways to select 2 blue: 7C2 = 21 \n" ); document.write( "---- \n" ); document.write( "# of ways when select 3 to select 1 red: 7*21 = 147 \n" ); document.write( "========================================================== \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "=========== \n" ); document.write( " |