document.write( "Question 945181: there are thirty fabrics at a quilt store. how many different groups of five can you choose for a quilt? \n" ); document.write( "

Algebra.Com's Answer #577160 by Edwin McCravy(20054) $\"\"$ $\"About$

You can put this solution on YOUR website!

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document.write( "30 Choose 5 = 30C5 = 142506\r\n" );
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document.write( "Start with 30, then multiply by 1 less, then by 1 more less, etc.\r\n" );
document.write( "until you have 5 factors on top, \r\n" );
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document.write( "Then have a hay-day of canceling\r\n" );
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document.write( "Cancel the 5 into the 30, get 6.\r\n" );
document.write( "Cancel the 4 into the 28, getting 7.\r\n" );
document.write( "Cancel the 3 into the 29, getting 9.\r\n" );
document.write( "Cancel the 2 into the 26, getting 13.\r\n" );
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document.write( "  6     7  9  13\r\n" );
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document.write( "   1  1 1  1\r\n" );
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document.write( "So it's 6×29×7×9×13 = 142506\r\n" );
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document.write( "If you have a TI graphing calculator, you can do this\r\n" );
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document.write( "type 30\r\n" );
document.write( "press MATH\r\n" );
document.write( "Press the left arrow key <-\r\n" );
document.write( "Press \r\n" );
document.write( "3          (Should see 30 nCr\r\n" );
document.write( "type 5     (Should see 30 nCr 5\r\n" );
document.write( "press ENTER\r\n" );
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document.write( "See 142506 \r\n" );
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document.write( "Edwin

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