document.write( "Question 1082313: For a class field trip, 12 parents volunteered to be the chaperones. If a group of 5 parents is needed for the trip, how many groups can be chosen? SHOW YOUR WORK \n" ); document.write( "

Algebra.Com's Answer #696508 by jorel1380(3719) $\"\"$ $\"About$

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12 parents, chosen 5 at a time, equals 12 choose 5, or 792. Checking to see, we get:
\n" ); document.write( "12 choose 5=12!/7!5!=12x11x10x9x8x7!/5x4x3x2x1x7!=95040/120=792 ☺☺☺☺ \n" ); document.write( "

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