document.write( "Question 1083516: How many different 4-topping pizzas can be made if there are 13 individual toppings to choose from? Assume that no topping is used more than once and that the order of the
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document.write( "toppings on the pizza is unimportant.\r
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Algebra.Com's Answer #697513 by jorel1380(3719)![]() ![]() You can put this solution on YOUR website! If each pizza requires 4 toppings, then the number of different pizzas you could make is 13 choose 4, or 715 different combinations. If the pizzas can have less than 4 toppings each, then you can make [13x12x11x10]+1, or 17,161 different pizzas (the last one would be a no-topping, plain cheese pizza). ☺☺☺☺ \n" ); document.write( " |