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A new school randomly assigns a five-character student code to every prospective student. The school uses the characters 1, 2, 3, 4, 5, W, X, Y, and Z. If none of the student codes contain a repeated
character, what is the total number of codes that can be randomly assigned?
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User: A new school randomly assigns a five-character student code to every prospective student. The school uses the characters 1, 2, 3, 4, 5, W, X, Y, and Z. If none of the student codes contain a repeated character, what is the total number of codes that can be randomly assigned?

Weegy: The total number of codes is: 387,420,489
vandar|Points 220|

User: A yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. If the store has 18 possible toppings, how many different 3-topping combinations can a customers choose?

Weegy: A customer can choose from 4,896 combinations.
Expert answered|patmarone|Points 2732|

User: use pascal triangle to find 8 4

Question
Asked 12/13/2011 1:03:05 PM
Updated 1/8/2012 9:59:05 PM
4 Answers/Comments
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A new school randomly assigns a five-character student code to every prospective student. The school uses the characters 1, 2, 3, 4, 5, W, X, Y, and Z. If none of the student codes contain a repeated character, the total number of codes that can be randomly assigned is 15210.
Added 1/8/2012 9:30:10 PM
3
A yogurt shop allows its customers to add, for no charge, 3 toppings to any yogurt purchased. If the store has 18 possible toppings, there are a total of 816 three-topping combinations.
Added 1/8/2012 9:32:27 PM
Comments
Hi, my answer was correct. I got my answer through this 18 * 17 * 16. Please let me know why you think this is wrong. Thanks!
Added 1/8/2012 9:52:22 PM
That would be correct for permutation, but order would not matter in the case of ice cream toppings. This was asking for combination which means that you have 18*17*16 divided by 3! or (18*17*16)/(3*2) = 816
Added 1/8/2012 9:59:06 PM
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