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Answer: E. 10</h3>
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Explanation:
Label the friends A,B,C,D,E
There are 5 choices for the first ticket, then 4 for the second, and 3 for the third. We have 5*4*3 = 20*3 = 60 permutations. One permutation is ABC and another permutation is CBA if order mattered. However, order does not matter. All that counts is the group overall rather than the individual. This is because there is no ranking and all the friends are effectively treated equally.
With a set like {A,B,C} there are 3! = 3*2*1 = 6 ways to arrange this set of three items. This means we have overcounted by a factor of 6. Divide the previous result (60) by 6 to get 60/6 = 10
So there are exactly 10 different groups possible.
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You can use the combination formula

with n = 5 and r = 3 to get the same result.
Or you could use Pascal's triangle to find "10" located in the row that has 1,5,10,10,5,1. Notice how 10 is located in slot 3. You start counting at slot 0.
Answer:
16
Step-by-step explanation:
A fraction that is divided by a number is just multiplication with the denominator. So with that 8(2)=16
We know that an hour has 60 minutes. She took 20 minutes to do one batch so we can see how many batches she makes with dividing 60 by 20. This would give us 3 batches per hour. Now we know she makes 8 frosted cookies per 20 minutes so we multiply 8 by 6 (2 hours as 20 min) and it would give us 48 frosted cookies
Answer:
Step-by-step explanation:
4 days
8/10 * 5 = 4