SOLUTION: find the number of ways a sandwich can be make from choosing 1 each of the following: white or wheat bread, and turkey, ham, or roast beef, and american cheese, swiss cheese, or ch
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Question 149385: find the number of ways a sandwich can be make from choosing 1 each of the following: white or wheat bread, and turkey, ham, or roast beef, and american cheese, swiss cheese, or cheddar cheese, and mayo or mustard.
I am confused as to which # (n,r) are
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
in a group; n is the number of items to choose from and r is the number of items chosen
there are multiple groups to choose from; bread, meat, cheese, condiment __ but one choice from each group
r is 1; n is the number of items in the group __ 2 breads, 3 meats, 3 cheeses, 2 condiments
so there are 2*3*3*2 or 36 possible combinations
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