Question

Mrs. Irvin's kids would like some sandwiches! They can choose from 3 kinds of bread, 2 types of meat, and 4 types of cheeses. How many different sandwich combinations could she make? (Hint: Draw a tree diagram to help figure out the combinations. You could label bread as B1, B2, B3; meat as M1, M2; cheese as C1, C2, C3, C4, etc)

9 sandwich combinations
10 sandwich combinations
24 sandwich combinations
None. They will all end up wanting peanut butter instead and then just feed it to the dog. ;)

Answer 1

I don't knoooooooooow

Answer 2

24 sandwich combinations

Explanation:

To solve this problem, you can do 3x2x4, and you would get 24.

Or, you can do something like this:

1st kind of bread with 1st type of meat and 4 options of cheese = 4 possible combinations

1st kind of bread with 2nd type of meat and 4 options = another 4 possible combinations

Those combinations added together equals 8 combinations. If you multiply this by 3 (3 types of bread), then you would get 24 sandwich combinations, which is the answer.

Hope this helps! :)