Final answer:
By applying the fundamental counting principle, we find that Maddie can create 60 different costumes by multiplying the number of options for shirts, pants, and shoes together (5 x 3 x 4).
Step-by-step explanation:
The question is asking about the number of different costumes Maddie can create using 1 shirt, 1 pair of pants, and 1 pair of shoes from a selection of 5 shirts, 3 pants, and 4 pairs of shoes.
The answer can be found by using the fundamental counting principle, which states that if there are n ways to do one thing, and m ways to do another, then there are n x m ways to do both.
Applying this principle, we multiply the number of choices for each item of clothing to get the total number of possible costumes:
5 (shirts) x 3 (pants) x 4 (shoes) = 60 different costumes.
Maddie, therefore, has 60 different possible costume combinations to choose from.