For dinner at a restaurant, there are x choices of appetizers, y + 1 main courses, and z choices of dessert. How many total possible choices are there if you choose 1 appetizer, 1 main course, and 1 dessert for your meal?
- x + y + z + 1
- xyz + xz
- xy + z + 1
- xyz + 1
- xyz + 1/2
Answer(s): B
Explanation:
Use the counting principle: Take the number of choices you have for each course and multiply them together to get the total possible combinations. x × (y + 1) × z. Use the distributive property to simplify to xyz + xz.