Respuesta :
Answer:
80,000
Step-by-step explanation:
To solve this, use the Fundamental Counting Principle.
Simply calculate how many options there are for each digit in the combination, then multiply them to find the total number of combinations.
- First digit: 0 - 9 → 10 options
- Second digit: 0 - 9 → 10 options
- Third digit: 0 - 9 → 10 options
- Fourth digit: 0 - 9 → 10 options
- Fifth digit: 2 - 9 → 8 options
Total number of different combinations (codes):
⇒ 10 · 10 · 10 · 10 · 8 = 80,000
- First four digits have 10options
Last digit have
- 10-2=8options
So Total ways
- 10⁴×8
- 10000×8
- 80000ways