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