Register
A code has 6 digits. You can type in 0~9 for your code. How many different combinations of codes can you make if you can repeat digits? How many different combinations of codes can you make if you can
215k views
1 vote
A code has 6 digits. You can type in 0~9 for your code. How many different combinations of codes can you make if you can repeat digits? How many different combinations of codes can you make if you can not repeat digits?

User Vijay Hardaha
by
5.6k points

1 Answer

5 votes
combinations
10 choices per slot
10^6=1000000
1 million different ways if can repeat

if cannot repeat
10*9*8*7*6*5=151200 ways without repat
User Colin Atkinson
by
5.8k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

6.6m questions

8.8m answers

Other Questions

What is the least common denominator of the four fractions 20 7/10 20 3/4 18 9/10 20 18/25
What is 0.12 expressed as a fraction in simplest form
arlos has $690,000 he wants to save. If the FDIC insurance limit per depositor, per bank, is $250,000, which of these ways of distributing his money between three banks will guarantee that all of his money
Solve using square root or factoring method plz help!!!!.....must click on pic to see the whole problem
What is the initial value and what does it represent? $4, the cost per item $4, the cost of the catalog $6, the cost per item $6, the cost of the catalog?
Link Copied!