1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elis [28]
3 years ago
5

How many 3 letter codes are possible using a-j without repeats?

Mathematics
1 answer:
Dennis_Churaev [7]3 years ago
5 0
There are 10 letters in the set {a, b, c, d, e, f, g, h, i, j} which is the pool of letters to choose from when making these three letter codes.

We have 10 choices for slot 1
Then 9 choices for slot 2. This is because we can't reuse the choice for slot 1
Then 8 choices for slot 3

Overall, there are 10*9*8 = 90*8 = 720 different permutations

Answer: 720

Note: you can use the nPr permutation formula with n = 10 and r = 3 to get the same answer
You might be interested in
What is the square root of 36/196<br> √36/169
Andrei [34K]

Answer:

<em>The square root of 36/196 is </em><em>3</em><em>/</em><em>7</em><em>.</em>

<em>The </em><em>square</em><em> root</em><em> of</em><em> </em><em>3</em><em>6</em><em>/</em><em>1</em><em>6</em><em>9</em><em> </em><em> </em><em>is </em><em> </em><em>6</em><em>/</em><em>1</em><em>3</em><em>.</em>

5 0
2 years ago
Read 2 more answers
A group of people were asked if they had run a red light in the last year. 386 responded "yes", and 137 responded "no". Find the
ludmilkaskok [199]

Answer: The probability would 0.35770234986 or 35%

Step-by-step explanation:

3 0
3 years ago
Jenna and Becca were both selling cookies door to door. Jenna sold 8 boxes of cookies for every 3 boxes of cookies Becca sold. C
LenaWriter [7]
Answer:
Jenna sold 280 boxes, Becca sold 105 boxes.

Step-by-step explanation:
For every 3 boxes B sold, J sold 8 boxes and ended with a total of 385 boxes sold.
3b+8j=385
From how the question is asked, we can assume that each round of sales would equal 11 total sales. (3b+8j=11)
Knowing the sales take place in intervals of 11, we can solve the problem by doing 385/11.
385/11=35
Finally, with 35 rounds of sales happening and knowing Jenna sells 8 while Becca sells 3 at each one, all that's left to do is multiply.
8x35=280
3x35=105
To be sure we can check our answer by adding them together, 280+105=385.
4 0
1 year ago
Can someone actually help me w this ?
Kay [80]

Answer:

the first 1

Step-by-step explanation:

8 0
3 years ago
PLEASE HELP QUICK !!!!
polet [3.4K]

Answer:

fx is 4, gx is 3, hx is anything greater than, not equal to, 4.

Hope this helps!

3 0
2 years ago
Read 2 more answers
Other questions:
  • Bradley has a goal to work 28 hours each week at the pizza shop. So far he has worked 12 hours.how many more hours does he need
    14·2 answers
  • basketball players score 19 times in one game he scored a total of 33.2 of each point to point shot in one of each free-throw ho
    9·2 answers
  • shalyn went to to the movies. She spent 2/5 of her money on a ticket and 3/7 on popcorn. How much did she spend?
    11·1 answer
  • Write an equation in slope intercept form of the line passing through (8,1) and (1,8)
    13·1 answer
  • .
    7·1 answer
  • A cylinder has a base diameter of 20in and a height of 17in. What is its volume in cubic in, to the nearest tenths place?
    10·1 answer
  • 1. Which list shows the numbers in increasing
    6·1 answer
  • BRAINLIEST IF CORRECT
    9·1 answer
  • Income You are starting your first job as an assistant manager at a
    10·1 answer
  • A history test has 30 questions. A student answers 90% of the questions correctly. How many questions did the student get correc
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!