SOLUTION: A person selects 5 letters from the word "Combine" & arranges them. How many ways can they do this? When I did the problem I used n C r (7 C 5 ) but when I checked my answer

Question 978798: A person selects 5 letters from the word "Combine" & arranges them. How many ways can they do this?
When I did the problem I used n C r (7 C 5 ) but when I checked my answer in my notes, I put nPr
(7 P 5) , but I don't understand why. Please explain why using nPr is the correct way to go about this problem.
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Order matters. Something like "combi" is different from "icomb". That's why nPr is used instead of nCr.
RELATED QUESTIONS
Please help me solve the two questions: 1.A person selects 3 letters randomly from 26... (answered by stanbon)

In how many ways can the letters of the word WINNIPEG be arranged if the letters W, P,... (answered by ikleyn)

in how many ways the letters of the word "equation" can be arranged so that the vowels... (answered by Edwin McCravy)

Help!? I am only in Grade 5 and I don't understand this! A box contains the letters M A (answered by josmiceli,Theo)

(a) How many different ways can 2 letters from the word SELECT be arranged? (b) How many (answered by ikleyn,math_tutor2020)

In how many ways can two letters be selected from the letters of the word POSSIBLE? (answered by MathLover1)

Problem: A bag contains five real diamonds and seven fake diamonds. If seven diamonds are (answered by swincher4391)

how many distinguishable permutations can be formed from the letters in the word success? (answered by ikleyn)

This is my second time using this section-the first response was really helpful, so... (answered by prince_abubu)