SOLUTION: A 4 key keypad with A, B, C, D that can be used to open the garage if in the correct order. Each key can only be used once. How many codes are possible?
Algebra.Com
Question 879339: A 4 key keypad with A, B, C, D that can be used to open the garage if in the correct order. Each key can only be used once. How many codes are possible?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
There are 4 choices for slot 1, 3 for slot 2, etc etc
So you have 4*3*2*1 = 24 different codes.
RELATED QUESTIONS
Outside a home, there is a 10-key keypad with letters A,B,C,D,E,F,G,H,I and J that can be (answered by Alan3354)
Can someone help me with this?
Outside a home, there is a 5-key keypad with letters... (answered by Alan3354)
more help needed:
Outside a home, there is an 8-keypad with letters, A,B,C,D,E,G,F,G... (answered by richard1234)
The letters a,b,c,d are to be arranged in a row with each letter being used only once and (answered by stanbon)
How many 3-letter codes can be formed with the letters A, B, and C if each letter can be... (answered by Fombitz)
How many six-letter "words" can be formed from the letters A, B, C, D, E, F, if each... (answered by stanbon)
Please help me solve just two more questions PLease. Thank you.
1.Eight students are on... (answered by stanbon)
Tommy is making a 6 letter password using only the letters A,B,C,D,E and F.How many... (answered by greenestamps)
Find the probability that the combination of 4 letters will be in the order EAFC. The... (answered by Edwin McCravy)