Answer:
12 ways
Step-by-step explanation:
Normally there are 4 species of deer in the reindeer, which normally could have been arranged in 4! ways = 24 ways
Now considering the restriction that Prancer and Lancer are put apart
The number of arrangement when they are apart = Total number of ways - number of ways when they are together
Note: If they are put together, the two are seen as one which makes the arrangement to be 3!, but also note that either of them can be at the front or back.
Therefore, the number of arrangement when Prancer and Lancer are put together = 2(3!) = 2(3*2*1) = 12 ways
The number of arrangement when they are put apart = 24 - 12 = 12 ways
Answer:
Step-by-step explanation:
iger Algebra gives you not only the answers, but also the complete step by step method for solving your equations {10-5*x-(20)=0} so that you ... by subtracting what is to the right of the equal sign from both sides of the equation :
