Personally, I never bothered learning the formula.
When I run into a problem like this, I look at it this way:
(I learned this method from my high school math teacher,
Mr. H. Carlisle Taylor, in 1956. It not only works, but I can
even understand it !)
The first object can be any one of the 8 . For each of those ...
The 2nd object can be any one of the other 7. For each of those ...
The 3rd object can be any one of the other 6 . For each of those ...
The 4th object can be any one of the other 5 . For each of those ...
The 5th object can be any one of the other 4 . For each of those ...
The 6th object can be any one of the other 3 . For each of those ...
The 7th object can be any one of the other 2 . For each of those ...
The 8th object has to be the 1 that's left.
Total number of possible ways to line them up is
(8 x 7 x 6 x 5 x 4 x 3 x 2 x 1) = 40,320 ways .
Step-by-step explanation:
here you are :
6x-8
6x=8
x=8/6 =>4/3
....... The answer is: x=1
Answer:
<h2>-20</h2>
Step-by-step explanation:
divide both by -11 ->
x = - 20
For Question 6 it’s + 13 each time so add 13 to the number after
For Question 7 it’s -26 every time so subtract 26 from the number before
