Question

Solve for n:
(n-1)!/(n-3)! = 20

Answer 1

Answer:59/19

Explanation:

Answer 2

typically, this problem doesn't include any value for n cuz! but solving using portion, the answer is 59/19

or 3.11

Explanation:

proofing my ans:

(n-1)!/n-3! = 20

cross multiply

20(n-3)=n-1

20n -60=n-1

20n-n=-1+60

19n=59

divide both sides of the equation by 19

n = 59/19

decimal form is 3.11