SOLUTION: I am a little confused on how to solve this factorial for x. 1/(x+1)! < .001 The answer is supposed to be 6.

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Question 579845: I am a little confused on how to solve this factorial for x.
1/(x+1)! < .001
The answer is supposed to be 6.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
+1%2F%28x%2B1%29%21+%3C+.001++
Multiply both sides by +%28+x+%2B+1%29%21+
+1+%3C+%281%2F1000%29%2A%28+x+%2B+1+%29%21+
Multiply both sides by +1000+
+%28+x+%2B+1+%29%21+%3E+1000+
+x+=+5+
+6%2A5%2A4%2A3%2A2%2A1+=+720+
+x+=+6+
+7%2A6%2A5%2A4%2A3%2A2%2A1+=+5040+
+5040+%3E+1000+
+x+=+6+ is the answer