Answer:
x = -40
Step-by-step explanation:
<u>Rewrite "(x - 4)/4" in a different way:</u>
⇒ 8 + x/2 = (x - 4)/4 - 1
⇒ 8 + x/2 = x/4 - 4/4 - 1
<u>Simplify the R.H.S:</u>
⇒ 8 + x/2 = x/4 - 1 - 1
⇒ 8 + x/2 = x/4 - 2
<u>Add 2 both sides and subtract x/2 both sides:</u>
⇒ 8 + x/2 = x/4 - 2
⇒ 8 + 2 = x/4 - x/2
⇒ 10 = x/4 - 2x/4
<u>Simplify the R.H.S:</u>
⇒ 10 = x/4 - 2x/4
⇒ 10 = -x/4
<u>Use cross multiplication:</u>
⇒ 10 × 4 = -x
⇒ -(40) = x = -40
Answer:
What is the expected value for the insurance company?
E(x) = 0.9986*161 + 0.0014*(-99839) = $21.00
Step-by-step explanation: Ur welcome
There is a 0.9986 probability that a randomly selected 30 year old male lives through the year. A life insurance company charges $161 for insuring that the male lives through the year. If the male does not survive the year, the policy pays out $100,000 as a death benefit.
If each book is $7.35 each then John would be able to buy 4 books which would be a total of $29.40
(X4-3x2+1) / X - 1
3x / X - 1
Hope it helps
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