Answer:
Step-by-step explanation:
3x + 20
You will need to find out what x represents by doing that you add 80+60 which equals 140 now you know what your missing
3 times what + 20 equals 140
40×3=120+20=140
Your answer would be 3•40+20=140
486 - 9 + 6 + 3³ · 2 = 477 + 6 + 27 · 2 = 483 + 54 = 537
Answer:
135/4
Step-by-step explanation:
That's 45 divided by 4/3, which is 45 times 3/4, which is 135/4
Answer:
The probability that a person with the marker develops cancer is 0.0725.
Step-by-step explanation:
Let's denote the events as follows:
<em>A</em> = a person has cancer
<em>B</em> = a person carries the marker.
<u>Given:</u>
P (A) = 0.03
P (B) = 0.12
P (B|A) = 0.29
The conditional probability of an event <em>X</em> provided that another event <em>Y</em> has already occurred is:
![P(X|Y)=\frac{P(Y|X)P(X)}{P(Y)}](https://tex.z-dn.net/?f=P%28X%7CY%29%3D%5Cfrac%7BP%28Y%7CX%29P%28X%29%7D%7BP%28Y%29%7D)
Use the conditional probability formula to compute the probability that a person with the marker develops cancer.
![P(A|B)=\frac{P(B|A)P(A)}{P(B)} =\frac{0.29\times0.03}{0.12}=0.0725](https://tex.z-dn.net/?f=P%28A%7CB%29%3D%5Cfrac%7BP%28B%7CA%29P%28A%29%7D%7BP%28B%29%7D%20%3D%5Cfrac%7B0.29%5Ctimes0.03%7D%7B0.12%7D%3D0.0725)
Thus, the probability that a person with the marker develops cancer is 0.0725.
Answer:
193
Step-by-step explanation:
All you do is 238 - 45 and its 193