Here, 4x + x =180 [ Supplementary angles ]
5x = 180
x = 180/5
x = 36
In short, Your Answer would be Option C
Hope this helps!
Let
x---------> Steve's time
y--------> Paul's time
we know that

------> Steve is faster than Paul
Divide x by y

therefore
<u>the answer is the option</u>
A. Steve is 5⁄6 as fast as Paul
Answer:
0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is

In which
P(B|A) is the probability of event B happening, given that A happened.
is the probability of both A and B happening.
P(A) is the probability of A happening.
In this question:
Event A: Tested negative
Event B: Does not carry an abdornal CF gene.
Probability of a negative test:
10% of 1/25 = 0.04 = 4%
100% of 100 - 4 = 96%. So

Negative test and not carrying an abdornal gene:
100% of 96%. So

Compute the probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.

0.9959 = 99.59% probability that a randomly chosen person of European ancestry does not carry an abnormal CF gene given that he /she tested negative.
In the question it gives you what "s" is which is 3, so plug that in instead of s.
c = 25s²
c = 25(3²)
c = 25(9)
c = 225 << your answer
hope this helps, God bless!