A because when you plug the points in every point works
Answer:
8(15-m)
Step-by-step explanation:
By looking at the options, we can understand that the right one is 8(15-m), since we need to multiply the time by the number of question.
Also, we can check that result by arranging an equations usint the total time.
55 = 3m - 8(15-m)
55 = 3m - 120 + 8m
55 = 11m - 120
55 + 120 = 11m
175 = 11m
m = 175/11 = 15.91
55 = 3*15.91 - 8(15-15.91) = 47.73 - 120 + 127.28 = 55.01 ≈ 55
Answer:
A 0.24 probability that one string is defective
Step-by-step explanation:
The sample probabiity:
![P=\frac{6}{25}](https://tex.z-dn.net/?f=P%3D%5Cfrac%7B6%7D%7B25%7D)
![P=0.24](https://tex.z-dn.net/?f=P%3D0.24)
If important to notice that this probability is from the sample, it can be extrapolated to the population but may not be the same.