Answer:
3 hours
Step-by-step explanation:
Since it will take the sprinkler 12 times longer to mow the entire lawn than 1/12 of it, it will take 1/4*12=3 hours, or the last answer choice. Hope this helps!
If the system is fair, one would expect that the same proportion of students received their requested math class, independent of whether they are on the honor roll or not. We have that from the 356 students on the honor roll, 315 received their requested class. This percentage is around 88.5%, hence 88,5% of honor students get the class they requested. Of the 144 students not on the honor roll, 64 get their requested class. The ratio is 64/144=44.4%. We see that the percentage is a lot smaller, almost half of the percentage for the honor students. Hence, we have that there is actually injustice since if you are an honor student you have almost double the chance to get your preferred class.
Answer:
6:55 A. M. is the latest time he can leave his house
-(-z + 3) equals z - 3
5 = z - 3
z = 8
