<span>Gallons because 1 gallon is 128 fl oz and you already know that 128 is greater than 100</span>
Answer:
The pump fill the pool in 3/5 hours
Step-by-step explanation:
From noon to 1/4 hours later, the pool goes from 1/3 to 3/4 full. That's means that the pool fill X quantity in 1/4 hours, where X is calculate as:
![X=\frac{3}{4} -\frac{1}{3}=\frac{5}{12}](https://tex.z-dn.net/?f=X%3D%5Cfrac%7B3%7D%7B4%7D%20-%5Cfrac%7B1%7D%7B3%7D%3D%5Cfrac%7B5%7D%7B12%7D)
So, the constant rate R can be calculated as:
![R=\frac{5/12 full }{1/4 hours} =5/3](https://tex.z-dn.net/?f=R%3D%5Cfrac%7B5%2F12%20full%20%7D%7B1%2F4%20hours%7D%20%3D5%2F3%20)
That means that every hour the pool can be fill 5/3 full, so if we want to know how many hours is needed to fill the poll one time, we can write the following equation:
![\frac{5 full}{ 3 hours} *t = 1 full](https://tex.z-dn.net/?f=%5Cfrac%7B5%20full%7D%7B%203%20hours%7D%20%2At%20%3D%201%20full)
Where t is the time required to fill the pool. Solving for t we get:
t = 3/5 hours
so, the pump fill the pool in 3/5 hours or 36 minutes with a constant rate of 5/3.
Answer:
A. 7:21 = 3:9
Step-by-step explanation:
7 is to 21 as 3 is to 9.
Replace the word to with colons and the word as with the equals sign
7:21 = 3:9