Answer:

Step-by-step explanation:
The rates are additive: you can calculate the<em> inlet </em>rate and the <em>outlet</em> rate and add them algebraically, i.e. the inlet rate will be positive and the outlet rate will be negative.
<u>1. Inlet rate:</u>

<u />
<u>2. Outlet rate:</u>

<u>3. Net rate:</u>

<u>4. Time to fill the vat</u>


U.S customary system also known as the English system.
Founded by the British, but they dropped it. Now only three countries in the world still use this system.
Answer: -36 = 8
Step-by-step explanation:

1/4 saved, 3/4
1/3 of the rest (4/4-1/4=3/4, 3/4=rest)
1/3 of 3/4=3/12=1/4
saved=1/4
spent on t-shirt=1/4
CD=?
1/4+1/4+?=4/4
2/4+?=4/4
minus 2/4
?=2/4
?=1/2
spent 1/2 on CDs
9/24
28/24
If you need an explanation just ask