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>


Answer:
61%
Step-by-step explanation:
it's really simple just take the percentage of both numbers, 42% and 19% and add them together and whatever the sum is, is gonna be your answer!
Answer:
1/3
Step-by-step explanation:
To convert a decimal to percent, we multiply the decimal by 100. To convert a fraction to decimal, we divide the numerator by the denominator using long division and to convert a fraction to percent, we convert the fraction to decimal and the decimal to percent.
Answer:
12.6
Step-by-step explanation:
4.2×3=12.6
I hope this answer can help you
90-40=50: $90 dollars total. $40 dollars of that is the the cost so you have $50 dollars to find out.
$50÷$2=25: You have $50 dollars left and each visit is $2 so you went 25 times.