Yes ab and bc are always on the same line
Answer:

Step-by-step explanation:
Given
--- volume of tank
--- solid mass
--- outflow rate
Required
Determine the concentration at the end of 4 hours
First, calculate the amount of liquid that has been replaced at the end of the 4 hours.




This implies that, over the 4 hours; The tank has 160000 liters of liquid out of 440000 liters were replaced
Calculate the ratio of the liquid replaced.




Next, calculate the amount of solid left.




Lastly, the concentration is calculated as:


Convert L to cubic meters



Answer:
$27,272.73= sales
Step-by-step explanation:
Giving the following information:
Desired commission= $900
Commission rate= 3.3% = 0.033 of sales
<u>To calculate the sales required, we need to use the following formula:</u>
Commission= sales*commission rate
900= sales*0.033
900/0.033= sales
$27,272.73= sales
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Answer:
Step-by-step explanation:
x=30
m=abe=180