+0  
 
0
313
3
avatar+262 

A very large tank contains 1000L of pure water, and brine water with 50 g/L of salt is pumped into the tank at a rate of 3 L/min. Find a forumula for C(t), the concentration of salt (in g/L) in the tank's fluid after t minutes.

gretzu  Feb 8, 2016

Best Answer 

 #1
avatar+26329 
+20

Every minute there are 3*50 = 150 grams of salt pumped in and 3 Litres of water, so after t minutes there are 150t grams in 3t + 1000 Litres.  Hence C(t) = 150t/(3t + 1000) g/L

 

.

Alan  Feb 8, 2016
Sort: 

3+0 Answers

 #1
avatar+26329 
+20
Best Answer

Every minute there are 3*50 = 150 grams of salt pumped in and 3 Litres of water, so after t minutes there are 150t grams in 3t + 1000 Litres.  Hence C(t) = 150t/(3t + 1000) g/L

 

.

Alan  Feb 8, 2016
 #3
avatar+262 
0

Thank you! :)

gretzu  Feb 20, 2016
 #2
avatar+91045 
+5

Hi Alan, it is really good to see you - we have missed you here  :)

Melody  Feb 9, 2016

13 Online Users

avatar
avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details