Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
PhoenixFire
Group Title
When mixing a certain "alcoholic beverage" a barperson starts with a 10 litre solution of 20% alcohol. Into this solution the barperson mixes a 40% mixture at the rate of 1 litre/minute and pours into glasses at the rate of 2 litre/minute.
(a) Find a formula for the volume V(t) of the mixture at time t minutes.
(b) Find a differential equation that tells the rate of change of the amount of alcohol A(t) at time t minutes.
(c) Solve the differential equation and use the initial condition to find a formula for A(t)
 2 years ago
 2 years ago
PhoenixFire Group Title
When mixing a certain "alcoholic beverage" a barperson starts with a 10 litre solution of 20% alcohol. Into this solution the barperson mixes a 40% mixture at the rate of 1 litre/minute and pours into glasses at the rate of 2 litre/minute. (a) Find a formula for the volume V(t) of the mixture at time t minutes. (b) Find a differential equation that tells the rate of change of the amount of alcohol A(t) at time t minutes. (c) Solve the differential equation and use the initial condition to find a formula for A(t)
 2 years ago
 2 years ago

This Question is Closed

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.0
For (a) I got \[V(t) = 10  t\]
 2 years ago

PhoenixFire Group TitleBest ResponseYou've already chosen the best response.0
I can't figure out (b).... I tried \[{\delta A \over \delta t}=0.2(10t)+0.4t2t{A \over {10t}}\] But I don't know if that's right. Please help.
 2 years ago

TuringTest Group TitleBest ResponseYou've already chosen the best response.0
oh that language filter, lol
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.