You are Here: Home >< A-levels

# differential chapter watch

1. two liquids x and y are flowing into a trough at the constant rate of 10 and 20 litres per minute respectively. the liquid in the trough is stirred continuously and pumped out at the rate of 30 litres per minute. initially the trough contains 200 litres of x and 100 litres of y. After t minutes the tank contains x litres of x. by considering the change in x in a small interval of 'lamda' time, show that

dx/dt = 10 - (x/10)
2. (Original post by samnb175)
two liquids x and y are flowing into a trough at the constant rate of 10 and 20 litres per minute respectively. the liquid in the trough is stirred continuously and pumped out at the rate of 30 litres per minute. initially the trough contains 200 litres of x and 100 litres of y. After t minutes the tank contains x litres of x. by considering the change in x in a small interval of 'lamda' time, show that

dx/dt = 10 - (x/10)
What have you tried?

TSR Support Team

We have a brilliant team of more than 60 Support Team members looking after discussions on The Student Room, helping to make it a fun, safe and useful place to hang out.

This forum is supported by:
Updated: August 17, 2016
Today on TSR

### Tuition fees under review

Would you pay less for a humanities degree?

### Can I get A*s if I start studying now?

Discussions on TSR

• Latest
Poll

## All the essentials

### Student life: what to expect

What it's really like going to uni

### Essay expert

Learn to write like a pro with our ultimate essay guide.

### Create a study plan

Get your head around what you need to do and when with the study planner tool.

### Resources by subject

Everything from mind maps to class notes.

### Study tips from A* students

Students who got top grades in their A-levels share their secrets

## Groups associated with this forum:

View associated groups
Discussions on TSR

• Latest

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE