You are Here: Home >< Maths

# connected rates of change c4 edexcel

Announcements Posted on
Last day to win £100 of Amazon vouchers - don't miss out! Take our quick survey to enter 24-10-2016
1. Can someone help with question 9 of exercise 4E, rates of change differentiation, cant get my head around it. From the Heinemann c4 textbook.
2. (Original post by bat_man)
Can someone help with question 9 of exercise 4E, rates of change differentiation, cant get my head around it. From the Heinemann c4 textbook.
If this is the question you're reffering to
Spoiler:
Show
You can form two equations, one which is given in the equation, dV/dt, and an equation for V which can be made by thinking about how volume is calculated.
From there, using those equations, you need to find a way to make an equation for dh/dt, can you think of how you could do this?
Spoiler:
Show
Also this would probably be better suited in the maths forum Zacken
3. Moved to maths, thanks Kayla!
4. (Original post by KaylaB)
If this is the question you're reffering to
Spoiler:
Show
You can form two equations, one which is given in the equation, dV/dt, and an equation for V which can be made by thinking about how volume is calculated.
From there, using those equations, you need to find a way to make an equation for dh/dt, can you think of how you could do this?
Spoiler:
Show
Also this would probably be better suited in the maths forum Zacken
Thanks a bunch, i figured out what to do now!
5. (Original post by bat_man)
Thanks a bunch, i figured out what to do now!
Great

## Register

Thanks for posting! You just need to create an account in order to submit the post
1. this can't be left blank
2. this can't be left blank
3. this can't be left blank

6 characters or longer with both numbers and letters is safer

4. this can't be left empty
1. Oops, you need to agree to our Ts&Cs to register

Updated: April 9, 2016
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:
Today on TSR

### How does exam reform affect you?

From GCSE to A level, it's all changing

Poll
Useful resources

### Maths Forum posting guidelines

Not sure where to post? Read here first

### How to use LaTex

Writing equations the easy way

### Study habits of A* students

Top tips from students who have already aced their exams