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# How to convert ml/min -1 to ml/mil?

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1. This is for a science paper but I guess this a maths question.

It asks me how much of a substance is produced in 1 minute. The previous answer to the previous question was, say, 50 ml/min to the minus one (can't insert the proper notation here).

So how do I get ml/min-1 into ml/min?

Thanks. I know this is probably really basic, I just can't remember it.
2. (Original post by KatieBlogger)
This is for a science paper but I guess this a maths question.

It asks me how much of a substance is produced in 1 minute. The previous answer to the previous question was, say, 50 ml/min to the minus one (can't insert the proper notation here).

So how do I get ml/min-1 into ml/min?

Thanks? I know this is probably really basic, I just can't remember it.
Are you sure the question says ? If so, that's very weird. Could you possibly post a picture of the question or so?
3. (Original post by Zacken)
Are you sure the question says ? If so, that's very weird. Could you possibly post a picture of the question or so?
Hi, sorry I think I may not have been clear. It's written as 50 ml min-1 (the -1 is to the power of).

I'm trying to work out what that is just in normal minutes.
4. (Original post by KatieBlogger)
Hi, sorry I think I may not have been clear. It's written as 50 ml min-1 (the -1 is to the power of).

I'm trying to work out what that is just in normal minutes.
Ha, that makes much more sense. The -1 as the power simply means .

I.e: You read 50 ml min-1 as 50 ml/min as 50 ml per minute as in one minute, there is 50 ml.
5. (Original post by Zacken)
Ha, that makes much more sense. The -1 as the power simply means .

I.e: You read 50 ml min-1 as 50 ml/min as 50 ml per minute as in one minute, there is 50 ml.
Thanks so much. Would you mind explaining what the minus 1 means and why it needs to be there?
6. (Original post by KatieBlogger)
Thanks so much. Would you mind explaining what the minus 1 means and why it needs to be there?
Do you know your indices laws? is another way of writing . So when we write something to the power minus one, we really mean 1/something. But we use the minus one to save space.

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