# Talk:Rate (mathematics)

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Yamara 23:10, 5 May 2008 (UTC)

## Discussion

hello i want to see a table of reactivity --193.195.198.254

You should ask for this on Talk:Reactivity. --Toby Bartels 15:35, 2 March 2007 (UTC)

## Definition

I do not see that 'meters' and 'seconds' are the same unit, what would in fact be a 'ratio'. That definition differs completely from that e.g. in the Oxford Dictionary.HJJHolm (talk) 13:43, 15 July 2008 (UTC)

Your point regarding that the two measurements is taken. They can be the same unit or different units.+mt 14:33, 15 July 2008 (UTC)

## Rate is all about time

Rate is a measure of something over time. And the article should say that. Re-write. Paul Beardsell (talk) 07:23, 1 March 2009 (UTC)

Your claim is incorrect. A rate is simply a ratio of something per something used in a particular context. The denominator is often time, but it doesn't need to be. Examples of rates that are not "something over time" include exchange rate, inflation rate, unemployment rate. +mt 17:59, 1 March 2009 (UTC)

Inflation rate is the change in prices per unit time. The rate of change is always (I contend) per unit time. Where you are correct is when "rate" is used instead of "ratio", often incorrectly. Unemployment rate is a proportion and really unemployment ratio. The growth in unemployment is unemployment rate. Like it or not, in maths a "ratio" is a fraction or a proportion and is often dimensionless. "Rate" is usually change per unit time. Paul Beardsell (talk) 23:13, 1 March 2009 (UTC)

English is imprecise. And there is room for a disambiguation page and, what do you know, there is one: See rate. But the name of this article is "Rate (mathmatics)". Reverting. Please do not revert back to what I think is a poorly written and imprecise version of the article. Thanks. Paul Beardsell (talk) 23:13, 1 March 2009 (UTC)