## Math equation problem

Asking for a friend: I have a question about how to work out a student's exam mark. Unit 1 is worth 60%, Unit 2 is worth 40%. Both units are marked out of 80. For example, a student scores 67/80 on unit 1 and 69/80 on unit 2. What is their overall mark? Thanks for any help!
posted by charlen on May 28, 2015 - 9 answers

## Converting Equation Editor 3.1 objects to Office 2010 Equation Text

Is there any way to convert equation objects made in Equation Editor 3/3.1 into the updated, direct in-line text in the new Equation Tool for Office 2007/2010?
posted by XQUZYPHYR on Jun 30, 2014 - 1 answer

## Calculating the average wait time for a book on hold at the library (or "Why didn't they teach something useful like this in library school?"

Is there an equation for figuring out the average wait time for a book on hold at the library. Or how to figure out the average wait time I have left for a book I put on hold because I'm dying to read the rest of it.
posted by gov_moonbeam on Oct 13, 2011 - 10 answers

## Equation help

What on earth is this equation? Sqty = Mvol / Bpos (in case the picture doesn't work)
posted by sperose on Jul 17, 2011 - 5 answers

## What does a bivariate cubic polynomial look like?

What does a bivariate cubic polynomial look like?
posted by tybeet on Jul 13, 2011 - 9 answers

## Does this tattoo equation mean to you what I mean it to?

Math and science geeks, does this fake equation make sense? 'delta' = c ... meaning "change is constant".
posted by attercoppe on May 15, 2011 - 33 answers

## Critical constants by simulation.

I am wondering if there are generally accepted ways of getting the critical constants (acentric factor, critical pressure and temperature) of a substance from a simulation of some sort (i.e. quantum chemistry)
posted by selenized on Apr 12, 2011 - 3 answers

## What the heck is an imaginary exponent?

What does it mean to raise a number to an imaginary power?
posted by slappy_pinchbottom on Mar 16, 2011 - 29 answers

## How to manipulate "12 = x - (square root of x)" into "x="

The solution to 12 = x - (square root of x) is 16, but how do I manipulate the equation to show that?
posted by Wanderboy on Feb 23, 2011 - 47 answers

## Ah! Real, living story problems!

Math Filter: I am trying to find a name for this equation. I am not sure if I can solve it given the information that I currently have.
posted by occidental on Jan 17, 2011 - 14 answers

## Principle domain of a polar equation?

I need help understanding the "principle domain" (a term only my professor seems to use) of a polar function. That is, how do I find the smallest value delta such that [0,delta] plots all of the unique points on the curve; any values greater than delta re-trace points. I suspect that if MeFi could identify the more common name for this, uh, procedure, I'd be set.
posted by phrontist on Aug 4, 2010 - 10 answers

## What part of [equation] don't I understand? Most of it.

Help me understand my hard-to-understand calculus shirt.
posted by wanderingmind on Jul 5, 2010 - 9 answers

## What equation should I use to calculate the number of miles in a degree of longitude for a given latitude?

What equation can I use to calculate the number of miles in a degree of longitude for a given latitude?
posted by Glendale on Aug 19, 2008 - 9 answers

## Math equation / algorithm for a database

I'm looking for some help with a math equation / algorithm I'm trying to create. I'm a programmer by trade and not very good at math so I'd like some help with this or perhaps a site where I could pay someone to come up with the equation I'm looking for. I considered rentacoder or elance however I'd be concerned if the companies there had the proper math knowledge. A lot of claims get made on those sites that turn out to be false.
posted by JohnGL on Jul 3, 2008 - 6 answers

## How many people will need to be given piggybacks in 472 years?

Help with a large, stupidly theoretical question involving sea rise, population growth, and human development... should be fun.
posted by omnigut on Jun 12, 2008 - 18 answers

## Is there a mathematical formula relating time and memory?

Is there a mathematical formula relating time and memory?
posted by bru on Jan 31, 2006 - 16 answers

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