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What to do when you can't remember a formula for a word problem?

by Tyrion101
Tags: formula, remember, word
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Tyrion101
#1
Oct19-13, 12:52 PM
P: 147
How do you reason it out? I get confused on problems that involve distance rate and time. What wording should I look for to tell me if s should be positive and the number should be negative or any variation in between? Should there never be a negative involving a DRT formula?
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phinds
#2
Oct19-13, 01:22 PM
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P: 6,335
what often works is just do math that makes the units work out right.


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