Attn. Math Experts (percentages/ratios)

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pamnock

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I want to be sure I'm doing this right (I have a nursing math exam in a couple weeks - applicants are expected to get a minimum of 90%!).



1. Change the following percentages to ratios and to decimals:



16 2/3%



.4%



9/10%



37.5%
 

missyscove

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I'm not sure exactly what they're looking for, but this is what I'd do. (I'm not exactly a math expert... I have up to calculus I (AP Calc AB) and some college stats, but I think that's more than enough for some not too complex percentages.) :)

0.166(repeating) or 16.6 (repeating)/100

0.004 or .4/100 or 4/1000

This one confuses me a bit... .9%? so 0.009 or .9/100 or 9/1000

0.375 or 37.5/100 or 375/1000
 

pamnock

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THANK YOU!

That's exactly what I got, so I must be on the right track! (there's no answer key with the practice exam the school sent in the mail.) I got an A in algebra and chemistry, but am weak on some of the basics. I'm pretty sure we won't be allowed to use a calculator for the preliminary test, so I've got to keep very careful track ofdecimal points when converting, dividing, etc.: )
 

missyscove

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I understand, just remember that the word percent (%) really means "out of one hundred" so if you take the number before the % and put it over 100, you're good to go. Then move your decimals from there, and I always find it helps to remember tenths place, hundredths place, thousandths place, etc.
Can you talk my professors into putting this on my finals?
 
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