02-11-2008, 12:10 PM
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#6
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Prepping...
Join Date: Jan 2005
Location: Here, there, everywhere
Posts: 11,405
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Quote:
Originally Posted by blueerica
I also am a heavy user of the cross-multiply and divide technique, which is a way I tend to represent "this is to this as that is to that" mathematically. So, you could cross-multiply 4.8 and 100 to get 480. Then divide that by 7 which equals the same thing I told you earlier. Sort of a 4.8 is to 7 as X is to 100 set up.
I think I made that more complicated than it needed to be.
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Brain melting.
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