Ooops!
I expressed that (below) backwards, didn't I (in two ways, as a
matter of fact).
On 2007 Oct 9 , at 1:40 PM, I (Bill Hooper) wrote:
if fuel consumption is known in miles per gallon (call it "C" for
"consumption") and
one desires fuel economy in litres per 100 kilometres (call it "E"
for "economy") then
C = 235/E
The equation was correct but (as shown) it describes how to find C
when you know E. (I said "find E when you know C".)
I also defined the terms "E" and "C" incorrectly (or at least the
reverse of what I intended). Fuel economy "E" should be miles per
gallon (it is more Economical to get more distance for each volume of
gasoline used) while "C" should be litres per 100 km (since more
litres burned corresponds to greater Consumption of gasoline). That's
what I meant to say. I defined each as I meant to defined the other.
Since the can also be written as E = 235/C
it is clear that it works either way, even if you forget which is which.
Bill Hooper
73 kg body mass*
Fernandina Beach, Florida, USA
* plus or minus a kilogram or so.