How Hot Is That?
The
Problem:
Which
is hotter � a blistering 43�C in the Arizona desert or a dazzling 110�F in
Kos?
You can
convert from Centigrade to Fahrenheit temperatures using the exact, but awkward,
formula
or
the quick, but approximate, formula F = 2C + 30
What we want
to know is:
1
Does the quick formulae ever give exactly the right answer?
2
For what range of Centigrade temperatures does the quick formula give an
answer that�s within 5�F of the correct value?
3
Is the quick formula good enough for our British climate?
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