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Find a Function C?
As of January 2013, the U.S. Postal
Service charged $0.46 postage
for first-class letters weighing up
to and including 1 ounce, plus a
flat fee of $0.20 for each
additional or partial ounce up to
and including 3.5 ounces.
First-class letter rates do not
apply to letters weighing more
than 3.5 ounces.
Source: U.S. Postal Service
Find a function C that models the first-class postage charged, in dollars, for a letter weighing w ounces. Assume w > 0.
- JimLv 71 month ago
C = $0.46 + $.20 * (integer of weight over 1)
The actual formula is rather difficult without programming.