Problema Solution
Data from the US Postal Service show in 2007 the post office handled 212.2 billion pieces of mail; in 2008 the volume of mail was 4.5 percent lower than its 2007 level. The volume declined again in 2009 to 176.7 billion pieces.
Find the volume of mail handled by the post office in 2008. (Round your answer to one decimal place.)
Answer provided by our tutors
If the decline is 4.5% then the volume is 100 - 4.5 = 95.5% of 212.2 billion or:
0.955*212.2 = 202.651 billion = 202.7 billion pieces of mail approximately.