Solve the problem.
-Doctors predict that by administering a vaccine, the number of new cases of a certain disease will decrease by half each year. If 1200 people were afflicted with the disease in 2000, estimate the number of new cases in 2005.
(Round to the nearest whole number, if necessary.)
A)75 new cases in 2005
B)150 new cases in 2005
C)19 new cases in 2005
D)38 new cases in 2005

Question

Quizplus · Accepted Answer

The number of cases decreases by half each year. Starting with 1200 in 2000, the sequence is: 2001: 600, 2002: 300, 2003: 150, 2004: 75, 2005: 38.

Solve the Problem. -Doctors Predict That by Administering a Vaccine, the Number of the Number