Question

During 2002 and 2003, a total of 9316 people were infected with a specific virus. In 2003, 2.35 times as many people were infected as in 2002. How many people were infected each year? Round your answer to the nearest whole number.

Answer 1

x = 2002, y = 2003

x + y = 9316
y = 2.35x

x + 2.35x = 9316
3.35x = 9316
x = 9316 / 3.35
x = 2780.8 rounds to 2781 <=== year 2002

y = 2.35x
y = 2.35(2781)
y = 6535.3 rounds to 6535 <== year 2003