Question

The population of a city has been increasing by 2%

annually. The sign shown is from the year 2000.
(a) Write an exponential growth function that represents
the population t years after 2000.
(b) What will the population be in 2022? Round your
answer to the nearest thousand.

Answer 1

Total number of people surveyed = 118

Number of people who own dogs = 78

Number of people who own cat = 44

Number of people who own both cats and dogs = 26

Number of people who only own dogs = 78 - 26 = 52

Number of people who own only cats = 44 - 26 = 18

Only dog owners + Only cat owners + Both + Neither = Total people surveyed

52 + 18 + 26 + Neither = 118

Neither = 22(answer)