Answered


Every five years in March, the population of Norwood is recorded. In 2010, Norwood had a population of 4,500. From 2010 to 2015, the population increased by 20%. From 2015 to 2020, the population decreased by 3%. What was the population of Norwood in 2020



Answer :

Answer:

  • Population in 2020 = 5,238

Step-by-step explanation:

Population of Norwood in 2010: 4,500

Population is recorded every 5 years

From 2010 to 2015 population increased by 20%

  • Increase of 20% means the population increases by 20% of 4500
    Absolute increase =4500 x 20%
    = 0.2 x 4500
    = 900
  • Actual Population in the year 2015
    = 4500 + 900
    = 5400

From 2015 to 2020, the population decreased by 3%

  • The absolute decrease = 5400 x 3%
    = 5400 x 0.03
    = 162

  • The actual population in 2020
    = 5400 - 162
    = 5,238