The population of a city in 2005 was 18000. by 2010 , the city’s population had grown to 32800 . if the population growth follows a linear model, what is the projected population for 2015?

The projected population for 2015 is 47600.

Step-by-step explanation:

Population in the year 2005 = 18000

Population in the year of 2010 = 32800

Since Growth follow linear model means growth rate is constant

Increase in population 5 year .i.e, from 2005 to 2010 = 32800 - 18000 = 14800

So in next 5 year also population increases by 14800.

⇒ Population in year 2015 = 32800 + 14800 = 47600

Therefore, The projected population for 2015 is 47600.

step-by-step explanation:

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6