As of 2016, New York City has a population of 8.55 million and a land area of 300 square miles. Manhattan is a section of New Your City that has a land area of 23 square miles and a population of 1.64 million. How much greater is the population density of Manhattan than that of New York City?

42804 people per square mile

Step-by-step explanation:

As we know Population density =

Given, population of New York City =  8.55 million

Area of New York City  = 300 square miles

Then, population density of New York City =

  [1 million = 1,000,000]

Population of Manhattan =  1.64 million = 1640000

Area of Manhattan  = 23 square miles

population density of Manhattan =

Difference = 71304 - 28500 =42804

Hence, population density of Manhattan is 42804 people per square mile greater than that of New York City.

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet

answer: 1 + 1 = 11

step-by-step explanation: