Khan Academy $\newline$ Get Al Tutoring $\newline$ NE: $\newline$ Quiz $1$ $\newline$ Google Classroom $\newline$ New York City has a population density of $27$ , $000$ residents per $1$ square mile. The area of New York City is $301$ square miles, and there is approximately $1$ subway car for every $1$ , $300$ New York City residents. Rounded to the nearest one hundred subway cars, approximately how many total subway cars are in New York City? $\newline$ Show calculator $\newline$ How do I enter a student-produced response on the SAT? Show me! $\vee$ $\newline$ Report a problem

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Get Al Tutoring

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NE:

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Quiz

1

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Google Classroom

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New York City has a population density of

27

000

residents per

1

square mile. The area of New York City is

301

square miles, and there is approximately

1

subway car for every

1

300

New York City residents. Rounded to the nearest one hundred subway cars, approximately how many total subway cars are in New York City?

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Show calculator

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How do I enter a student-produced response on the SAT? Show me!

\vee

\newline

Report a problem

Calculate Total Population: First, calculate the total population of New York City by multiplying the population density by the area of the city. $\newline$ Population density = $27,000$ residents per square mile $\newline$ Area of New York City = $301$ square miles $\newline$ Total population = Population density $\times$ Area $\newline$ Total population = $27,000$ residents/mile $^2$ $\times$ $301$ miles $^2$
Find Total Population: Perform the multiplication to find the total population. $\newline$ Total population = $27,000 \times 301$ $\newline$ Total population = $8,127,000$ residents
Calculate Subway Cars: Next, calculate the number of subway cars by dividing the total population by the number of residents per subway car. $\newline$ Residents per subway car = $1,300$ residents/car $\newline$ Number of subway cars = Total population / Residents per subway car $\newline$ Number of subway cars = $8,127,000$ residents / $1,300$ residents/car
Find Number of Subway Cars: Perform the division to find the number of subway cars. $\newline$ Number of subway cars = $8,127,000 / 1,300$ $\newline$ Number of subway cars $\approx 6,251.53846$
Round Number of Subway Cars: Round the number of subway cars to the nearest one hundred. $\newline$ To round to the nearest one hundred, look at the tens digit. If it is $5$ or more, round up. If it is less than $5$ , round down. $\newline$ In this case, the tens digit is $5$ , so we round up. $\newline$ Number of subway cars rounded = $6,300$