In 2013, New York City (NYC) and Los Angeles (LA) has the highest populations of any cities in the United States. NYC’s population was about 8.1 × 10^6 and LA’s population was about 3.8 × 10^6. What is the population of these two cities combined written in scientific notation?

Respuesta :

The population of these two cities combined in scientific notation is 11.9 x [tex]10^{6}[/tex]

Step-by-step explanation:

1a. Population of NYC is 8.1 x [tex]10^{6}[/tex]

1b. Population of LA is 3.8 x [tex]10^{6}[/tex]

2.To find total population of the two cities combined,

2a. Add population of NYC and LA

Total population = NYC's population + LA's population

Total population = (8.1 x [tex]10^{6}[/tex] ) + (3.8 x [tex]10^{6}[/tex] )

2b. Take [tex]10^{6}[/tex] common

Total population = [tex]10^{6}[/tex] * (8.1 + 3.8)

Total population = [tex]10^{6}[/tex] * 11.9

Therefore, the population of these two cities combined in scientific notation is 11.9 x [tex]10^{6}[/tex]

Keyword: Scientific notation

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