In 2007, the population of North America was approximately 5.15 x 10^(8) people and the population of South America was approximately 3.04 x 10^(8) people. What is the combined population of North and South America for this year?

Question

Responses:
8.19x10^(16) people
8.19x10^(9) people
8.19x10^(8) people
8.19x10^(64) people
8.19x10^(-9) people

Answer 1

To find the combined population of North and South America in 2007, we need to add the populations of both continents:

1. Population of North America: \( 5.15 \times 10^8 \) people
2. Population of South America: \( 3.04 \times 10^8 \) people

Now we add these two values together:

\[ 5.15 \times 10^8 + 3.04 \times 10^8 = (5.15 + 3.04) \times 10^8 = 8.19 \times 10^8 \]

So the combined population of North and South America in 2007 is \( 8.19 \times 10^8 \) people.

The correct response is:

8.19 x 10^(8) people