Question

In 2007, the population of North America was approximately 5.15 x10^8 people and the population of South America was approximately 3.04 x10^8 people. What is the combined population of North and South America for this year?
Responses

Answer 1

To find the combined population of North and South America in 2007, we can simply add the two populations together:

Population of North America: \( 5.15 \times 10^8 \)
Population of South America: \( 3.04 \times 10^8 \)

Now, add the two values:

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

Calculating the sum \( 5.15 + 3.04 \):

\[
5.15 + 3.04 = 8.19
\]

Now, we can express the combined population as:

\[
8.19 \times 10^8
\]

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