Question

Question
China and India are the most populous countries in the world. China’s population is approximately 1.45×109
, while India’s population is approximately 1,400,000,000. How many more people live in China than in India?(1 point)
Responses

5×107
5 times 10 superscript 7 baseline

5×109
5 times 10 superscript 9 baseline

5×108
5 times 10 superscript 8 baseline

5×1010

Answer 1

To find out how many more people live in China than in India, we need to perform a simple subtraction of their populations.

China's population: \(1.45 \times 10^9\) (which is 1,450,000,000)

India's population: \(1,400,000,000\) (which can also be written as \(1.4 \times 10^9\))

Now, we can calculate the difference:

\[
1.45 \times 10^9 - 1.4 \times 10^9 = (1.45 - 1.4) \times 10^9 = 0.05 \times 10^9
\]

Now converting \(0.05 \times 10^9\) to scientific notation:

\[
0.05 \times 10^9 = 5 \times 10^{-2} \times 10^9 = 5 \times 10^7
\]

So, the number of more people living in China than in India is \(5 \times 10^7\).

The correct response is:

**5×10^7** (5 times 10 superscript 7 baseline)