Question

The population of the United States is about 3.2x10^8 the population of the United States is about 80 times the population of Oregon write the population of Oregon in scientific notation

Answer 1

The population of Oregon in scientific notation is 4×
`10^(6)`

Explanation:

* Lets explain the scientific notation

- Scientific notation is the way to write very large numbers or very small

numbers

- Ex: instead of writing 0.0000000056, we write 5.6 × 10^(-9)

Instead of writing 450000000, we write 4.5 × 10^(8)

* Lets solve the problem

- The population of the United States is about 3.2 × 10^8

- the population of the United States is about 80 times the population

of Oregon

- That means population of United States = 80 × population of Oregon

∵ Population of United States = 3.2 × 10^8

∴ 3.2 × 10^8 = 80 × population of Oregon

- Divide both sides by 80

∴ 4000000 = population of Oregon

- Lets write the number in scientific notation

∵ There are six zero

∴ 4000000 = 4 ×
`10^(6)`

∴ The population of Oregon in scientific notation is 4×
`10^(6)`