Question

london has a population of 2x10^4 and New York has a population of 6x10^5. Find which population is bigger and by how much.

Answer 1

Answer: New York’s population is bigger than London’s population.

Step-by-step explanation: You use the sign of the exponent to move the decimal the appropriate amount of places either to the left or right. London’s population is 20,000, and New York’s population is 600,000. There is a difference of 580,000.

Answer 2

Answer: New York population is bigger by 580,000 ,which can be written in standard form as 5.8 x
`10^(5)`

Explanation:

2 x
`10^(4)` can be written in ordinary number as 20,000

6 x
`10^(5)` can be written in ordinary number as 600,000

With this , it is clear that New York has a larger population.

The difference in their population will be

600,000 - 20,000 = 580,000