Question

78 million in scientific notation

Answer 1

`=78\cdot1,000,000=78\cdot10^6=7,8\cdot10^7`

Answer 2

`78\ million=7.80* 10^7`

Explanation:

A number N can be written in scientific notation as :

`N=p{\circ}0* 10^q`

Where

p is the any real number

q is any integer

Here, the given number is 78 million. Firstly, we must know meaning of 1 million.

Since,
`1\ million=10^6`

`78\ million=78.0* 10^6`

To convert the above number in scientific notation, we can shift the decimal before 8 such that,

`78\ million=7.80* 10^7`

Hence, this is the required solution.