# Question #deed8

##### 1 Answer
Apr 7, 2017

(a) $150000000$ km
(b) $1.5 \times {10}^{8}$ km

#### Explanation:

One hundred and fifty million kilometres:

(a) $150000000$ km

In scientific notation, we want to keep just one digit to the left of the decimal. Rest are converted to the power of 10.

(b) $1.5 \times {10}^{8}$ km