With 1 hub, you will start earning at the rate of approx. $0.001 or so per visitor of your page, if you had signed up under HP Ads program. If you had signed up for Google Adsense, then if at all any reader of your article clicks any Google ads, you may get some pennies.
Suppose you get, say 5 visitors to your article per day, you would get approx. $0.23 or so in a month!
There are people in HP who have hundreds of articles and earning a paltry $0.3 or so per day!
By the way, who told you that you will start making money in HP by posting 1 article?!