Jacob rented a bike from darryl's bikes. it cost $19.70 plus $2.30 per hour. if jacob paid $24.30 then he rented the bike for how many hours?

Jacob rented the bike for 2 hours

$24.30-$19.70= 4.6

4.6/$2.30= 2

5 minutes is 8.33% of an hour. 

Explanation:
An hour is composed of 60 minutes. You can find the percentage by dividing 5 minutes by 60 minutes. You get a decimal of 0.083. Move the decimal point two places to the right to get the percentage, and you get 8.33%.