# Question #5ff20

##### 1 Answer

Aug 14, 2017

The tip should be $5.70.

#### Explanation:

To calculate the tip, you simply multiple 38 by 0.15. That yields 5.7 as the tip.

A helpful way to do this when you are out to dinner is to calculate 10% of the bill by moving the decimal, and then adding half that amount to itself. That will give you 15% of the bill.

Ex.