Final answer:
The portion of allowable charges is the percentage of the bill one must pay. To calculate a 20% tip for a $30.00 bill, multiply $30.00 by 0.20 to get a $6.00 tip. The total amount paid, including the tip, would then be $36.00.
Step-by-step explanation:
The portion of the allowable charges refers to the percentage of a bill that a person is responsible for paying. For example, if a bill amounts to $30.00 and there is a tip rate of 20%, the portion of the allowable charges that the person would pay in tip would be $6.00 (which is 20% of $30.00).
To calculate the tip on a bill, you multiply the total amount of the bill by the tip percentage. For instance, if the total bill is $30.00 and you want to leave a 20% tip, you would calculate as follows:
- Tip amount = Total bill × Tip percentage
- Tip amount = $30.00 × 0.20
- Tip amount = $6.00
Thus, the total amount paid including the tip would be the sum of the original bill and the tip:
- Total amount paid = Total bill + Tip amount
- Total amount paid = $30.00 + $6.00
- Total amount paid = $36.00