Final Answer:
The 15% tip on a bill amounts to the tip being calculated as 0.15×(total bill amount). To calculate the total bill including the tip, add the tip amount to the original bill amount.
Step-by-step explanation:
When leaving a 15% tip, the first step is to compute the tip amount based on the total bill. To do this, multiply the total bill amount by 0.15. For instance, if the bill is $100, the tip would be 0.15 × 100 = $15.
Now, to determine the total bill including the tip, simply add the tip amount to the original bill. Using the previous example, if the bill is $100 and the tip is $15, the total bill to be paid becomes $100 + $15 = $115.
The tip percentage can vary based on individual preferences or customary practices. To calculate other tip percentages, replace the 15% with the desired percentage (expressed as a decimal) and perform the same calculation to find the tip amount. Adding this tip to the original bill will provide the total bill including the tip. Remember, tipping is often considered an acknowledgment of good service and can range from 10% to 20% or more, depending on various factors such as service quality, location, and personal discretion.