volume_mute
Tipping
publish date: 2025/05/10 04:52:40.126800 UTC
volume_muteAs a general rule, if the service in a restaurant is acceptable, a tip of 15% of the total bill should be left for the server. Estimate the 15% tip on a $77.55 dinner bill.
Answer = USD
Correct Answer
(1) 12
Explanation
We will find 10% and 5% of an approximation of $77.55. Then we will add those results. To find 15% of a number, find the sum of 10% of the number and 5% of the number.
To simplify the calculations, we will estimate the cost of the 77.55 USD dinner to be 80 USD. Then, to estimate the tip, we find 10% of 80 USD and 5% of 80 USD, and add
10% of 80 USD is 8 USD
5% of 80 USD (half as much as 10% of 80 USD) is 4 USD
The tip = 8 + 4 = 12 USD
The tip should be 12 USD
Reference
Mathematics for college students