Adam celebrated his eighteenth birthday with friends at a Chinese restaurant. The bill came to $287.69 without tax. The service was quite good so he decided to tip the waiter 20 percent. What is the amount of tip that Adam and his friends should leave for the waiter? How much is the total bill (excluding tax) ?

Question

Mathematics

Haven Cobb

Today, 08:11

Adam celebrated his eighteenth birthday with friends at a Chinese restaurant. The bill came to $287.69 without tax. The service was quite good so he decided to tip the waiter 20 percent. What is the amount of tip that Adam and his friends should leave for the waiter? How much is the total bill (excluding tax) ?

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Elliott Parrish · Answer 1

Total bill excluding tax is $287.69

the 20%

here's how I do it in restaurants

10% is just move decimal to left 1 place

20% is double of that

so

10% of 287.69 is 28.769

20% is double of that or 57.538 or rounded to 57.54

tip is $57.54

total bill (exclude tax) is $287.69