SOLUTION: For large parties, many restaurants automatically add an 18% gratuity to the bill. If the total bill, including gratuity is $163.43, what was the bill before adding the gr

SOLUTION: For large parties, many restaurants automatically add an 18% gratuity to the bill. If the total bill, including gratuity is $163.43, what was the bill before adding the gr

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Question 430644: For large parties, many restaurants automatically add an 18% gratuity to the bill. If the total bill,
including gratuity is $163.43, what was the bill before adding the gratuity?
Answer by jorel1380(3719) (Show Source): You can put this solution on YOUR website!
If the bill after gratuity is $163.43, and the restaurant added 18%, then:
1(X)+18%(X)=163.43
(100%+18%)(X)=163.43
1.18X=""
X=163.43/1.18
X=138.5
The meal cost $138.50.
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