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Chapter 3: Q. 3.29 (page 321)

Cierra and her sister enjoyed a dinner in a restaurant and the bill was $81.50. If she wants to leave 18%of the total bill as her tip, how much should she leave?

Short Answer

Expert verified

If Cierra wants to leave 18%of the total bill as her tip, she should leave $14.67.

Step by step solution

01

Step 1. Given that, 

The total bill is, $81.50.

The percent she needs to leave as a tip is,18%.

It is mentioned that, Cierra needs to leave 18%of 81.50.

Let t=Amount of bill.

Let us create an equation by using the given information.

t=18%脳81.50

02

Step 2. Now simplify the obtained equation.

t=18100脳81.50t=0.18脳81.50t=14.67

03

Step 3. Let us check the answer.

(20%)脳80=20100脳80=0.2脳80=16

Yes, 20%of 80is 16.

If Cierra wants to leave 18%of the total bill as her tip, she should leave$14.67.

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