Question

3. Keisha bought dinner at Chili's Restaurant for $40.00. She paid a 7% sales tax and a 15% tip for good service on the cost of the dinner. 3. Which of the following is the total cost that Keisha paid for dinner, including the tax and tip? *

Answer 1

total cost of the dinner is 40 $

sale tax = 7% of 40 $

`\begin{gathered} =40*(7)/(100) \\ =(14)/(5)=2.8\text{ \$} \end{gathered}`

so the sales tax is 2.8 $

tip = 15% of 40 $

`\begin{gathered} =40*(15)/(100) \\ =6\text{ \$} \end{gathered}`

so, the tip is 6 $

so the total amount paid is,

2.8 + 6 + 40 = 48.8 $

so the answer is 48.8 $