Pregunta
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On date night, Manu and Kamia spent at an Italian restaurant.
a. If the sales tax rate on their meals is , find the sales tax amount on their meal.
2.28
b. If they left a tip worth of their meal (not including sales tax), how much did they leave as a tip?
c. What is the total price of their date night meal, including tax and tip?

Ask by Washington Rogers. in the United States
Mar 24,2025

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a. The sales tax amount is $2.28.
b. They left a tip of $28.59.
c. The total price of their date night meal, including tax and tip, is $145.22.

Solución

Let the meal’s printed price (before adding sales tax and tip) be
a. Sales Tax Amount
The sales tax rate is
Thus, the sales tax amount is
b. Tip Amount
They leave a tip equal to of the meal cost (excluding tax); that is,
The tip amount is then
c. Total Price Including Tax and Tip
The total is the sum of the base meal cost, the sales tax, and the tip:

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Beyond the Answer

To find the sales tax amount, you first convert the sales tax rate to a decimal by dividing by 100, which gives you . Then, multiply the total meal cost by the sales tax rate:
So, the sales tax amount is approximately .
Next, to calculate the tip, take the total meal cost of and find :
Thus, they left a tip of .
For the total cost of their date night meal, add the meal cost, sales tax, and tip:
Finally, the total price of their date night meal, including tax and tip, is .

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