Question

wendy took her brother eliot to lunch at a restaurant. The cost of the food was 40 before tax to tip. The tax was 4% of the cost of the food and the tip was 16% of the pre-tax amount. What was the total cost of eating lunch at the restaurant?

Answer 1

To calculate the total cost of Wendy's lunch with her brother, including tax and tip, we multiply the cost of food by the percentages of tax and tip to get the additional amounts, then sum everything together. The final total cost for the meal is $48.00.

Step-by-step explanation:

The subject of Wendy taking her brother Eliot to lunch involves calculating the total cost including tax and tip, which is a mathematics problem, particularly one that could be encountered by middle school students learning about percentages.

First, we need to calculate the tax. Wendy's food cost is $40, and the tax is 4% of this amount. To find the tax, we convert the percent to a decimal and multiply by the cost of the food:

0.04 × $40 = $1.60

Next, we find the tip amount. The tip is 16% of the pre-tax amount of $40. Again, we convert the percent to a decimal and multiply by the cost:

0.16 × $40 = $6.40

The total cost of eating lunch at the restaurant, including the tax and tip, is:

$40 (cost of food) + $1.60 (tax) + $6.40 (tip) = $48.00

Therefore, the total cost for Wendy and Eliot's lunch is $48.00.