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The Jayden family eats at a restaurant that is having a 15% discount promotion. Their meal costs $78.13 before the discount, and they leave a 20% tip. If the tip applies to the cost of the meal before the discount, what is the total cost of the meal? Round your intermediate calculations and answer to the nearest cent

Respuesta :

mathstudent55
You must add the cost of the meal before discount to the tip amount, and then subtract the discount amount.

Here are the amounts you need to deal with.

Cost of meal before discount: $78.13
Tip: 20% of $78.13
Discount: 15% of $78.13

Cost of meal: $78.13
Tip: 20% of $78.13 = 20% * $78.13 = 0.20 * $78.13 = $15.63
Discount: 15% of $78.13 = 15% * $78.13 = 0.15 * $78.13 = $11.72

Total cost of the meal = cost before discount + tip amount - discount amount

Total cost of meal = $78.13 + $15.63 - $11.72

Total cost of meal = $82.04

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