need to solve a real world problem

Question

Sally and her friend went to a restruant for dinner. The food total before tax and tip was $27. The tax rate is 8.9%. Sally also wants to add a 15% tip for excellent service before tax.

how much is tax?

how much was the tip?

what was the total cost for food,tax and tip??

Answer 1

8.9 % tax on $27 is $2.40

15% tip will be calculated on 27 +tax (2.40) which will be $4.41

so total payment including tax and tip will be 27 + 2.40 + 4. 41 + $33.81

Answer 2

If Sally is trying to figure out how much the tax is, she would need to multiply $27 x .089. The actual tax is $2.403, it's your best judgment to assume that the tax is $2.40.

If the price of the food is $27 and the tax is $2.41, the sum of those two numbers is $29.41. I would then multiply $29.41 x .15 in order to find the price of the tip. The product of $29.41 and .15 equals is $4.4115 it's your best judgment to assume that the tip is $4.41.

The cost of the food is $27, the cost of the tax is $2.40, and the cost of the tip is $4.41. The sum of all those numbers is $33.81 which is the cost of food, tax, and tip.