At the restaurant, the cost of the meal before tax was $40. The tax is 8.5%, and Sheri wants to leave at least an 18% tip. Explain how to approximate the total cost of the meal.

Question

Mathematics

Devyn Steele

22 February, 16:01

At the restaurant, the cost of the meal before tax was $40. The tax is 8.5%, and Sheri wants to leave at least an 18% tip. Explain how to approximate the total cost of the meal.

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Answers (1)

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Madden Sutton · Answer 1

18% + 8.5% = 26.5% which is close to 25%

25% of 40 is 10, 40 + 10 = 50

so the total bill would be just over $50

real cost:

40*0.085 = 3.40 = 40 + 3.40 = 43.40

43.40 * 0.18 = 7.81, 43.40 + 7.81 = 51.21