a family eats out at a restaurant and the total for their meals is $73.89. they also pay sales tax of 5.8%…

a family eats out at a restaurant and the total for their meals is $73.89. they also pay sales tax of 5.8% and leave a tip for their server. if the family leaves a total of $93, which of the following might be a description of the service they received? a. they left a 10% tip, so the service was probably below average. b. they left a 15% tip, so the service was probably average. c. they left a 20% tip, so the service was probably above average. d. they left a 25% tip, so the service was probably outstanding.

a family eats out at a restaurant and the total for their meals is $73.89. they also pay sales tax of 5.8% and leave a tip for their server. if the family leaves a total of $93, which of the following might be a description of the service they received? a. they left a 10% tip, so the service was probably below average. b. they left a 15% tip, so the service was probably average. c. they left a 20% tip, so the service was probably above average. d. they left a 25% tip, so the service was probably outstanding.

Answer

Explanation:

Step1: Calculate sales - tax amount

The sales - tax rate is $5.8%=0.058$. The cost of the meals is $73.89$. So the sales - tax amount is $73.89\times0.058 = 73.89\times\frac{58}{1000}=4.28562\approx4.29$.

Step2: Calculate tip amount

The total amount paid is $93$ and the cost of meals plus sales - tax is $73.89 + 4.29=78.18$. So the tip amount is $93−78.18 = 14.82$.

Step3: Calculate tip percentage

The tip percentage is $\frac{14.82}{73.89}\times100%\approx20%$.

Answer:

c. They left a 20% tip, so the service was probably above average.