Question

A family of five went out to dinner at HogTastic Pit BBQ. They all ordered the buffet and drink at $12.80 each. They left a 15% gratuity for the waitress on the after-tax bill. Based on a tax rate of 7.5%, they ended up paying a total of $ blank
for dinner.

Answer 1

Answer: $79.12

Step-by-step explanation:

$5 peopleeach order is worth \ 12.80 \begin{aligned}\therefore \text { Total bill } &=12.80 \times 5 \\&=64 \ \end{aligned}$

${Tax}: 7.5 \% \therefore Bill after tax \begin{aligned}&=64\left(\frac{100+7.5}{100}\right) \\&=64(1.075) \\&\text{Bill \ with \ tax}=68.8 \ \end{aligned}$

$Gratuity =15 \% of bill with tax \begin{aligned}\therefore \text { Gratuity} &=0.15 \times 68.8 \\&=10.32 \ \end{aligned} \therefore Ended up paying a total of =68.8+10.32 \ \ \ \ \ \ \ \ \ \ =\ 79.12$