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KengaRu [80]
3 years ago
11

After eating at your favorite restaurant,you know that the bill before tax is $52.60 and that the sales tax rate is 8%. You deci

de to leave a 20% tip for the waiter based on the pre-tax amount. How much should you leave the waiter? How much will the total bill be,including tax and tip?
Mathematics
2 answers:
uranmaximum [27]3 years ago
6 0

Answer:

Step-by-step explanation:

After eating at your favorite restaurant,you know that the bill before tax is $52.60 and that the sales tax rate is 8%. This means that the amount of sales tax that you would pay is

8/100 × 52.6 = $4.208

You decide to leave a 20% tip for the waiter based on the pre-tax amount. This means that the amount you would leave as tip for the waiter is

20/100 × 52.6 = $10.52

The total amount that you would pay is

52.6 + 4.208 + 10.52 = $67.328

slega [8]3 years ago
3 0
The total bill would be 67.32 because you have to multiply the tax and tip then add them together
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Answer:

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Step-by-step explanation:

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\begin{array}{cccccc}{Class} & {51-58} & {59-66} & {67-74} & {75-82} & {83-90} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}

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For 51 - 58.

x = \frac{1}{2}(51+58) = \frac{1}{2}(109) = 54.5

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For 67 - 74

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For 83 - 90

x = \frac{1}{2}(83+90) = \frac{1}{2}(173) = 86.5

So, the table becomes:

\begin{array}{cccccc}{x} & {54.5} & {62.5} & {70.5} & {78.5} & {86.5} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}

The mean is then calculated as:

Mean = \frac{\sum fx}{\sum f}

Mean = \frac{54.5*4+62.5*3+70.5*11+78.5*13+86.5*4}{6+3+11+13+4}

Mean = \frac{2547.5}{37}

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s^2 =\frac{\sum (x - \overline x)^2}{\sum f - 1}

So, we have:

s^2 =\frac{(54.5-68.9)^2+(62.5-68.9)^2+(70.5-68.9)^2+(78.5-68.9)^2+(86.5-68.9)^2}{37 - 1}

s^2 =\frac{652.8}{36}

s^2 =18.1 -- approximated

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