1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
worty [1.4K]
3 years ago
12

Don and Marie like to go to a good restaurant. Dinners are $16 to $19 dollars with soup or salad. A beverage is $1.50. Dessert i

s $3.75. If one dinner is $16, the other is $19 and each diner has a beverage and dessert, what will the cost be if a 6% tax is charged and a 15% tip on the pre-tax amount is left?
Mathematics
2 answers:
lana [24]3 years ago
3 0

Hi there!

The correct answer is calculated like so:

16 + 19 + 3 + 3.75 + 3.75 = 45.5

45.5 * 0.06 = 2.73

45.5 * 0.15 = 6.83

45.5 + 2.73 + 6.83 = $55.06

Your friend, ASIAX

lina2011 [118]3 years ago
3 0

Answer: $55.055

Step-by-step explanation:

The cost of one dinner = $16+$1.50+$3.75=21.25

The cost of the other dinner = $19+$1.50+$3.75=24.25

The total cost of both the dinners = 21.25+24.25=\$\ 45.5

The 15% tax on the cost of dinners = 0.15\times45.5=\$\ 6.825

The 6% tax on the dinners =0.06\times45.5=\$2.73

The total cost of the dinners =\$\ 45.5+\$\ 6.825+\$\ 2.73=\$55.055

The cost of dinners if a 6% tax is charged and a 15% tip on the pre-tax amount is left =$55.055

You might be interested in
One factor in the development of tennis elbow, a malady that strikes fear into the hearts of all serious players of that sport (
ratelena [41]

Answer:E. There are two data points which are far removed from the remaining data points. These two data points have large x-values and small y-values. Their presence might have an undue influence on a line fit to the data.

Step-by-step explanation:

7 0
3 years ago
2. Mr. Spongebob told me that the measure of the angle below is 145 degrees. Is his answer correct? If not, explain your reasoni
Sedaia [141]

Answer:

no

Step-by-step explanation:

the arrow is between 140 and 130 so it will be 135. If it was between 140 and 150 then it could be 145 degrees.

5 0
3 years ago
Which algebraic expression represents “the difference of fifty-four and seven times a number”? 54 minus 7 n StartFraction 54 Ove
VMariaS [17]

Answer: 54-7n

Step-by-step explanation:

When we talk about mathematical language, the <u>difference </u>between two numbers, quantities or terms is the <u>substraction operation.</u>

For example, the <u>difference</u> between a and b is:

a-b

On the other hand, if we read a numer c <u>times</u> a number n, this means both numbers are multiplied.

For example:

c <u>times</u> n is:

(c)(n)

So, according to the explained above, “the difference of fifty-four and seven times a number n” is:

54-7n

8 0
3 years ago
Read 2 more answers
4. Using the geometric sum formulas, evaluate each of the following sums and express your answer in Cartesian form.
nikitadnepr [17]

Answer:

\sum_{n=0}^9cos(\frac{\pi n}{2})=1

\sum_{k=0}^{N-1}e^{\frac{i2\pi kk}{2}}=0

\sum_{n=0}^\infty (\frac{1}{2})^n cos(\frac{\pi n}{2})=\frac{1}{2}

Step-by-step explanation:

\sum_{n=0}^9cos(\frac{\pi n}{2})=\frac{1}{2}(\sum_{n=0}^9 (e^{\frac{i\pi n}{2}}+ e^{\frac{i\pi n}{2}}))

=\frac{1}{2}(\frac{1-e^{\frac{10i\pi}{2}}}{1-e^{\frac{i\pi}{2}}}+\frac{1-e^{-\frac{10i\pi}{2}}}{1-e^{-\frac{i\pi}{2}}})

=\frac{1}{2}(\frac{1+1}{1-i}+\frac{1+1}{1+i})=1

2nd

\sum_{k=0}^{N-1}e^{\frac{i2\pi kk}{2}}=\frac{1-e^{\frac{i2\pi N}{N}}}{1-e^{\frac{i2\pi}{N}}}

=\frac{1-1}{1-e^{\frac{i2\pi}{N}}}=0

3th

\sum_{n=0}^\infty (\frac{1}{2})^n cos(\frac{\pi n}{2})==\frac{1}{2}(\sum_{n=0}^\infty ((\frac{e^{\frac{i\pi n}{2}}}{2})^n+ (\frac{e^{-\frac{i\pi n}{2}}}{2})^n))

=\frac{1}{2}(\frac{1-0}{1-i}+\frac{1-0}{1+i})=\frac{1}{2}

What we use?

We use that

e^{i\pi n}=cos(\pi n)+i sin(\pi n)

and

\sum_{n=0}^k r^k=\frac{1-r^{k+1}}{1-r}

6 0
3 years ago
Choose the equation below that represents the line passing through the point (−3, −1) with a slope of 4. (1 point)
tangare [24]
It would be the first one
6 0
3 years ago
Read 2 more answers
Other questions:
  • The Chesapeake Bay tides vary between 4 feet and 6 feet. The tide is at its lowest point when time (t) is 0 and completes a full
    14·1 answer
  • What is the value of x?<br><br> Enter your answer in the box.<br><br><br> __cm
    15·1 answer
  • Analyze the following graph and determine the slope of the line in the graph.
    13·2 answers
  • If m BAC = 90°, and m DAC = 689,<br> then m BAD = [ ? ]°
    11·1 answer
  • Please help :(( Simplify.
    12·1 answer
  • Please help me get this easy maths question I’m mentally unwell
    14·1 answer
  • On a coordinate plane, 2 dashed straight lines are shown. The first line has a positive slope and goes through (negative 1, 0) a
    13·2 answers
  • Answer ASAP pls pls answer
    5·2 answers
  • Show your work to get full credit. Solve the following problem with any method you want.
    14·2 answers
  • Please hurry and explain it to me. Make it easy to understand!
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!