Charles paid $398.57 for a new computer. He knew that the total included about 28$ in tax. What is the approximate percentage of the total that was tax?

Answers

Answer 1

Answer:

7 percent.

Step-by-step explanation:

Hope this helps!


Related Questions

What’s the slope?? Please help!

Answers

Answer:

I believe the slope of the line is 5

Step-by-step explanation:

5 + 5 = 10

10 + 5 + 15

15 + 5 = 20

Hope this helps :)

(change in y divided by change in x)

Pls help me out I’m very confused

Answers

Answer:

7

Step-by-step explanation:

C= 2 pi r

14 pi= 2 pi r

7=r

Joy baked 2 pizzas and cut each pizza into 8 slices. Joy and her brother ate all but 4 slices of the pizza. Which equation can be used to find s, the number of slices joy and her brother ate?

2 x s = 8 x 4

2 x 8 + 4 = s

s = (2 + 8) - 4

8 x 2 = s + 4

Answers

Answer: 8 x 2 = s + 4

what is the fornula for find arithemetic ewuation​

Answers

Answer:

a_{n} = a_{1} + (n-1)d

a_n = the nᵗʰ term in the sequence

a_1 = the first term in the sequence

d = the common difference between terms

The general term of an arithmetic sequence can be written in terms of its first term a1, common difference d, and index n as follows: an=a1+(n−1)d. ... The nth partial sum of an arithmetic sequence can be calculated using the first and last terms as follows: Sn=n(a1+an)2.

A triangle has an area that is 125 m2. The measure of the base is 20 m so, h = ? m.

Answers

Answer:

12.5

Step-by-step explanation:

12.5 multiplied by 20 is 250 which you divide by 2 to get the area. it plugs in to the triangle area formula which is 1/2 base times height.

Answer:

Hello! answer: h = 12.5

Step-by-step explanation:

H = 12.5 because 12.5 x 20 = 250 then we divide by 2 and get our area 125. so h = 12.5

Which situation CANNOT be represented by this equation? −13+15=9

Answers

Answer:

If you can please edit the question and give us the situation choices, we can help. (Answering this to hold my spot so some scammer doesn't answer). You can also comment them.

“Gas Additive A”

Additive: “A”

Values below Q1:
“-15, -4, -2”

Q1: “1”

Median: “3”

Q3: “4”

Values above Q3:
“5, 7, 8”

A consumer advocate conducted a test of a popular gasoline additive that was claimed to increase gasoline mileage in cars. For
a sample of 15 cars they used the additive and determined how many more miles the car could drive when the additive was added to the gas tank.

For example, a positive 10 would mean that the car drove 10 more miles with the additive whereas a-3 would mean that the car drove 3 fewer miles with the additive.

The table shows a few data values (of how many more miles a car could drive with the additve) along with some summary statistics.

Are there any striking deviations?

A.) -15

B.) -2

C.) 7

D.) 8

Answers

Answer:

A

Step-by-step explanation:

100 POINTS AND BRAINLIEST. PLEASE HELP!!!!!! Ava’s watering can holds 2 liters of water. She uses 200 milliliters to water each of her plants. How many plants can she water if she fills the watering can two times?

Answers

Answer:

She can water 20 plants

Step-by-step explanation:

She has a total of 2 liters in each can, and if she uses 2 full cans, she has a total of 4 liters. 4 liters=4000 milliliters.

To find the amount of plants she can water, we need to divide the amount of water she has by how much it takes to water each plant. So,

[tex]\frac{4000}{200}[/tex]

[tex]=\frac{20}{1}[/tex]

[tex]=20[/tex]

So, she can water 20 plants with two full water cans.

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Answer:

20 plants

Step-by-step explanation:

SEE THE IMAGE FOR SOLUTION

HOPE IT HELPS

HAVE A GREAT DAY

Select the correct answer. Every dimension of a triangular pyramid is multiplied by 10 to produce a new figure that is geometrically similar. What effect does this have on the surface area of the pyramid? A. The surface area of the pyramid is multiplied by 10. B. The surface area of the pyramid is multiplied by 50. C. The surface area of the pyramid is multiplied by 100. D. The surface area of the pyramid is multiplied by 1,000. E. The effect on the surface area cannot be determined.

Answers

Answer:

C. The surface area of the pyramid is multiplied by 100

Step-by-step explanation:

The area is the function of the two dimensions.

If each dimension has changed by 10 times, the the area will change by:

10*10 = 100 times

Correct choice is C

Recall the relationship Between side and area

a/b=a²/b²

So

If it's multiplied by 10

The area increases by

10²100times

HELP WILL MARK BRAINLIEST IF GOTTEN RIGHT

Answers

Answer:

B

Step-by-step explanation:

trust meh

NEED HELP WITH MATH

Answers

9514 1404 393

Answer:

  A.  g(x) = √(x -5), x ≥ 5

Step-by-step explanation:

You can use the definition of an inverse function to solve for g(x).

  x = f(g(x))

  x = (g(x))^2 +5

  x -5 = (g(x))^2 . . . . . subtract 5

  √(x -5) = g(x) . . . . . take the square root

The radical contents cannot be negative, so this is only defined for x-5 ≥ 0, or x ≥ 5.

  g(x) = √(x -5),  x ≥ 5

The amount that households pay service providers for access to the Internet varies quite a bit, but the mean monthly fee is $50 and the standard deviation is $20. The distribution is not Normal: many house- holds pay a low rate as part of a bundle with phone or television service, but some pay much more for Inter- net only or for faster connections.
A sample survey asks an SRS of 50 households with Internet access how much they pay. Let x be the mean amount paid.
(a) Explain why you can't determine the probability that the amount a randomly selected household pays for access to the Internet exceeds $55.
(b) What are the mean and standard deviation of the sampling distribution of ?
(c) What is the shape of the sampling distribution of x? Justify your answer.
(d) Find the probability that the average fee paid by the sample of households exceeds $55. television service, but some pay much more for Inter- net only or for faster connections.

Answers

Answer:

(a) See Explanation

(b) [tex]\bar x =50[/tex] and [tex]\sigma_x = 0.8944[/tex]

(c) The shape is normal

(d) [tex]P(\bar x > 55) = 0[/tex]

Step-by-step explanation:

Given

[tex]\mu = \$50[/tex] -- mean

[tex]\sigma = \$20[/tex] --- standard deviation

[tex]n=500[/tex] --- sample size

Solving (a): The reason we can't determine the probability that an amount to access internet by a household will exceed $55.

The question says that a lot of households pay low rates, but the percentage of the households in this category is not given. This means that it is impossible to determine the shape of the distribution.

Hence, the probability cannot be calculated.

Solving (b): Sample mean and Sample standard deviation

The sample mean estimates the population mean

So:

[tex]\bar x =\mu[/tex]

[tex]\bar x =50[/tex]

The sample standard deviation is calculated as thus:

[tex]\sigma_x = \frac{\sigma}{\sqrt n}[/tex]

[tex]\sigma_x = \frac{20}{\sqrt{500}}[/tex]

[tex]\sigma_x = \frac{20}{22.36}[/tex]

[tex]\sigma_x = 0.8944[/tex]

Solving (c): The shape of the distribution.

We have:

[tex]n = 500[/tex] --- The sample size

According to Central limit theorem, When the sample size is greater than 30, then the shape of the distribution is normal.

Hence, the shape is normal

Solving (d): [tex]P(\bar x \ge 55)[/tex]

Calculate the test statistic (t)

[tex]t = \frac{\bar x - \mu}{\sigma}[/tex]

[tex]t = \frac{55 - 50}{0.8945}[/tex]

[tex]t = \frac{5}{0.8945}[/tex]

[tex]t = 5.590[/tex]

So:

[tex]P(\bar x > 55) = P(t > 5.590)[/tex]

Referencing the z table, we have:

[tex]P(t > 5.590) = 0[/tex]

Hence:

[tex]P(\bar x > 55) = 0[/tex]

Please help ill give extra points

Answers

Answer:

Dixie hill...Option B...

Brian has 2 fish ponds in his backyard connected by a waterfall The top pond
holds 24 gallons of water. The bottom pond holds 158 gallons of water. How many total
gallons do the 2 fish ponds hold?

Answers

Answer:

182 gallons of water

Solve 3x^2 if x is 10



By the way, the x is a variable

Answers

300 is your answer.......

what would be the area of the triangle if the base of the triangle is 6 pi long height is three units long

Answers

Answer: Area = 56.52 units

Step-by-step explanation:

Pi = 3.14

Area of triangle formula is base x height divided by 2.

6 (3.14) = 18.84

18.84 x 3 = 56.52 units

The wholesales price of a basket ball was $10.00. The store marked it up an additional 120%. What was the sale price?

Answers

Answer:

22 dollars

Step-by-step explanation:

it starts at 100 percent so if it is marked up a additional 120 percent then it is 220 percent.

22/10*10=22

Luke was asked to compute the length of AB. What is Luke's error?

Answers

Answer:

uh......

Step-by-step explanation:

Answer:

Luke used the formula for arc length for central angles or arc measures in degrees, but the diagram gives the central angle in radians.

Step-by-step explanation:

took the thing

A grocery store recently sold 10 cartons of yogurt, of which 5 were raspberry. What is the experimental probability that the next carton of yogurt sold will be raspberry? ​

Answers

Answer:

Step-by-step explanation:

10/16

Which of the following describes the polynomial function?

Answers

Answer:

I think it is option C.

if i am right plz give me brainliest!

For a test in a math class, 60 students arrive and take out their supplies. Of those students, 22 bring pens, and 48 bring pencils. Only one student arrives without a pen or pencil.
How many students brought both a pen and a pencil?

Answers

Answer:

11 students brought both a pen and a pencil

Step-by-step explanation:

59 students brought a pen or pencil or both

48 + 22 = 70

70-59 = 11

11 students brought both a pen and a pencil

A 16 1/2 km stretch of road needs repairs. Workers can repair 2 1/4 km of road per week. How many weeks will it take to repair this stretch of road?

Answers

Answer:

7 1/3 weeks

Step-by-step explanation:

Divide 16 1/2 km by (2 1/4 km/wk).  We get:

   16.5 km

--------------------- = 7 1/3 weeks

  2.25 km/wk

a bag contains red counters and blue counters only. number of red counters : number of blue counters = 3:4

Answers

Answer:

3/4

Step-by-step explanation:

The land area of Charlotte, NC is approximately 3 x 102 square miles. There are 6.4 x 102 square acres in a square mile. How many
square acres are in the city of Charlotte?
A 1.92 x 105 square acres
B. 2.13 X 104 square acres
C 4.7 x 105 square acres
D 9.4 x 104 square acres

Answers

Answer:

2.13 X 104 square acres

Step-by-step explanation:

Divide 6.4 acres by 3 miles = factor of 2.13

Therefore the answer must be 2.13 X 104 square acres

Can someone answer number 24 step by step?

Answers

Answer:

=1

Step-by-step explanation:

log3(x+2)-log3(x)=1

Subtraction sign means you can divide the values inside the parintheses

log3(x+2/x)=1

split up the fraction into x/x and 2/x; x/x = 1

log3(1+(2/x))=1

Change of base - three to the first power = value in parintheses

3to1st=1+(2/x)

subtract 1 from both sides

2=2/x

divide both sides by 2

x=1

;)

Find the length of a picture frame whose width is 3 inches and whose proportions
are the same as a 9-inch wide by 12-inch long picture frame.
o 6 inches
O 36 inches
o 4 inches
o 21 inches

Answers

the length of the frame is 21 inches.

Cheryl’s fish tank is 2 yards long by 24 inches wide by 3 feet high. What is the volume of Cheryl’s tank in cubic inches?

Answers

Answer:62

Step-by-step explanation:

am i correct if not pelase hep

Answers

Answer:

Step-by-step explanation:

12 feet

What mistake did Fumio make? He did not distribute the 2 to both components of vector u. He added vectors v and w before distributing the –3 to their components. He subtracted vector w from vector v. He did not use the associative property correctly when rearranging the signs.

Answers

Answer: A

Step-by-step explanation:

Answer:

Option A; He did not distribute the 2 to both components of vector u.

Step-by-step explanation:

edge 2022 :-)

A coin is flipped 20 times. It lands on heads 11 times and tails 9 times. What is the theoretical probability that you will flip heads? Please show your work.

Answers

Answer:

11/20

Step-by-step explanation:

probability-- number of favourable outcome/ number of total outcome

probability--11/20

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13. Cul es el vrtice de la parbola y=2x^2-16x+2?A) (4.-30)B) (4,0)C) (-4,38)D) (-4,-30)E) (5,2) What is the perimeter, in units, of ABC A B C with A(1,6) A B(7,6), and C(3,3) 1.9h + 42.9 > 65.7solve for h DONT SEND LINKS Find the value of y given the value of x: Y=7x, x=-5 y= -5x +10y= -2x-2solve by substituions I mt.Kaboob were to erupt again what changes might you expect to see in the walking bean population 2. Les filles parlent au nouvel tudiant.Rcrivez les phrases suivantes avec un pronom complment indirect. Jeanne wants to start collecting coins and orders a coin collection starter kit. The kit comes with three coins chosen at random, each in a small envelope. Each coin is either a nickel, a dime, or a quarter. Use conditional probability to solve the following:What is the probability that all three coins are quarters if the first two envelopes Jeanne opens each contain a quarter?What is the probability that all three coins are different if the first envelope Jeanne opens contains a dime?A)1/3;2/9B)1/5;5/6C)3/10;6/10D)1/2;3/6 If anyone could help me with this, that would be nice!In English, write one paragraph answering these questions about French bread.(QUESTIONS THAT SHOULD BE IN THE PARAGRAPH)What different types of bread are there? During what meals is it usually eaten? Why is bread such a common food in France or the francophone country you chose? Why is it so important to the French culture? (thank you!!) Why do you believe the European Union requires its members to have democratic governments that respect human rights. Use the recursive formula to answer the question.a1=20an=an15What is the 4th term in the sequence? What was a result of the changing economy of the North during the mid-1800s? Explain the causes of the seasons show all steps solving this 2x^2=13x+7 Factorise fully:8p2 12pc(2) giving brainless please hlep Which graphic design tool should you use to achieve the effect in the image shown here?A. MoveB. color and painting toolsC. LayersD. MarqueeE. Crop Which type of energy resource uses heat from underground to createelectricity?A. Solar energyB. BiomassC. Geothermal energyD. Nuclear energy Solve.(4 x 104)(2 x 103) Translate the following sentences into French.24. I have nothing to declare.25. My brother is shorter than my sister.(Please dont use the translator)