margarite owns a boutique. she sells her jewelry at a 30% markup. if she buys a bracelet for $22, what would she sell it for after the markup?​

The line \(12x + 6y = 432\) is represented by the red line, and the line equation \(9x + 3y = 270\)is represented by the blue line. The point where these two lines intersect is (36,0).

In mathematics, an equation is an assertion that affirms the equivalence of two factors. An algebraic equation (=) separates two sides of an equation. For instance, the assertion \("2x + 3 = 9"\)states that the word "2x + 3" corresponds to the number "9". The goal of solution solving is to figure out which variable(s) must still be adjusted for the equations to be true. It is possible to have simple or intricate equations, recurring or complex equations, and equations with one or more components. For example, in the equations" \(x^2 + 2x - 3 = 0\)," the variable x is lifted to the powercell. Lines are utilised in many areas of mathematics, include algebra, arithmetic, and geometry.

To plot these lines on a graph, we first need to solve for y in terms of x for each equation.

can plot these lines

\(12x+6y 4326y=-12x+432y = -2x+729x+3y=2703y=9x+270y=-3x+90\)

\(|100|_ | . | . 90|_ . | . | .80|_ . | . | .70|_ . | . | .60 |___________________________________________ 0 30 60 90 120 150 180 210 240 270 300\)

The line\(12x + 6y = 432\)is represented by the red line, and the line 9x + 3y = 270 is represented by the blue line. The point where these two lines intersect is (36,0).

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Given:

Point C divides AB such that AC:BC=2:3.

To find:

The x-value for point C.

Solution:

Section formula: If a point divide a line segment in m:n, then

\(Point=\left(\dfrac{mx_2+nx_1}{m+n},\dfrac{my_2+ny_1}{m+n}\right)\)

Form the given graph it is clear that the endpoints of the line segment AB are A(-3,5) and B(3,0).

Point C divides AB such that AC:BC=2:3. Using section formula, the coordinates of point C are

\(C=\left(\dfrac{2(3)+3(-3)}{2+3},\dfrac{2(0)+3(5)}{2+3}\right)\)

\(C=\left(\dfrac{6-9}{5},\dfrac{0+15}{5}\right)\)

\(C=\left(\dfrac{-3}{5},\dfrac{15}{5}\right)\)

\(C=\left(-0.6,3\right)\)

The x-value of C is -0.6.

Therefore, the correct option is B.

Answer:

9

Step-by-step explanation:

3-(-6)=9

Hi there! :)

Answer:

\(\huge\boxed{q -r = 9}\)

q = 3

r = -6

q - r = 3 - (-6) = 9

Since none of the 13 classmates had been given math homework between the original survey and Kelly's second survey, the sum of the values in the second data set is the same as the sum of the values in the original data set. Therefore, the change in the means can be determined without calculating the mean of either data set by considering the number of data points in each set.

Since both data sets have the same number of data points, the change in the means will be zero. This is because the mean is calculated by dividing the sum of the values by the number of data points, and since the sum of the values is the same in both data sets, the means will also be the same.

In other words, the change in the mean is calculated as follows:

Change in mean = Mean of second data set - Mean of first data set

Since none of the values in the second data set have changed, the mean of the second data set is the same as the mean of the first data set. Therefore, the change in the mean is:

Change in mean = Mean of second data set - Mean of first data set

= Mean of first data set - Mean of first data set

= 0

Thus, the change in the means between Kelly's original survey and her second survey is zero.

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The approximate probability of getting a z-score between +1 standard deviation and +2.5 standard deviations in a standard normal distribution is 0.1525.

To find the area under the standard normal curve between +1 standard deviation and +2.5 standard deviations, we can use a standard normal distribution table or calculator. Here are the steps:

Therefore, the area under the standard normal curve between +1 standard deviation and +2.5 standard deviations is approximately 0.1525.

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Answer:

------------------------------

Factor the given expression, using the difference of squares identity:

Factoring in below steps:

If the building itself will be used as one of the sides of the enclosed area. The maximum area that can be enclosed by the fencing is: 31,250ft².

Let the area be x ft long

Let the width be (500 -x )/2

Hence,

x × (500 - x)/2 = -1/2x² + 250x

When,

x = 250

So,

Maximum area =-1/2 × 250² +250 ×250

Maximum area = -31,250ft + 62,500ft

Maximum area = 31,250ft²

Therefore 31,250ft² is the maximum area.

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Based on angle relationship, the measures for each angle are:

m∠1 = 103°; m∠4 = 103°; m∠7 = 103°; m∠5 = 77°; m∠6 = 77°; m∠3 = 77°; m∠2 = 77°.

The relationship between angles that are formed by two paralleled lines and a transversal can be used to determine the measures of each of the angles.

Using angles relationship, we have:

Angle 1 = 103° [corresponding angles are equal]

Angle 4 = 103° [alternate interior angles are equal]

Angle 7 = 103° [vertical angles are equal]

Angle 5 = 180 - 103 = 77° [supplementary angles]

Angle 6 = angle 5 = 77° [vertical angles are equal]

Angle 3 = angle 5 = 77° [alternate interior angles are equal]

Angle 2 = angle 5 = 77° [corresponding angles are equal]

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Answer:

56mph

Step-by-step explanation:

If d=rt,

then s=d/t,

so if d=67.2 and t=1.2,

then 67.2/1.2=56

The new coordinates of points M and O is determined as;

M = (0.5, - 1)

O = (2.5, -2).

The new coordinate of points M and O after applying the scale factor is calculated as follows;

The given scale factor = 1/2

The current coordinates of point M and O is;

M = (1, - 2)

O = (5, - 4)

A scale factor can be used to either enlarge a figure or decrease a figure.

When the scale factor is less than 1, it means the new figure will be smaller than the original figure.

However, if the scale factor is greater than 1, the new figure will be greater than the original figure.

The new coordinates of points M and O is determined as follows;

M = (1 x 1/2,  -2 x 1/2) = (0.5, - 1)

O = (5 x 1/2, -4 x 1/2) = (2.5, -2)

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16 cans for .85 cents is a better deal because it is less cents per can than there is in the other deal. May I please be the brainiest? I have never been that and I would love it

Answer: b+95+34=180, b+129=180, 51

Step-by-step explanation:

b+95+34=180 works because the angles add to form a straight angle.

From this, we can obtain b+129=180 by adding the two constants.

Subtracting 129 from both sides, we get b=51.

Answer:

0.06944444444 as a fraction equals 6944444444/100000000000

Answer:

Deon: 12 pages/day

Emily: 9 pages/day

Deon's read faster.

Step-by-step explanation:

Deon: 36 pages in 3 days

(36 pages)/(3 days) = 12 pages/day

Emily: 45 pages in 5 days

(45 pages)/(5 days) = 9 pages/day

Deon's read faster.

Answer:

Deon read _3 more __ pages per day than Emily.

Step-by-step explanation:

A study conducted in 2004 examined the usage of cable television and radio among 10 individuals to determine if there was a significant difference in the average hours spent on each medium. Using a significance level of 0.05, statistical analysis was performed to test for a disparity between the population mean usage of cable television and radio.

The researchers collected data on the number of hours per week spent watching cable television and listening to the radio from a sample of 10 individuals. The objective was to determine if there was a significant difference in the average usage between cable television and radio, considering the increasing competition among various entertainment options.

To test for a difference between the population mean usage for cable television and radio, a statistical hypothesis test was conducted. The significance level (α) of 0.05 was chosen, which means that the results would be considered statistically significant if the probability of obtaining such extreme results by chance alone was less than 5%.

The test compared the means of the two samples, namely the average hours spent watching cable television and listening to the radio. By analyzing the data using appropriate statistical techniques, such as a two-sample t-test, the researchers determined whether the observed difference in means was statistically significant or could be attributed to random variation.

After conducting the hypothesis test, if the p-value associated with the test statistic was less than 0.05, it would indicate that there was a significant difference between the population mean usage of cable television and radio. Conversely, if the p-value was greater than 0.05, there would be insufficient evidence to conclude a significant disparity.

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Answer:

\(m = \frac{ - 5 - 1}{2 - ( - 3)} = - \frac{6}{5} \)

Let's try some integer values of x to see what volumes we get

We do not get 15 as a result in that list above. So there are no integer solutions to x^3 = 15

In other words, the value \(\sqrt[3]{15}\) is not an integer.

Answer:

15/t

Step-by-step explanation:

15 chairs per table

(/) is used instead of the word 'per'

Answer:

x = -4 ± √2

Step-by-step explanation:

x^2+8x+16=2

(x + 4)^2 = 2

x + 4 = ±√2

x = -4 ± √2

The better buy is given by the following brand:

Brand A.

The better buy is obtained applying the proportions in the context of the problem.

A proportion is applied as the cost per ounce is given dividing the total cost by the number of ounces.

Then the better buy is given by the option with the lowest cost per ounce.

The cost per ounce for each brand is given as follows:

$8 per ounce is a lesser cost than $9.3 per ounce, hence the better buy is given by Brand A.

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The money in the account at the end of the 4 years is $1034

What is compound interest?

Compound interest, also known as interest on principal and interest, is the practice of adding interest to the principal amount of a loan or deposit.

Now we are given that the initial amount deposited in the account is $1000

This account is giving 0.85% And we have to figure out how much amount will be there

We use compound interest formula to find the amount

\(A= P(1+r/n)^{nt}\\\\A= 1000(1+0.0085)^{4}\\A = 1000(1.034)\\A= 1034\)

Hence the amount will be after 4 years is $1034.

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Option C : The slope is constant for all three pairs of points, we can conclude that the rate of change of the linear relationship is 3/2.

To find the rate of change of a linear relationship, you need to calculate the slope of the line that represents the relationship. The slope of a line can be calculated as the change in y divided by the change in x between any two points on the line.

The rate of change of a linear relationship is equal to its slope.

Using the points (1, 2) and (3, 5) to calculate the slope:

slope = (change in y) / (change in x) = (5 - 2) / (3 - 1) = 3/2

Using the points (3, 5) and (5, 8) to calculate the slope:

slope = (change in y) / (change in x) = (8 - 5) / (5 - 3) = 3/2

Using the points (5, 8) and (7, 11) to calculate the slope:

slope = (change in y) / (change in x) = (11 - 8) / (7 - 5) = 3/2

This means that for every increase of 1 in x, the y value increases by 3/2. So the rate of change of the linear relationship is 3/2 or "three over two". Therefore, the rate of change of the linear relationship is 3/2.

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What is the rate of change of the linear relationship modeled in the table?

x y

1 2

3 5

5 8

7 11

Group of answer choices

A. negative three over two

B. two over three

C. three over two

D. 1

81.469 correct to one Decimal place is 81.5

Answer:

Width=3

Step-by-step explanation:

Rectangle is width times height.

Therefore, height is perimeter divided by width.

120/40 = 3, so 3 is our width

The balance on his credit card will be the amount of $4076.56 one year from now.

Simple interest is defined as interest paid on the original principal and calculated with the following formula:

S.I. = P × R × T, where P = Principal, R = Rate of Interest in % per annum, and T = Time, usually calculated as the number of years. The rate of interest is in percentage r% and is to be written as r/100

First, we must compute James' monthly charges on his balance of 4289.

Principal = 4289

Rate = 5%

Time = 1 month = 1/12 year

Simple interest = 4289×5×1/12×100 = 17.87

The monthly charge is 17.87,

So the yearly charge would be: 12 × 17.87 = $214.44

His credit card balance one year from now = Principal - Interest

⇒ 4289 - 214.44

⇒ 4076.56

In one year, his credit card amount will be 4076.56.

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Answer:

Step-by-step explanation:

b is an inscribed angle. The rule for this is that the measure of an inscribed angle is half the measure of the arc it intercepts. The arc it intercepts is 56 degrees, so the measure of angle b is half of that at 28

Answer:

4 or 8

Step-by-step explanation:

Answer:

\(\tt{D. (x-2)² = 16 (y + 1)}\)

Step-by-step explanation:

In order to find the equation of a parabola given its vertex and focus, we can use the standard form equation for a parabola:

\(\boxed{\bold{\tt{(x - h)^2 = 4p(y - k)}}}\)

where (h, k) represents the vertex and p is the distance between the vertex and the focus.

In this case, the vertex is (2, -1) and the focus is (2, 3).

The x-coordinate of the vertex and focus are the same, which tells us that the parabola opens vertically. Therefore, the equation will have the form:

\(\tt{(x - 2)^2 = 4p(y - (-1))}\)

Simplifying further:

\(\tt{(x - 2)^2 = 4p(y + 1)}\)

Now we need to find the value of p, which is the distance between the vertex and the focus.

The distance formula between two points (x₁, y₁) and (x₂, y₂) is given by:

\(\boxed{\bold{\tt{Distance = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}}}}\)

Using this formula, we can calculate the distance between the vertex (2, -1) and the focus (2, 3):

\(\boxed{\bold{\tt{Distance = \sqrt{(2- 2)^2 + (3 -(+1))^2}}}}\)

\(\boxed{\bold{\tt{Distance = \sqrt{4^2}}}}\)

Distance 4

Therefore, p = 4. Substituting this value back into the equation, we get:

\(\tt{(x - 2)^2 = 4(4)(y + 1)}\)

\(\tt{(x - 2)^2 = 16(y + 1)}\)

So, the equation of the parabola is\(\tt{ (x - 2)^2 = 16(y + 1)}\)