Use elimination using multiplication to solve 2x-y=-1
3x-2y=1

The girls' reluctance to sell the chocolate bars at $2.50 per bar may not be purely altruistic but instead driven by their understanding of market demand and the potential impact of pricing on sales volume.

The girls' perception that the selling price of $2.50 per chocolate bar is too high may not necessarily indicate altruism but rather a response to market demand. When faced with a downward sloping demand curve, higher prices can lead to lower sales volume.

The girls' concern may be rooted in their understanding that a higher price could potentially deter potential buyers from purchasing the chocolate bars, resulting in lower overall sales and potentially lower earnings for themselves.

By considering the demand curve, the girls are likely taking into account the price elasticity of demand. Elastic demand implies that a change in price will have a relatively larger impact on the quantity demanded. If the girls perceive the demand for chocolate bars to be elastic, they might believe that a lower price would attract more customers and lead to increased sales volume.

Their concerns could also be motivated by their desire to achieve a balance between maximizing their sales and ensuring a reasonable profit margin. They might be aware that setting the price too high could lead to reduced demand and lower overall revenue, thereby limiting their earnings.

Learn more about volume here:

https://brainly.com/question/28058531

#SPJ11

Answer:

im gonna assume you mean y=2x-6, if so the answer is -2 (multiply 2*2 then subtract 6)

if you really did mean y=2-6, then you would just subtract 6 from 2 and your answer would be -4

Answer:

15

Step-by-step explanation:

Multiply 5 by 3, 15

d=5

d3= 5(3)

5(3)=15

Answer:

I think of (C.85) can't be constructed

Step-by-step explanation:

hope this helps you :)

Answer:

C) 85

Step-by-step explanation:

Hope this helps

The blue graph has been shifted to the right by 3 units

Answer:

that is funny. That is where my dad was born and now he has horrible breathing issues

Step-by-step explanation:

Answer:

, Im in Arizona. Also what's this question about, that you disagree or agree?

The scale factor of the image is 1/4 or 0.25.

What is scale factor?

The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller).

To solve this question, use the coordinates of WX and W'X' as points of reference.

From the diagram, it can be obtained that -

W(-8,8) and X(8,0)

W'(-2,2) and X'(2,0)

First, calculate distance for WX -

Distance formula is -

d = √(x2-x1)^2+(y2-y1)^2

Distance for WX -

d1 = √(8+8)^2+(0-8)^2

d1 = √(16)^2+(-8)^2

d1 = √256+64

d1 = √320

d1 = 17.88

Distance for W'X' -

d2 = √(2+2)^2+(0-2)^2

d2 = √(4)^2+(-2)^2

d2 = √16+4

d2 = √20

The scale factor is then calculated using -

Scale = W'X'/WX

Scale = d2/d1

Substitute values of d1 and d2 -

Scale =√20/√320

Scale = √(20/320)

Scale = √1/16

Scale = 1/4

Therefore, the scale value is 0.25.

To learn more about scale factor from the given link

https://brainly.com/question/25722260

#SPJ1

The after-tax interest rate that David is paying on his mortgage is effectively reduced due to the tax deduction. Based on his 20% tax bracket, the actual after-tax interest rate will be lower than the nominal interest rate.

To calculate the after-tax interest rate, we need to consider the tax deduction that David can claim on his mortgage interest payments. The nominal interest rate on the mortgage is not directly affected by taxes. However, the tax deduction reduces the amount of taxable income, resulting in a lower tax liability.

In this case, David is in the 20% tax bracket. This means that for every dollar he deducts from his taxable income, he saves 20 cents in taxes. By deducting the mortgage interest payments from his taxable income, David effectively reduces the amount of income that is subject to taxation.

The after-tax interest rate can be calculated by multiplying the nominal interest rate by one minus the tax rate. In this scenario, if we assume the nominal interest rate is fixed at 5%, the after-tax interest rate would be 5% * (1 - 0.20) = 4%. This means that David is effectively paying an after-tax interest rate of 4% on his mortgage, considering the tax deduction benefit.

By taking advantage of the tax deduction, David can lower his overall mortgage cost, making homeownership more affordable in the long run.

Learn more about interest rate here:

https://brainly.com/question/2793278

#SPJ11

the factors of 28 are : 1, 2, 4, 7, 14, and 28.

the prime factors of 28 are : 2, 2, and 7.

s ≤ $20,000 represents the yearly earnings (in dollars) of a student eligible for financial aid

An inequality is a relationship that makes a non-equal comparison between two numbers or other mathematical expressions e.g 2x > 4

To represent the yearly earnings (in dollars) of a student eligible for financial aid using the variable s, you can write the following inequality:

s ≤ $20,000

This inequality states that the variable s, which represents the yearly earnings of a student, must be less than or equal to $20,000 in order for the student to be eligible for financial aid.

Learn more about inequality on:

brainly.com/question/25275758

#SPJ1

Answer:

Step-by-step explanation:

Help?

Answer:

Length: 200

Width: 5

Step-by-step explanation:

The perimeter of 120 and 85 is 410

The perimeter of 200 and 5 is 410

The area of 200 and 5 is 200 times 5 which is 1000

The area of 120 and 85 is 120 times 85 is 10200

Answer:

A. 1206 cm³

Step-by-step explanation:

We have a cone and are asked to find the approximate volume of it.

Keep in mind we are using π for 3.14

The forumla of a cone is V = πr²\(\frac{h}{3}\)

We know the radius = 12

and the height = 8

Substitute :

V = π12²\(\frac{8}{3}\)

Since these are multiplied with each other, we can first start off with multiplying the fraction, including with factoring 12²:

V = \(\frac{2^4*3^2*8\pi }{3}\)

Cancel the common factor - 3 :

V = \(2^4 * 8 * 3\pi\)

Multiply 8 and 3π :

V = \(2^4 * 24\pi\)

Solve the exponent :

V = \(16 * 24\pi\)

Multiply :

V = \(384\pi\)

Multiply for the final answer :

1205.76 cm³

which can be rounded up to

A. 1206 cm³

Answer:

7 mi.

Step-by-step explanation:

It took 19 minutes for each to read 115 pages.

What is Algebraic expression ?

Algebraic expression can be defined as the combination of variables , constants and exponents.

Let x be the number of minutes

And y be the number of pages.

y = 96 + x  --equation1 (for danielle )

y=39+4x --equation2 (for lorenzo)

By substituting equation 1 in equation 2.

we get,

96+x = 39 + 4x

96-39+x = 39-39+4x

57+x = 4x

4x-x = 57

3x = 57

x = 57/3

x = 19 .

Substitute x = 19 in equation 1 we get y = 96 + 19 and y=115

in equation 2 we get , y = 39 + 4*19

y = 39+76

y = 115

Hence , it took 19 minutes for each to read 115 pages.

To learn more about Algebraic expression from the given link.

https://brainly.com/question/953809

#SPJ1

The chi-square test is appropriate to analyze the primary efficacy endpoint in this study

The chi-square test is a valid statistical hypothesis test when the test statistic is chi-square distributed under the null hypothesis. Specifically, Pearson's chi-square test and its variants. Used to compare observed and expected results. The purpose of this test is to determine whether differences between observed and expected data are due to chance or to relationships between the variables being examined.

A chi-square formula is a statistical formula for comparing two or more sets of statistical data. It is used for data consisting of variables that span different categories and is denoted by χ2. The chi-square formula is χ2 = ∑(Oi – Ei)2/Ei, where Oi = observed (actual) and Ei = expected.

Learn more about the chi-square test here: https://brainly.com/question/4543358

#SPJ4

Answer:

9

Step-by-step explanation:

Think about u coming 3 + 3 then subtract it to 10 then u will get 1 more then yea u get 9

Answer:

It is A

Step-by-step explanation:

Because the arrow is pointing behind 4.4

Hope this helps:)

The side lengths of the triangle are 17, 144, 145.

Having three sides, three angles, and three vertices, a triangle is a closed, two-dimensional object. A polygon includes a triangle.

Triangle's characteristics:

Let x be length of smaller side of triangle

25 + 7x = longer length

26 + 7x = hypotenuse

(26 + 7x)² = (25 + 7x)² + x²

676 + 364x + 49x² = 625 + 350x + 49x² + x²

x² -14x - 51 = 0

(x - 17)(x + 3) = 0

x = {-3, 17}

But length cannot be negative.

∴The sides are 17, 144, 145.

To know more about triangle please visit:

https://brainly.com/question/2773823

#SPJ4

Answer:

cosR = \(\frac{5}{13}\)

Step-by-step explanation:

assuming the right triangle has ∠ Q = 90° with legs 5 and 12

then this is a 5- 12- 13 right triangle with hypotenuse PR = 13 cm

then

cosR = \(\frac{adjacent}{hypotenuse}\) = \(\frac{QR}{PR}\) = \(\frac{5}{13}\)

Answer:

5.385 = 5.4

Step-by-step explanation:

Answer:

5.4

Step-by-step explanation:

x^2+y^2=c^2

4+25=c^2

c^2=104

c=5.4

The approximate area of the northern hemisphere is 80,976,168 square kilometers.

The formula for the surface area of a sphere is given by:

\(A = 4\pi r^2\)

where A is the surface area and r is the radius of the sphere.

Given that the diameter of the Earth is 12,756 km, we can find the radius by dividing the diameter by 2:

r = 12,756 km / 2 = 6,378 km

Now we can substitute the radius into the formula:

A = 4π(6,378 km)²

Calculating the area:

A = 4π(40,548,084 km²)

Simplifying further:

A ≈ 161,952,336 km²

However, we need to find the area of the northern hemisphere, which is only half of the full hemisphere. Therefore, we divide the total surface area by 2:

Area of the northern hemisphere = (161,952,336 km²) / 2

Area of the northern hemisphere ≈ 80,976,168 km²

So, the approximate area of the northern hemisphere is 80,976,168 square kilometers.

For more such questions on area

https://brainly.com/question/25292087

#SPJ8

According to the parallelogram, the slope of the segment QR is 3/2

In math the term called parallelogram is a closed quadrilateral with parallel and congruent opposite sides is referred to as a parallelogram and the opposite pairs of sides have the same slope and the sum of two adjacent angles is 180 degrees.

Here we have know that values of P is located at (-1, 6) and S is located at (-7,-3). Then the slope of QR is calculated by using the the slope formula for a line segment passing through two points,

It can be calculated as,

=> m = (-3 - 6) / (-7 - (-1)

When we simplify this one then we get,

=> m = -9/-6

=>  m = 3/2

To know more about Parallelogram here

https://brainly.com/question/29147156

#SPJ4

Sally's estimated maximum heart rate (MHR) is 199 beats per minute.

To estimate Sally's maximum heart rate (MHR), we will use the following formula:

MHR = 220 - age

1. First, note Sally's age, which is 21 years old.
2. Then, apply the formula: MHR = 220 - 21.
3. Calculate the result: MHR = 199 beats per minute.

Sally's estimated maximum heart rate (MHR) is 199 beats per minute.

Learn more about maximum heart rate (MHR),

https://brainly.com/question/14648893

#SPJ11

Answer: $5,400

Step-by-step explanation: 10 percent of 6000 is 600 so you do 6000-600 to get 5400

Answer:

1, 2 and 3  (I, II and III)

Step-by-step explanation:

Since the slope is positive (3) in the equation y = 3x + 1, it means that the graph has a positive slope, meaning the line slopes up from left to right.

The y intercept is 1

the x intercept is:  

0 = 3x + 1

x = 1/3

Therefore, the graph of y = 3x + 1 lies in quadrants I, II and III.  Graph the equation to prove this.  

The required speed in km/hr are 108km/hr and 25.704km/hr

Given the following conversion rate

Given that the speed of cheetah is 30meters per second. Converting to m/s will give:

30m/s = \(\frac{30m}{1s} \times \frac{1km}{1000m} \times \frac{3600s}{1hr} \\\)

30m/s = 30 * 3.6

30m/s = 108km/hr

For the person with speed of 7.14m/s, the value in km/hr is expresssed as:

7.14m/s = 7.14 * 3.6

7.14m/s = 25.704km/hr

Hence the required speed in km/hr are 108km/hr and 25.704km/hr

Learn more on speed conversion here: https://brainly.com/question/2681210

Answer:

x=1, y=4;

x=2, y=13

Step-by-step explanation:

1. The first statement is a universally quantified predicate that states for all x, either Px or Dx is true.

2. The second statement is the negation of Da, which means Da is false. From this, we can infer that Pa is true.

1. The first statement, (∀x)(Px v Dx), expresses that for all x, either Px or Dx is true. This means that every element x satisfies the condition of being either Px or Dx. It does not specify which elements satisfy Px or Dx, but it applies to all x universally.

2. The second statement, ~Da, indicates that Da is false. From the negation of Da, we can infer the truth of its negation, which is Pa. Therefore, we can conclude that Pa is true based on the given information.

By combining the conclusions from the two statements, we can deduce the following:

- (∀x)(Px v Dx) is true for all x.

- ~Da is true, which implies Pa is true.

However, there is no direct relation or implication between Pa and the statement GC / Hc. Without further information or logical connections, we cannot derive the conclusion Hc based solely on the given premises.

Learn more about negation here:

https://brainly.com/question/30426958

#SPJ11