What’s the answer plss

Model P televisions made up 12 of the 40 televisions when Quick Sell outlet sold a total of 40 television, each of which was either a model P television or a model Q television.

Price plus quantity equals revenue.

Let x be the quantity of sold TVs of model p.

40 - x units of the model q TV would have been sold.

Profits from model p TV sales are

px

Sales of the type q TV bring in money.

(40 - x)q

Total income equals px plus (40 - x)q

The average price calculation formula is written as

Total revenue / total number of TVs sold equals average price.

The 40 televisions sold for an average (arithmetic mean) price of $141. It follows that

141 = (px + (40 - x)q)/40

141 × 40 = px + (40 - x)q

5640 = px + (40 - x)q

p = q - 30

5640 = x(q - 30) + (40 - x) (40 - x)

q

30x + 40q - xq = 5640

5640 = - 30x + 40q

Since q = 120,

5640 = - 30x + 40 × 120

5640 = - 30x + 4800

5640 - 4800 = - 30x

840 = - 30x

x = 840/- 30 = - 28

Q cannot equal 120 since x cannot be negative.

Again,

5640 = px + (40 - x)q

If q = 30 + p, then

5640 = px + (40 - x)(30 + p)

5640 = px + 1200 + 40p - 30x - px

5640 = 1200 + 40p - 30x

Therefore,

If p = 120, then

5640 = 1200 + 40 × 120 - 30x

5640 = 6000 - 30x

30x = 6000 - 5640

30x = 360

x = 360/30

x = 12

Therefore, out of 40 televisions 12 tv are of model p

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The coordinates of the trapezoid  RSTU with vertices R(-13, 7), S(-1, 7), T(-1, -5), and U(-13,-9) after dilation with scale factor of k= 1/4 are

Data gotten from the question

Dilation refers to an increment or reduction in dimension and location of a preimage to get a new image

The coordinate of the image of dilation is gotten using the formula

x₂ = kx₁ - x₀(k - 1) for x coordinate

y₂ = ky₁ - y₀(k - 1) for y coordinate

definition of terms

terms with subscript 2 is corresponding to the image

terms with subscript 1 is corresponding to the preimage

terms with subscript 0 is corresponding to the center of dilation

\k = scale factor

R(-13, 7) ⇒ R'(-7, -2)

x₂ = 1/4 * -13 - -5(1/4 - 1) = -7

y₂ = 1/4 * 7 - -5(1/4 - 1) = -2

S(-1, 7)  ⇒ S' (-4, -2)

x₂ = 1/4 * -1 - -5(1/4 - 1) = -4

y₂ = 1/4 * 7 - -5(1/4 - 1) = -2

T(-1, -5) ⇒ T' (-4, -2.5)

x₂ = 1/4 * -1 - -5(1/4 - 1) = -4

y₂ = 1/4 * -5 - -5(1/4 - 1) = -2.5

U(-13,-9) ⇒ U' (-7, -6)

x₂ = 1/4 * -13 - -5(1/4 - 1) = -7

y₂ = 1/4 * -9 - -5(1/4 - 1) = -6

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The ratio 5:12 means that we have 5 orange marbles for 12 black marbles (5 to 12) and the orange marbles will be 30 if the container has 72 black marbles.

According to the question,

We have the following information:

A container full of marbles has a ratio of orange marbles to black marbles of 5:12.

It means that we have 5 orange marbles when the number of black marbles is 12.

Now, let's take the number of orange marbles to be 5x and the number of black marbles to be 12x.

Now, we have the number of black marbles as 72.

So ,we have:

12x = 72

x = 72/12

x = 6

Now, we will put the value of x in 5x to find the number of orange marbles:

5x

5*6

30

Hence, the number of orange marbles in the container when it has 72 black marbles is 30.

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The simplified expression of the perimeter of the triangle is 3.75x - 7.

A triangle is a a polygon with three sides. The sum of angles in a triangle is 180 degrees.

The perimeter of a triangle is the sum of the whole three sides.

Therefore, the simplified expression that represents the perimeter of the triangle is as follows:

Hence, the three sides of the triangle are as follows;

Hence,

perimeter of the triangle = 1.5x - 3 + 1.5x - 3 + 0.75x - 1

perimeter of the triangle = 1.5x + 1.5x + 0.75x - 3 - 3 - 1

perimeter of the triangle = 3.0x + 0.75x - 7

perimeter of the triangle = 3.75x - 7

Therefore, the simplified expression is 3.75x - 7

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The expression which can be rewritten using a common factor is [tex]\frac{xy}{14} (x^{2} +3y)[/tex].

According to the question,

We have the following information:

One fourteenth times x cubed times y plus three fourteenths times x times y squared.

(We know that 'times' has to be replaced with multiplication.)

Now, we will change this into mathematical expression:

[tex]\frac{x^{3} y}{14} +\frac{3xy^{2} }{14}[/tex]

Now, from these two terms, the common factor can be [tex]\frac{xy}{14}[/tex].

(Common factor means that the number and the variables taken as a common factor should be able to completely divide the terms given any expression.)

Now, taking it as a common factor, we have the following expression:

[tex]\frac{xy}{14} (x^{2} +3y)[/tex]

Hence, the required expression is [tex]\frac{xy}{14} (x^{2} +3y)[/tex].

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Perimeter = side 1 + side 2 ´+ side 3.

Triangle 1

Perimeter = 6 + 8 + 10

= 24

Triangle 2

Perimeter = 9 + 12 + 15

= 36

Ratio

24/36 = 2/3

The ratio of the perimeters is also 2/3

a. Using the equation of the relationship, the temperature outdoor would be 67.5 °F.

b. 140 chirps in a minute.

c. 60 chirps at that temperature is expected.

d. The graph for the relationship is given below.

e. 1/4 is the unit rate or slope = in 1/4°F per chirp.

f. 40 represents the starting or initial temperature.

The graph of a linear equation, y = mx + b, will have a slope value of m, and an initial value or y-intercept of b, which is the point on the y-axis that the line intercepts.

Given the equation, f = ¼c + 40, where:

f = temperature in degrees Fahrenheit

c = number of chirps

1/4 represents the temperature in °F per chirp

40 represents the initial temperature

a. Substitute c = 110 into the equation, f = ¼c + 40:

f = ¼(110) + 40

f = 67.5

The outdoor temperature is predicted to be 67.5 °F.

b. Substitute f = 75 into the equation, f = ¼c + 40:

75 = ¼c + 40

75 - 40 = ¼c

35 = 1/4c

4(35) = c

c = 140

140 chirps would be heard in a minute.

c. Substitute f = 55 into the equation, f = ¼c + 40:

55 = ¼c + 40

55 - 40 = ¼c

15 = c/4

4(15) = c

c = 60

Expect to hear 60 chirps at that temperature.

d. The graph for f = ¼c + 40 is in the attachment.

e. 1/4 is the unit rate or slope, which is the temperature in °F per chirp.

f. 40 tells us about the equation of the relationship that the initial temperature where we can start expecting the crickets to chirp starts from 40 °F.

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The value of x + y in the system of equations is  0.82125.

Given system of equations:-

8x + 9y = 4.92  ...(1)

9x + 14y = 6.93 ...(2)

We have to find the value of x + y in the system of equations.

Multiplying (1) by 9 and (2) by 8, we get,

72x + 81y = 44.28  ...(3)

72x + 112y = 55.44 ...(4)

(4) - (3), we get,

0x + 31y = 11.16

31y = 11.16

y = 11.16/31

y = 0.36

Putting the value of y in (1), we get

8x + 9*(0.36) = 6.93

8x + 3.24 = 6.93

8x = 6.93 - 3.24

8x = 3.69

x = 0.46125

Hence,

x + y = 0.46125 + 0.36 = 0.82125

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Answer:

a=1

Step-by-step explanation:

Using linear functions, it is found that:

a) The equation is: y = 2x + 3.

b) The equations are:

c) The systems are consistent independent.

d) The point of intersection is (1, 5).

A linear function is defined in slope-intercept formula by the rule presented as follows:

y = mx + b.

In which:

For Sidewalk 1, it is found that:

Then the rule is:

y = 2x + 3.

For Sidewalk 2, when x changes by 2, y decays by 2, hence the slope is:

m = -2/2 = -1.

The line goes through point (1,5), hence the equation in point-slope form is:

y - 5 = -(x - 1).

Combining the like terms, the slope-intercept form is:

y - 5 = -x + 1

y = -x + 6.

Since the two lines have different slopes, the system is consistent independent.

The x-coordinate of the intersection is:

-x + 6 = 3 + 2x.

3x = 3

x = 1.

The y-coordinate is:

-x + 6 = -1 + 6 = 5.

Hence the intersection point is:

(1, 5).

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Answer: I am I don't know man

Step-by-step explanation: answer is I don't know.

Answer:

Answer 1: Rajesh: 93/100 Sita: 82/100 (simplest form: 41/50) Rajesh earned more.

Answer 2: 11/100 more marks

Answer 3: Rajesh got an A, while Sita got a B-

Step-by-step explanation:

Put the 93 on top of 100, and do the same for 82.

Rajesh clearly earned more. Subtract 82 from 93 to find out Rajesh score 11 points more.

from the question, we were told in 1995, Charter charged a flat rate of

$39.95 for the first twenty hours.

and an additional per hour charge of $5.99

if,

for 20 hours = 39.95

therefore for 1 hour = 39.95/20

so for 18 hours = 39.95/20 X 18.95/20

so for 18 hours = 9

so,

to get the amount Charter bill for 18 hours in 1995 is,

39.95 x 18/20

= 39.95 x 0.9

= $35.955

so Charter bill for 18 hours of internet used in 1995 is $35.955

ould bill for 28 hours is

so, what Charter would

Answer:

y = -x + 1

Step-by-step explanation:

y =mx + b

It is crossing the y axis at 1 that is the b

The slope (m) is -1.  From one point on the line to another you go down 1 and left 1.  That represents a negative slope of 1

A. The slope of the function = 1.5.

a = 15; b = 3; c = 3; d = 1.5

B. y-intercept (b) = 7.5

C. The equation of the function is: y = 1.5x + 7.5.

The height in 10 years is approximately 17.5 feet.

The equation of a function can be expressed as y = mx + b, if we know the value of the slope, m, and the value of the y-intercept, b.

Part A:

Using the two points on the graph, we can find the slope of the function as shown below:

The two points are (3, 12) and (5, 15):

Slope of the function = (15 - 12)/(5 - 3)

= 3/2

Slope (m) = 1.5.

Thus, the values that represents each letters would be:

a = 15; b = 3; c = 3; d = 1.5

Part B: The y-intercept of the function

The y-intercept of the function can be defined as the initial tree height which is the point where the line intercepts the y-axis of the graph.

Substitute m = 1.5 and (x, y) = (3, 12) into y = mx + b to find the y-intercept (b) of the function:

12 = 1.5(3) + b

12 = 4.5 + b

12 - 4.5 = b

7.5 = b

b = 7.5

y-intercept (b) = 7.5

Part C: To write the equation of the function, substitute m = 1.5 and b = 7.5 into y = mx + b:

y = 1.5x + 7.5.

Therefore, the initiate tree height is 7.5 feet, and it increases at a rate of 1.5 feet per year.

To find the height in 10 years, substitute x = 10 into the equation of the function, y = 1.5x + 7.5:

y = 1.5(10) + 7.5

y = 10 + 7.5

y = 17.5 feet

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PLUG IN THE VALUES IN THE RIGHT POSITIONS AND SIMPLIFY.

[tex] = 2( \frac{1}{2} + \frac{3}{4} ) + 6 \\ = 2( \frac{5}{4} ) + 6 \\ = \frac{10}{4} + 6 \\ = \frac{5}{2} + 6 \\ = \frac{17}{2} [/tex]

THE ANSWER IS OPTION C.

Answer:

Step-by-step explanation:

The spending is the cost plus expenses:

Net income is the difference of money made and spent:

Answer:

Step-by-step explanation:I don’t know

The slope of line through points (-2, 2) and (-4, -1) is 3/2 by using the slope-point formula that tells that change in y divided by change in x.

A line's steepness can be determined by looking at its slope. Slope is calculated mathematically as "rise over run" (change in y divided by change in x). In mathematics, a line's slope, also known as its gradient, is a numerical representation of the line's steepness and direction.

A point is a basic concept in classical Euclidean geometry that represents an exact location in space and has no length, width, or thickness. In contemporary mathematics, a point more broadly refers to a component of a set known as a space.

Here,

The points are (-2, 2) and (-4, -1)

m=(y2-y1)/(x2-x1)

m=Δy/Δx

m=(-1-2)/(-4+2)

m=3/2

By dividing the change in y by the change in x, the slope of the line passing through the points (-2, 2) and (-4, -1) is 3/2.

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EXPLANATION

Since we know that the number of hours is represented by a periodic function, the appropriate model is the sine function.

As the average number of daylight hours is 12 with a maximum and minimum of 14.4 and 9.6 respectively.

Furthermore, the period is 365.

Thus, the period is as follows:

The appropiate model is the following:

Now, we need to compute the value of a:

Since the sine function reaches its highest value at t=90° and is represented by 14.4, when t=90°, the value of the function is asin(0.017t) = 1

Therefore,

14.4 = a + 12

Subtracting -12 to both sides:

14.4 - 12 = a

Subtracting numbers:

2.4 = a

In conclusion, the final function is the following:

Since the minimum is at t=0, we want:

In conclusion, the solution is the OPTION C)

The biconditional statement is "You study for your test if and only if you passed".

What is biconditional statement?

A biconditional statement combines a conditional statement with its opposite expressed in the form of "if and only if."

The given statements are,

"If you study for your test, then you will pass your test"  and "you passed your test then you studied for your test".

The biconditional statement is: "You study for your test if and only if you passed".

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Based on angle relationships, the missing angle measures are:

a = 118° [same side exterior angles]

b = 118° [vertical angles]

c = 32° [Linear pair]

d = 32° [same side interior angles]

Some of the angle relationships that can be used to determine the measures of angles that are formed when two parallel lines are intersected by a transversal are:

Using angle relationships, the following angle measures are determined as follows:

a = 180 - 62 = 118° [same side exterior angles]

b = a [vertical angles]

b = 118°

c = 180 - 148 [Linear pair]

c = 32°

d = 2 [same side interior angles]

d = 32°

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The solution for the given linear equation is z = 6

Here we have the following linear equation:

10 = z/2 + 7

To solve it, we need to isolate the variable in one of the sides of the equation.

First, we can subtract 7 in both sides:

10 - 7 = z/2 + 7 - 7

3 = z/2

Now we can multiply both sides by 2 to get:

2*3 = 2*(z/2)

6 = z

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Answer:

x = ± 3

Step-by-step explanation:

given y varies as [tex]\frac{1}{x^2}[/tex] , then

y = k × [tex]\frac{1}{x^2}[/tex] = [tex]\frac{k}{x^2}[/tex] ← k is the constant of variation

to find k use the condition x = 2 , y = 1

1 = [tex]\frac{k}{2^2}[/tex] = [tex]\frac{k}{4}[/tex] ( multiply both sides by 4 )

4 = k

y = [tex]\frac{4}{x^2}[/tex] ← equation of variation

when y = [tex]\frac{4}{9}[/tex] , then

[tex]\frac{4}{9}[/tex] = [tex]\frac{4}{x^2}[/tex] ( cross- multiply )

4x² = 36 ( divide both sides by 4 )

x² = 9 ( take square root of both sides )

x = ± [tex]\sqrt{9}[/tex] = ± 3

Answer:

D

Step-by-step explanation:

(14x + 18) and 116 are corresponding angles and are congruent, then

14x + 18 = 116 ( subtract 18 from both sides )

14x = 98 ( divide both sides by 14 )

x = 7

When b²−4ac=0 there is one real root.

When b²−4ac>0 there are two real roots.

When b²−4ac<0 no real roots or two complex roots

First equation

-x²-4x+7

b²−4ac>0, then equation -x²-4x+7 has two real roots.

Second equation

-2x²+9x-11

b²−4ac<0, then equation -2x²+9x-11 has two complex roots.

Third equation

3x²-6x+3

b²−4ac=0, then equation 3x²-6x+3 has one root.

For this problem, we are given the following rational function:

We need to determine the horizontal asymptote for this function. In order to determine this, we need to calculate the limit of the function when x approaches infinity. We have:

The horizontal asymptote exists at y= 4/3. The correct option is C.

The ratio of the number of girls to the number of adults is 5 : 1.

Ratio is used to compare two or more values together. Ratio shows the frequency of one number compared to the frequency of another number. The sign that is used to represent ratio is :.  

The ratio of the number of girls to the number of adults = number of girls : number of adults

number of girls = 100

number of adults = 20

The ratio of the number of girls to the number of adults = 100 : 20

Express the ratio in its simplest form. To do this, divide both numbers by the greatest common factor of 100 and 20. The greatest common factor of 100 and 20 is 20.

The ratio of the number of girls to the number of adults = 5 : 1

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The rule for the given function f /g when the function f(x) = -3x -6 and

g(x) = x² -x - 6 is identified as  f(x) / g(x) = -3 / (x -3).

As given in the question,

Given function are:

f(x) = -3x -6

g(x) = x² -x - 6

Rule to identify for the function f(x) / g(x) we get,

Substitute the value of f(x) and g(x) in the required rule we have,

f(x) / g(x) = (-3x -6 ) / ( x² -x - 6 )

Now simplify the function to get the rule:

f(x) / g(x) = -3(x+2) / (x² -3x +2x -6)

⇒ f(x) / g(x) = -3(x+2) /(x-3)(x+2)

⇒ f(x) / g(x) = -3 / (x-3)

Therefore, the rule for the given function f /g when the function f(x) = -3x -6 and g(x) = x² -x - 6 is identified as  f(x) / g(x) = -3 / (x -3).

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The slope of the line parallel to y = 4  / 7 x + 7 is 4  /7.

The slope of the line perpendicular to y = 4  / 7 x + 7 is - 7 / 4.

The equation of a line can be described as follows:

y = mx + b

where

The equation of the line given is y = 4  / 7 x + 7.

Parallel lines have the same slope.

Therefore, the slope of the line parallel to the given equation of the line is 4 / 7.

A line perpendicular to each other follows the rule below:

m₁ m₂ = -1

where

Therefore, let's find the slope of the line perpendicular to the given equation.

4 / 7 m₂ = -1

cross multiply

4m₂ = -7

m₂ = - 7 / 4

Therefore, the slope of the line perpendicular to the equation is - 7/4

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Answer Las raíces de la ecuación x2 − 6x + 7 = 0 son α y β. Encuentra la ecuación con raíces α + 1 β y β + 1 α. Deduzco que α + β = − b a = 6 1 = 6 y que αβ = c a = 7 1 = 7.

Step-by-step explanation: