1) Find 0.2+(-0.6).
» Model the expression on the number line

The denim fabric costs $4 per meter and the cotton fabric costs $3 per meter.

To find out the cost per meter of each type of fabric, we can set up a system of two equations. Let d be the cost per meter of denim fabric and c be the cost per meter of cotton fabric. Then, we have:

3d + 5c = 22 (equation 1)

6d + 2c = 28 (equation 2)

We can use equation 2 to solve for one of the variables in terms of the other. Solving for c, we get:

c = 14 - 3d (equation 3)

We can substitute equation 3 into equation 1 and solve for d:

3d + 5(14 - 3d) = 22

Simplifying this equation, we get:

4d = 3

Therefore, d = 0.75, which means the denim fabric costs $0.75 per meter.

We can then use equation 3 to find the cost per meter of cotton fabric:

c = 14 - 3(0.75) = 11.25/2 = $5.625

Therefore, the cotton fabric costs $5.625 per meter.

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Answer:

7/15

I hope this helps and I apologize if I'm wrong.

Can you tell me if I was wrong or right?

Nepali rupees that the person requires to exchange $4500 will be equal to NRs. 555,022.8.

We know that:

$ 1 = NRs. 120.92

We are also given that a person needs $ 4500 to visit foreign countries.

Also, for the conversion, bank charges commission as 2 %

Now, $ 4500 in NRs. will be calculated by multiplying 120.92 with $ 4500.

$ 4500 = NRs. 120.92 × 4500

$ 4500 = NRs. 544,140

Now the commission charged by the bank will be:

2 % of 544,140

Commission = 2 / 100 × 544,140

Commission = NRs. 10,882.8

So, the amount the person will require to get $ 4500 will be = NRs. 544,140 + 10,882.8

= NRs. 555,022.8

Therefore, Nepali rupees that the person requires to exchange $4500 will be equal to NRs. 555,022.8.

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Answer:

Step-by-step explanation:

To find:-

Answer:-

From the given figure we can see that there are three right angled triangles namely ∆ACB , ∆BCD and ∆ACD .

To find out the value of x , we will have to use Pythagoras theorem . The Pythagoras theorem is ,

Pythagoras theorem:-

In a triangle hypotenuse is the longest side . In a right angled triangles, the side opposite to 90° will be hypotenuse.

Using Pythagoras theorem in ∆ACB :-

\(\longrightarrow AB^2+BC^2= AC^2 \\\)

\(\longrightarrow 9^2 + x^2 = AC^2 \dots(1)\\\)

Using Pythagoras theorem in ∆BCD:-

\(\longrightarrow BC^2 + BD^2 = CD^2 \\\)

\(\longrightarrow x^2+25^2 = CD^2 \dots(2) \\\)

Using Pythagoras theorem in ∆ACD :-

\(\longrightarrow AC^2 + CD^2 = AD^2 \\\)

Substituting the respective values from equations (1) and (2) ,

\(\longrightarrow 9^2 + x^2 + x^2 + 25^2 = (9+25)^2 \\\)

\(\longrightarrow 81 + 2x^2 + 625 = 34^2 \\\)

\(\longrightarrow 2x^2 + 706 = 1156 \\\)

\(\longrightarrow 2x^2 = 1156-706 \\\)

\(\longrightarrow 2x^2 = 450\\\)

\(\longrightarrow x^2 =\dfrac{450}{2}\\\)

\(\longrightarrow x = \sqrt{225} \\\)

\(\longrightarrow \underline{\boxed{\boldsymbol{ x = 15 }}} \\\)

Therefore the value of x is 15 .

Answer:

x = 15

Step-by-step explanation:

To find the value of x, use the Geometric Mean Theorem (Altitude Rule).

The altitude drawn from the vertex of the right angle perpendicular to the hypotenuse separates the hypotenuse into two segments. The ratio of the altitude to one segment is equal to the ratio of the other segment to the altitude:

\(\boxed{\sf \dfrac{Altitude}{Segment\:1}=\dfrac{Segment\:2}{Altitude}}\)

From inspection of the given right triangle:

To find the value of x, substitute the values into the formula and solve for x:

\(\implies \dfrac{x}{9}=\dfrac{25}{x}\)

\(\implies \dfrac{x}{9}\cdot 9x=\dfrac{25}{x}\cdot 9x\)

\(\implies x \cdot x=25\cdot9\)

\(\implies x^2=225\)

\(\implies \sqrt{x^2}=\sqrt{225}\)

\(\implies x=15\)

Therefore, the value of x is 15.

Angle X, Angle W, Angle Y.

==========================================================

Explanation:

There are two rules we'll use here, which applies to any triangle.

Since WY = 11 is the longest side, the largest angle must be angle X as it's opposite this side.

Since WX = 5 is the shortest side, the smallest angle must be angle Y as it's opposite this side.

This places angle W somewhere in the middle of angles X and Y.

The order of the angles from largest to smallest is X, W, Y which shows us that choice B is the answer.

Choice D would be the answer if you wanted to sort the angles from smallest to largest.

The order of the angles from largest to smallest is Angle X > Angle W > Angle Y.

A triangle is a closed polygon with three sides, angles and vertices.

Given is triangle, WXY, we need to order the angles from largest to smallest,

We know that,

The smallest angle is always opposite the smallest side.

The largest angle is always opposite the largest side.

Hence, the order of the angles from largest to smallest is Angle X > Angle W > Angle Y.

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The dimensions of the border is 1.5 feet for the garden

A rectangle is a quadrilateral with four sides and four angles in which opposite sides are equal and parallel.

The area of a rectangle = Length * breadth

Given that length of garden = 16 ft., width of garden = 12 ft.

It is surrounded by a mulch of width x, hence:

New length = 16 + x + x = 16 + 2x

New width = 12 + x + x = 12 + 2x

The area of garden = 16 + 2x(12 + 2x) = 192 + 56x + 4x²

Since the maximum area is 285 ft, hence:

192 + 56x + 4x² = 285

4x² + 56x - 93 = 0

x = 1.5 feet

The dimensions of the border is 1.5 feet

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Answer:

5r³ - 34r² + 44r - 16

Step-by-step explanation:

use the distributive property

5r × (r² − 6r + 4) - 4× (r² − 6r + 4)

5r³ - 30r² + 20r - 4r² + 24r - 16

combine like terms

5r³ - 30r² - 4r² + 20r + 24r - 16

5r³ - 34r² + 44r - 16

Hope this helped!!

Answer:

A. 5r3 − 34r2 + 44r − 16

Step-by-step explanation:

Answer:

49 coins.

Step-by-step explanation:

It takes 10 dimes to equal a dollar, therefore fourty dimes equals four dollars.

Eight more dimes for the eighty cents, and one nickel for the 5 cents.

Answer:

casa. Completa las oraciones con el pronombre de objeto directo correcto, según el contexto.

1. Tu ropa está sucia. ¿Por qué no ____ lavas?

2. Ellos tienen muchos libros. ____ tienen en la estantería del despacho.

3. La casa de mi mamá tiene muchas ventanas, pero no ______ abre todos los días.

4. Profesora, Ud. debe usar la cochera. ¿ ______ve allí?

5. ¿Quieres ir al cine con nosotros? _____ llamamos antes de salir.

It involves setting up null and alternative hypotheses and testing the evidence against the null hypothesis.

To determine whether to use a hypothesis test or a confidence interval, we need to consider the goal of the analysis. A hypothesis test is appropriate when we want to make a conclusion about a population based on sample data.

It involves setting up null and alternative hypotheses and testing the evidence against the null hypothesis. On the other hand, a confidence interval is used to estimate an unknown parameter of a population.

It provides a range of plausible values for the parameter with a specified level of confidence. Thus, if we are interested in making a conclusion or testing a claim about a population, we would use a hypothesis test.

If our objective is to estimate an unknown parameter, we would employ a confidence interval and state the parameter using the correct notation.

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Answer: moderate, C, B

Step-by-step explanation:

A)  A shows a moderate negative correlation.  It is moderate because the scattered points are sort of close to the line so it has moderate/medium correlation.  It is also negative because it has a negative slope

B) C shows the strongest correlation because the points around the line are tight and close.

C)  B should not have been drawn.  The  correlation is very weak.  You do know where the line should be because the points are all over the place.

Answer:

The slope of the line passing through the points (1, -1) and (4, 8) is 3.

Step-by-step explanation:

The slope of a line passing through two points (x1, y1) and (x2, y2) is given by the following formula:

\(slope = (y2 - y1) / (x2 - x1)\)

Here, the given points are (1, -1) and (4, 8). So,

\(slope = (8 - (-1)) / (4 - 1) = 9 / 3 = 3\)

Therefore, the slope of the line passing through the points (1, -1) and (4, 8) is 3.

To model the height of the chair on a Ferris wheel as a function of time, we can create a drawing of the situation and use trigonometric functions.

The height of the chair can be represented as a sinusoidal function with an amplitude equal to the radius of the Ferris wheel and the period determined by the rate of rotation.

To create a model for the height of the chair on the Ferris wheel, we can visualize the situation by drawing a Ferris wheel with a radius of 25 feet. The lowest point on the wheel is 5 feet above the ground.

As the Ferris wheel rotates, the chair goes through one complete revolution every 60 seconds (3 revolutions per minute). This corresponds to a period of 60 seconds.

We can model the height of the chair as a function of time using a sinusoidal function. Since the radius of the Ferris wheel is 25 feet, the amplitude of the function is 25.

The equation for the height h (in feet) of the chair as a function of time t (in seconds) can be written as h(t) = 25 sin(2πt/60) + 5.

In this equation, the term sin(2πt/60) represents the periodic oscillation of the chair's height as it rotates around the Ferris wheel. The amplitude of 25 scales the oscillation, and the constant term of 5 represents the initial height of the chair when t=0 at the lowest point of the wheel.

Thus, by creating a drawing and using trigonometric functions, we can model the height of the chair on the Ferris wheel as a function of time.

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Answer: the answer is a hard doosie

Step-by-step explanation:

The given "proof" is incomplete and does no longer provide a convincing argument for the statement that \(\sqrt{n}\) is irrational for every natural wide variety of n.

It begins by assuming that \(\sqrt{n}\) is rational, represented as \(\sqrt{n}\) = a/b, wherein a and b are integers and not using common factors and b isn't equal to zero.

The blunders in this evidence lie within the assumption that \(\sqrt{n}\) can be represented as a rational number. The evidence fails to expose a contradiction or offer proof that \(\sqrt{n}\) can not be expressed as a ratio of integers. In order to prove that \(\sqrt{n}\) is irrational, one has to show that there are not any viable values for a and b that satisfy the equation √n = a/b.

To establish the irrationality of \(\sqrt{n}\), legitimate evidence usually utilizes techniques along with evidence with the aid of contradiction or evidence by means of high factorization. These techniques involve assuming that \(\sqrt{n}\) is rational, manipulating the equation, and deriving a contradiction or showing that the idea results in a not possible situation.

Since the given proof lacks those crucial elements, it can't establish a declaration that \(\sqrt{n}\) is irrational for each natural range n.

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The correct question is:

"What is wrong with the following "proof" of the statement that \(\sqrt{n}\) is irrational for every natural number n? "proof ". Suppose that \(\sqrt{n}\) is rational is a rational number."

The exponential model for the population can be written as P = 20000 * 1.171^t, where P is the population after t years, 1.171 is the growth factor per year (100% + 17.1%), and 20000 is the initial population.

This equation assumes that the population grows continuously at a constant rate of 17.1% per year. It is an example of exponential growth, which means that the population increases at an increasingly faster rate over time.

Using this model, we can predict the population size at any point in the future. For example, after 5 years, the population would be P = 20000 * 1.171^5 = 41,992 organisms. It is important to note that this model is based on certain assumptions, such as unlimited resources and a constant growth rate, which may not always hold true in real-world scenarios.

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The width of the postcard, based on the given scale, would be approximately 6.12 inches.

We can make use of the scale, where 1 foot is represented by 1.8 inches.

First, we must use the scale to translate the painting's width from feet to inches:

Width of the painting in inches = Width of the painting in feet * Scale factor

Width of the painting in inches = 3.4 feet * 1.8 inches/foot

Width of the painting in inches ≈ 6.12 inches

Therefore, the width of the postcard, based on the given scale, would be approximately 6.12 inches.

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Answer:

300+45m≤500

Step-by-step explanation:

Only wanted the answer

Hope this helped!

Answer:

12.7x +0.7, I hope this helps. You did not provide what to do with the equation.

Answer:

12.7x + 0.7

Step-by-step explanation:

I simplified it. Hope that’s what you needed.

Pls give brainliest!

6. The number of times the full address is written in one minute is the dependent variable. 7. The time in minutes is the independent variable. 8. The relationship between the dependent variable and the independent variable is that the number of times the full address is written is dependent on the amount of time given to write it.

Based on the information provided:
6. The dependent variable is the number of times you can write your full address in a minute.
7. The independent variable is the time (in minutes).
8. The relationship between the dependent variable and the independent variable is that as the time (independent variable) increases, the number of times you can write your full address (dependent variable) also increases.

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The solution to the system of equations will be;

⇒ (2, 0)

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Given that;

The first equation is,

y = - 2x + 4

And, A line goes through (0, 4) and (2, 0).

Now,

For the second linear equation;

The coordinates are,

(-4, -3) (0, -1) , (2, 0) , (6, 2)

Hence, The equation of line passes through the points (-4, -3) and (0, -1).

So, We need to find the slope of the line.

Hence, Slope of the line is,

m = (y₂ - y₁) / (x₂ - x₁)

m = (- 1 - (-3)) / (0 - (-4))

m = 2 / 4

m = 1/2

Thus, The equation of line with slope 1/2 is,

⇒ y - (-3)= 1/2 (x - (-4))

⇒ y + 3 = 1/2 (x + 4)

⇒ y = 1/2x + 2 - 3

⇒ y = 1/2x - 1

Now, We find the value of system of equations;

y = - 2x + 4

y = 1/2x - 1

Solve both above equation, we get;

1/2x - 1 = - 2x + 4

1/2x + 2x = 4 + 1

5/2x = 5

x = 2

And, y = 1/2 (2) - 1 = 0

Thus, The solution to the system of equations will be;

⇒ (2, 0)

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Answer:

A

Step-by-step explanation:

Answer:

0.25 and 0.80 would be the answer

Answer:

3:2

Step-by-step explanation:

the answer is 3:2 because if you divide them by 2 you get 3:2

There are 18 deluxe rooms in the hotel.

To find the number of deluxe rooms in the hotel, we need to calculate the percentage of rooms that are deluxe.

The percentage of single-bed rooms is 55%, and the percentage of double-bedrooms is 30%. Therefore, the percentage of deluxe rooms can be calculated as:

Percentage of deluxe rooms = 100% - (Percentage of single-bed rooms + Percentage of double-bedrooms)

= 100% - (55% + 30%)

= 100% - 85%

= 15%

So, 15% of the total rooms in the hotel are deluxe rooms.

To determine the number of deluxe rooms, we can multiply the total number of rooms by the percentage of deluxe rooms:

Number of deluxe rooms = 15% of 120 rooms

= (15/100) * 120

= 0.15 * 120

= 18

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To find the length of the curve r(t) = sqrt(2)ti, we need to use the arc length formula:L = ∫[a,b] ||r'(t)|| dt,where ||r'(t)|| is the magnitude of the derivative of the curve.

First, we need to find r'(t):

r'(t) = (d/dt) [sqrt(2)ti] = sqrt(2)i

The magnitude of r'(t) is ||r'(t)|| = sqrt(2).

So, the length of the curve is:

L = ∫[0,1] sqrt(2) dt = sqrt(2) * [t] [0,1] = sqrt(2)

Therefore, the length of the curve r(t) = sqrt(2)ti is sqrt(2).

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Usando un sistema de ecuaciones, se encuentra que

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

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

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

Primero, encontramos la edad de Pedro, reemplazando la primera ecuación en la segunda

\(x + 6 = 2(y + 6)\)

\(y + 25 + 6 = 2y + 12\)

\(y + 31 = 2y + 12\)

\(2y - y = 31 - 12\)

\(y = 19\)

Pedro tiene 19 años.

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

Quanto a Javier:

\(x = y + 25 = 19 + 25 = 44\)

Javier tiene 44 años.

Se encuentra um problema similar en https://brainly.com/question/23247118

Answer:

what am i suppose to help with

Step-by-step explanation:

Answer:

umm, theres nothing there

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

I think it's D

Step-by-step explanation:

Sorry if im wrong.