8x-10-4x= - 1/2 (12x-20) what is x

A sample size of 20 people is often enough to get a good estimate of the population mean and standard deviation, provided that the sample is random and unbiased. Hence, measuring the pace of every 20th person who walks by is a good method to get a representative sample.

The method used to measure the walking pace of the people who walk by is: Selecting high pedestrian traffic places and then measuring the pace (in steps per minute) of every 20th person who walks by.

What is a high pedestrian traffic place?

A high pedestrian traffic place is a place where there is a large number of people who are walking at a certain time. For example, a busy sidewalk, a crowded market, or a train station. The researcher is interested in how fast people walk in different parts of the country. He wants to measure the pace of people in various parts of the United States. To do so, he randomly selects 50 cities and towns from all over the country and then finds a place with high pedestrian traffic in each city. Then he measures the pace of every 20th person who walks by. This method is used to get a representative sample of the people who walk in different parts of the country. Measuring the pace of every 20th person is done to make sure the random sample and not biased

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Since Tony is self-employed, he will have to pay all of the tax himself.

Take his adjusted earnings times the tax rate

58238.74 * 2.9%

58238.74 * .029

1688.92346

Rounding to the nearest cent

1688.92

Answer:

 y = -1/2x + 4

Step-by-step explanation:

We have two points ( 8,0) and ( 0,4)

We can find the slope

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

    = (4-0)/(0-8)

    4/-8

   -1/2

We can use the slope intercept form

 y = mx+b where m is the slope and b is the y intercept

 y = -1/2x + 4

Answer:

Step-by-step explanation:

eq. of line with intercepts a and b is

\(\frac{x}{a} +\frac{y}{b} =1\\here ~eq. ~of ~line~ is ~ \frac{x}{8} +\frac{y}{4} =1\\or x+2y=8\\\)

Answer:

Step-by-step explanation:

You want to know angles x, y, and z in the given figure where parallel lines 'a' and 'b' are crossed by a transversal. The sum of these angles is 290°.

Angles y and z are called consecutive interior angles. As such, they are supplementary, so their sum is 180°.

  x + y + z = 290°

  x + 180° = 290°

  x = 110°

Angles x and y are vertical angles, so are congruent.

  y = x = 110°

Then z is found from ...

  y + z = 180°

  110° + z = 180°

  z = 70°

The measures of x, y, and z are 110°, 110°, and 70°, respectively.

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The complex number (1 + 2i) - (-2 + 16) can be expressed in Euler form as -1.29e^(7.28i).(option B).

To express the given complex number in Euler form, we first simplify the expression: (1 + 2i) - (-2 + 16) = 3 - 2i. Next, we can write the complex number in polar form by finding the magnitude (r) and argument (θ) of the complex number. The magnitude r is given by r = sqrt(3^2 + (-2)^2) = sqrt(13). The argument θ can be calculated as θ = arctan(-2/3). Finally, we can express the complex number in Euler form as -1.29e^(7.28i), where -1.29 is the magnitude (r) multiplied by the cosine of the argument (θ), and 7.28 is the sine of the argument (θ).

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The equation in slope-intercept form representing the number of questions on the test is y = 5x + 10.

To write the equation in slope-intercept form, we need to determine the relationship between the number of spelling questions (x) and the number of vocabulary questions (y) on the test.

Given that spelling questions are worth 5 points and vocabulary questions are worth 10 points, we can express the total number of points on the test as 5x + 10y. Since the maximum number of points on the test is 100, we have the equation 5x + 10y = 100.

To write the equation in slope-intercept form (y = mx + b), where m represents the slope and b represents the y-intercept, we rearrange the equation. First, we divide both sides of the equation by 10 to simplify: x + 2y = 20.

Next, we isolate y by subtracting x from both sides: 2y = -x + 20. Finally, we divide both sides by 2 to solve for y: y = -0.5x + 10.

Therefore, the equation in slope-intercept form representing the number of questions on the test is y = 5x + 10.

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Answer: B

Step-by-step explanation: I took the quiz and got it right

Also, if you graph the equations on a graphing calculator, the lines are right on top of each other, so the first equation can't be less than -1, so no solutions

The true statement about the inequality graphs is (d)

The equations are given as:

y=2sin^2(x) +cos(2x)-2 and y=-1

When the above equations are plotted, both lines fall on each other.

This means that:

The equations y=2sin^2(x) +cos(2x)-2 and y=-1 have the same value.

So, we can conclude that the system of equations have infinite number of solutions

Hence, the true statement about the inequality graphs is (b)

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Answer: x= -9/5   or x = -1.8

Step-by-step explanation:

4x + 30 = -6(x - 2)   First apply the distributive property on the left side

4x + 30 = -6x + 12      Add 6x to both sides

+6x           +6x

   10x + 30 = 12     Subtract 30 from both sides

           -30    -30

10x = -18     Divide both sides by 10

 x = -9/5     or x = -1.8

Answer:

the answer is -1.8 if you want to use the decimal and -9/5 if you want to use the fraction

Step-by-step explanation:

4x + 30 = -6(x - 2)

4x+30 = -6x + 12

4x + 6x = 12 - 30

10x = -18

divide both side by 10

x = -9/5 or -1 4/5 or -1.8

( also not trying to gatekeep so i wanna say that i got this answer from an app named photomath. i scanned the question in the camera and it pulled the answer. hoped it helped love!)

As the law of supply and demand states, there is an effect on the price of a product depending on its availability.

If there is a low supply and a high demand, there is an increase in price and vice versa.

Last 2012, there was a virus which infected millions of chicken. It was known as Avian influenza or bird flu. It resulted to scarcity of eggs.

As the law of supply and demand states, there is an effect on the price of a product depending on its availability.

For example we can use water. If a product becomes scarce its price would increase due to supply in demand.

If drinkable water became scarce its price would be greatly increased to its need and being in extreme demand.

In short,  if there is a low supply and a high demand, there is an increase in price and vice versa.

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Answer:

3r

Step-by-step explanation:

r × 3

3r

Answer:

3

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

180 x 0.05

Answer:

see below

Step-by-step explanation:

tan theta = opp/ adj

tan S = 45/24 = 15/8

tan R = 24/45 = 8/15

Answer:

2/1

Step-by-step explanation:

Use the equation m=\(\frac{y2-y1}{x2-x1}\)

The number of times a card with the number 10 would be drawn when the total number ofcards drawn in the simulation is 1,440 will be 240 tines.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.

In thi situation, the simulation shows that the number of times 10 is drawn is 1/6. The number of times a card with the number 10 would be drawn when the total number ofcards drawn in the simulation is 1,440 will be:

= 1/6 × 1440

= 240 times.

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Complete question

The simulation shows that the number of times 10 is drawn is 1/6. Use the simulation to predict the number of times a card with the number 10 would be drawn when the total number ofcards drawn in the simulation is 1,440.

Answer:

Step-by-step explanation:

A root or a zero of a polynomial are the value(s) of X that cause the polynomial to = 0 (or make Y=0). It is an X-intercept. The root is the X-value, and zero is the Y-value. It is not saying that imaginary roots = 0.

Answer:

x = 4

x = -5

I have made it in above picture

hope it helps

The steps in Mia's method were smaller than in Jenna's, which was an advantage.

The same result will be obtained by adding the products of multiplying the sum of two or more addends by a number as opposed to multiplying each addend separately by the number.

The direct algorithm process suggested in this paper is known as the direct calculation method (DCM), and it can deal with using confinement loss as an incremental step to simulate the effect of moving tunnel face excavation, calculating the stresses and displacements in each step, and drawing the results.

Jenna's technique:

\(\begin{aligned}&5(30+4) \\&=(5)(30)+(5)(4) \\&=150+20 \\&=170\end{aligned}\)

Mia's technique:

\(\begin{aligned}&5(30+4) \\&=(5)(34) \\&=170\end{aligned}\)

Both used the right approach, albeit in different ways.

One uses the distributive property, whereas the other uses direct calculation.

Consequently, Jenna and Mia came to the same conclusion.

However, Mia's approach has one advantage over Jenna's: it requires fewer steps.

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Answer:

25

Step-by-step explanation:

5+9=14

5/14x70=25

Point-Slope form:

\( \large \boxed{y - y_1 = m(x - x_1)}\)

The slope is represented as m-term. Hence the slope is 5.

Answer

An arithmetic sequence is a sequence of numbers in which each term is found by adding or subtracting a fixed number to the previous term.

1. An arithmetic sequence is a sequence of numbers in which each term is found by adding or subtracting a fixed number to the previous term. For example, 1, 3, 5, 7, 9 is an arithmetic sequence. We get the next term by adding 2 to the previous term. In order to create an arithmetic sequence, we must determine the first term and the common difference. The first term is the starting number. It is represented by a and a subscript 1. The common difference is represented by d. The formula for the nth term in an arithmetic sequence is: a_n = a_1 + (n-1)d1.

2. For example, let's create an arithmetic sequence with a_1 = 2 and d = 3. We get the sequence 2, 5, 8, 11, 14. The first five terms are: 2, 5, 8, 11, 14.

3. The common difference is 3.

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Answer:

102 and 118

Step-by-step explanation:

To determine the number of pattern block rhombuses needed to create 2 hexagons, we need to understand the relationship between the two shapes.

A pattern block rhombus is a rhombus-shaped tile commonly used in geometry and math education. It is composed of two equilateral triangles joined together.

A hexagon, on the other hand, is a polygon with six sides. Each side of a regular hexagon is congruent to the others, and all its angles are equal.

In order to create a hexagon using pattern block rhombuses, we need to consider the arrangement of the rhombuses. Let's assume that the hexagons we want to create are regular hexagons.

A regular hexagon can be divided into six equilateral triangles. Each equilateral triangle can be formed using two pattern block rhombuses. Therefore, to create one regular hexagon, we need a total of 6 equilateral triangles x 2 rhombuses per triangle = 12 pattern block rhombuses.

Since we want to create 2 hexagons, we multiply the number of rhombuses required for one hexagon by 2:

12 pattern block rhombuses per hexagon x 2 hexagons = 24 pattern block rhombuses.

Therefore, we would need 24 pattern block rhombuses to create 2 regular hexagons.

Answer:

You divide 72 by the annual rate of return you receive on your investments, and that number is a rough estimate of years it takes to double your money.

Answer:

110degrees

Step-by-step explanation:

Complete question

Q4: If x and y are two supplementary angles whereas m<x=70 then find the m<y.

The sum of two supplementary angles is 180degrees, hence;

m<x + m<y = 180

70 + m<y = 180

m<y = 180 - 70

m<y = 110degrees

Hence the measure of ,=m<y is 110degrees

Answer:

3rd option

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 5 and (a, b ) = (1, 9 ) , then

y - 9 = 5(x - 1)

The equation of the line will be y - 9 = 5(x - 1). The correct option is C.

An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.

The general form of the equation is given by:-

y = mx + c

The equation of a line in point-slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

Here m = 5 and (a, b ) = (1, 9 ) , then

y - 9 = 5(x - 1)

Therefore, the equation of the line will be y - 9 = 5(x - 1). The correct option is C.

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Answer:

196101

Step-by-step explanation:

Answer:

diameter

Step-by-step explanation:

BD is the diameter of the circle.

Answer:

22.05

Step-by-step explanation:

i used a calculator

35% of 63 is 22.05.

A percentage is a number or ratio expressed as a fraction of 100.

Given that 35% of 63,

35/100*63 =  22.05

Hence, 35% of 63 is 22.05.

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