I need some help with this question

If 120 students prefer hamburgers, how many students were surveyed?​

Answer:

Step-by-step explanation:

It’s multiplication and then division. Just did it on edge2020.

Answer:

: )

Step-by-step explanation:

multiplication property of equality

division property of equality

answer

7.24

explanation

40% of 6000 = 2400

6000-2400=3600

labour's cost = 2400

material cost = 3600

15% of 2400 = 360

2400 + 360 = 2760

20% of 3600 = 720

3600 - 720 = 2880

2760 + 2880 = 5560

6000 : 5560 = 92.76

gap = 100.00 - 92.76

= 7.24

Answer:

G. $9,200

Step-by-step explanation:

average depreciation = (amount of depreciation)/(number of years)

The amount of depreciation is the difference between the new cost and the current value.

amount of depreciation = $85,600 - $30,400 = $55,200

number of years = 6

average depreciation = (amount of depreciation)/(number of years)

average depreciation = ($55,200)/(6 years)

average depreciation = $9,200/year

Answer: G. $9,200

Answer:

216 cubic meters

Step-by-step explanation:

6m x 6m x 6m = 216 cubic meters

Answer:

yeah he is correct it is 216

Step-by-step explanation:

When testing partial correlation, the impact of a third variable is removed.

Partial correlation is a statistical technique used to measure the relationship between two variables while controlling for the effect of one or more additional variables, known as "covariates" or "control variables." By removing the effect of the covariates, the partial correlation measures the direct relationship between the two variables of interest. This technique is useful when we want to examine the relationship between two variables after accounting for the effect of one or more confounding variables.

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Answer:

The shorter wall is 5 feet long.

Step-by-step explanation:

This problem can be solved by visualizing the the long wall, short wall, and diagonal wall as a right triangle.

After doing so, the problem can be solved by utilizing the Pythagorean Theorem, which states that in a right triangle, the sides must be equivalent to a^2 + b^2 = c^2, with a b and c being the actual lengths of the sides of the triangle.

To begin, you would create the equation a^2 + 12^2 = 13^2 (c always indicates the hypotenuse, but a and b are interchangeable for the remaining sides).

Then, you would find the square of 12 and 13, which would be 144 and 169, respectively. Thus, a^2 + 144 = 169.

Next, you would get a^2 by itself on the left side in order to solve for it by subtracting 144 from both sides, which grants the equation a^2 = 25.

Finally, after finding the square root of both sides, you get the final answer of a = 5. Thus, the shorter wall is 5 feet long.

Answer:

  532

Step-by-step explanation:

  532 = 2·2·7·19

__

There are 24 possible 3-digit numbers from the set {2, 3, 5, 7}. Of those, 6 have four factors: 372, 375, 532, 572, 732, 735.

The sums of factors of these numbers are ...

  38, 18, 30, 28, 68, 22

The number of interest is 532.

Let's look at an example.

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

Problem:

At a high school play, tickets are sold at two different prices: student prices and parent prices. The student price is $2 while the parent prices is $3. On one night, 145 tickets were purchased and the total revenue was $335.

How many student tickets were purchased? How many parent tickets were purchased?

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

Solution:

Let x be the number of student tickets sold and y be the number of parent tickets sold.

We know that 145 people attended so x+y = 145 is the first equation we can set up. This equation is in standard form since standard form is Ax+By = C. Here we have A = 1, B = 1, C = 145.

The second equation we can form is 2x+3y = 335. This is also in standard form. This time we have A = 2, B = 3, C = 335.

The 2x is the amount of money made from just the students only. The 3y is from the parents only. The expression 2x+3y is the total from both groups. This total is set equal to 335 as this is the amount of money pulled in.

After forming both equations, we can write this system of equations

\(\begin{cases}x+y = 145\\2x+3y = 335\end{cases}\)

To solve this system, we could isolate y in the first equation to get y = -x+145. Then plug this into the second equation to solve for x

2x+3y = 335

2x+3(-x+145) = 335

2x-3x+435 = 335

-x = 335-435

-x = -100

x = 100 .... number of student tickets bought

Use this to find y

y = -x+145

y = -100+145

y = 45 .... number of parent tickets bought

We can see that x+y = 100+45 = 145

And also 2x+3y = 2*100+3*45 = 200+135 = 335

These two facts help confirm we have the correct x,y values.

New points of graph A'B'C'D' are A'(-2, -2), B'(-2, 0), C'(-4, 0), D'(-4, -1)

In graph theory, the term "translation" refers to a type of operation that moves all the vertices and edges of a graph by a fixed distance in a given direction. Specifically, a translation of a graph involves shifting every vertex a certain distance horizontally and/or vertically, without changing the shape or connectivity of the graph.

Translation: 4 left and 2 down

Start with a point at its original location and then move it 4 units to the left and 2 units down. This can be done by subtracting 4 from the x-coordinate and subtracting 2 from the y-coordinate of the point or shape.

Given points in a graph ABCD are, A(2, 0), B(2, 2), C(0, 2), D(0, 1)

Subtract 4 from the x-coordinate and subtract 2 from the y-coordinate, resulting in a new points of graph A'B'C'D' are A'(-2, -2), B'(-2, 0), C'(-4, 0), D'(-4, -1)

The figure shown in below diagram.

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Answer:

the answer is 3. but the workings are so long

Answer:

545

You can search for any mathematical expression

Step-by-step explanation:

Answer:

The answer is 545

The equation representing the total amount Emma earns at the event is y = $10x.

If the total amount Emma earns, y, is proportional to the number of bracelets, x, she sells and she earns $10 for each sold bracelet, then we can write the equation as follows:

y = kx

where k is the constant of proportionality. To find k, we can use the information that Emma earns $10 for each sold bracelet:

y = $10 * x

Therefore, the equation representing the total amount Emma earns at the event is y = $10x.

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The equation representing the total amount Emma earns at the event is y = $10x.

If the total amount Emma earns, y, is proportional to the number of bracelets, x, she sells and she earns $10 for each sold bracelet, then we can write the equation as follows:

y = kx

where k is the constant of proportionality. To find k, we can use the information that Emma earns $10 for each sold bracelet:

y = $10 * x

Therefore, the equation representing the total amount Emma earns at the event is y = $10x.

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The teacher could use a hypothesis test for a population mean in the following situation:

The teacher wants to determine if computer-based instruction has a statistically significant effect on the average test scores of students in the class. The teacher can collect a sample of test scores from students who received computer-based instruction and a sample of test scores from students who did not receive computer-based instruction. Then, the teacher can use a hypothesis test for the population mean to compare the mean test scores of the two groups and determine if the difference is statistically significant.

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Complete question:

teacher is experimenting with computer-based instruction In which situation could the teacher use a hypothesis test for a ifference in two population means?

O The teacher uses a combination of treditional methods and computer based instruction She asks students # they lked computer based instruction better She wants to determine if the maorty prete the computer-based instruction

O She gives each student a pretest Then she teaches a lesson using a computer program Afterwards, she gives each student a postest The teacher wants to see f the difference in scores willshow an improvement 。

She ran om y d des the class into t goups One gup ecerves computer based instruction The other group recen es tradit na n rete wit t copters Ahe rst eten een student ha to solve a single problem. The teachers wants to compare the proportion of each group who can solve the problem 。She gives each student a pretest he then randomly dvides the class mto two groups.

Ο e group receves compte based i struct . The other go p eceves tradtind rst cto with t computers After instruction each student takes a post test. The teacher compares the improvement in scores (post test minus pretest) in the two groups

The position of the swing changes based on how hard it is pushed. To determine which pairs of segments are congruent, let's consider the swing as a pendulum.

A pendulum swings back and forth due to the force of gravity and its initial displacement. The distance from the pivot point to the center of mass of the swing is called the radius of oscillation.

When the swing is pushed harder, it gains more energy and swings with a larger radius of oscillation. Conversely, when the swing is pushed with less force, it swings with a smaller radius of oscillation.

Since the radius of oscillation affects the swing's position, the segments that would be congruent are the segments of the swing's path at two different moments in time when the swing has the same radius of oscillation.

For example, if the swing is pushed with a moderate force, the segments of the swing's path when it reaches the highest point on each side would be congruent. Similarly, the segments when the swing is at the lowest point on each side would also be congruent.

In summary, the segments that are congruent are the segments of the swing's path at different moments in time when the swing has the same radius of oscillation.

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Answer:

Scalene, isosceles,

Step-by-step explanation:

The correct option is Ray 2.When light passes from one medium to another of different optical densities, it bends from its initial path, this bending is called refraction.

The amount of refraction is determined by the refractive index of the media. The refractive index of the media is the ratio of the speed of light in the medium to the speed of light in a vacuum. The refracted ray for ray 1 is Ray 2.The direction of light in air or vacuum will change when it enters water.

The angle of incidence of the light ray and the angle of refraction of the light ray will determine how much the direction will change. Because light moves from a medium with a lower index of refraction (air) to one with a higher index of refraction (water), the ray is bent away from the normal as it enters the water.

The incident ray 1 in air, the refracted ray 2 in water, and the normal line, are in the same plane. The angle of incidence and angle of refraction are related through Snell's law, which states that n1 sin θ1 = n2 sin θ2, where n1 and n2 are the indices of refraction in the incident and refracted media.

The refracted ray 2 will be bent towards the normal. Thus, the correct option is Ray 2.

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Answer:

142.24 centimeters

Step-by-step explanation:

To convert from inches to centimeters, you multiply the inches value by 2.54 and that will give you its equivalent in centimeters.

56 * 2.54 = 142.24

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The median should be used to describe a normal or skewed distribution, as it is a better measure of the central tendency than the mean for these types of distributions.

The median is a better measure of the central tendency than the mean when describing a normal or skewed distribution. A normal distribution is a symmetrical distribution of data in which values are evenly spread around the mean. A skewed distribution is when one side of the distribution is longer than the other, with the mean being pulled away from the center. The median is the most appropriate measure of central tendency for both normal and skewed distributions because the mean can be distorted by outliers and extremes in the data. The median is the midpoint in the data and provides a better representation of the middle of the distribution, which can be useful in interpreting the data. Using the median to describe a large distribution or percentage is not as common as it is better to use the mean or mode for these types of distributions.

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Answer:

<EFG=66

<GFH=86

Step-by-step explanation:

sol

here

<EFG=2n+16

<GFH=4n+14

we know that,

<GFH+<EFG=180°[linear pair]

or,2n+16+4n+14=180°

or,6n+30=180

or,6n=180-30

or,n=150÷6

n=25

now,

<EFG=2n+16

=2×25+16

=66

Again,

<GFH=4n+14

=4×25+14

=86

Answer:

x = 18

Step-by-step explanation:

Since BD bisects ∠ ABC , then

∠ ABD = ∠ DBC = 79°

∠ ABC = ∠ ABD + ∠ DBC , that is

9x - 4 = 79 + 79 = 158 ( add 4 to both sides )

9x = 162 ( divide both sides by 9 )

x = 18

Answer:

B

There is no friction

Step-by-step explanation:

if the object is stationary , it's not moving, no forces acting on it how can it produces friction ?

hana is 4 year older than her brother. 2 years ago, her brother’s age was ¾ of her age then brother age will be 19 years

The concept of age describes how old a person is at a particular point in time. It is defined as the measure of the time elapsed from date of live birth to a specific point in time, usually the date of collection of the data

Hana is 4 years older then her brother

let x be brother present age

and x+4 be the hana present age

2 year ago

hana was x+2

and brother was x-2

according to the question

x-2= 3/4 * ( x+2)

x= 14

after 5 years he will be 19 years

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Answer:

yes

Step-by-step explanation:

yes, they are congruent for the AAS rule ( angle angle side)

The value of the expressions are not equal

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Substituting the values in the equation , we get

p = -3²

q = ( -3 )²

On simplifying the equations , we get

The value of p = -9

The value of q = 9

So , the value of p and q are not equal

Hence , the equations are not equal

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Answer:

Samantha makes more

Step-by-step explanation:

Dillon

41.50/5 would = $8.3 an hr

Samantha

50.40/6 would =$8.4 an hr

Answer:

Samantha made more money per hour :)

D= $8.30 per hour

S= $8.40 per hour

Step-by-step explanation:

Answer: False...

Step-by-step explanation: It should be false because I see 2 x that could be added, although I don't know if the 5 after the x is supposed to be a fifth power

A game is played using one die. If the die is rolled and shows 1, the player wins $5. If the die shows any number other than 1, the player wins nothing. If there is a charge of $1 to play the game, what is the game's expected value?

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

Let random variable "x" be a count of player gain.

X-values are: 4, -1

P(x=4) = 1/6; P(x= -1) = 5/6

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

E(x) = (1/6)(4) + (5/6)(-1)

E(x) = [4-5]/6

E(x) = -1/6 = -17 cents

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

Cheers,

Answer:

if the prices at the bottom are per pound, then:

pears = 3.7604 (3.76)

apples = 1.1385 (1.13)

peaches = 2.8122 (2.81)

total bill = 7.07

Step-by-step explanation:

pears =

1.19 x 3.16 = 3.7604 (3.76)

apples =

0.99 x 1.15 = 1.1385 (1.13)

peaches =

1.29 x 2.18 = 2.8122 (2.81)

total bill =

3.76 + 1.13 + 2.81 = x

x = 7.7

7.7 money-wise = 7.07 (i think)

total bill = 7.07

OR

total bill =

3.7604 + 1.1385 + 2.8122 = x

x = 7.7111

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

7.7111 = 7.7 = 7.07