need help in pre algebra plz

Answer:

The answer will be D. 181

Step-by-step explanation:

603 - 422 = 181

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The weight of the third heaviest among the four dogs is 2 kg.

An equation is an expression that shows the relationship between two or more numbers and variables.

The 4 dogs weight is 60 kg with each dog weight been different. The second heaviest dog weighs 28 kg.

Let the heaviest dog be 29 kg, the third heaviest be 2 kg and the fourth be 1 kg.

29 + 28 + 2 + 1 = 60 kg

The weight of the third heaviest among the four dogs is 2 kg.

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Answer:

9

Step-by-step explanation:

3x^2 + 3x - 9

Substitute x = 2 into the equation.

3(2)^2 + 3(2) - 9

3(4) + 6 - 9

12 + 6 - 9

18 - 9 =

9

For the linear function built from the scatter plot, it is found that:

The slope-intercept representation of a linear function is the rule presented as follows:

y = mx + b

The coefficients of the function and their meaning are listed as follows:

From the graph, we have that when x = 0, y = 500, hence the intercept of the line is:

b = 500.

When the input increases by 200, the output increases by 1000, hence the slope is:

m = 1000/2 = 5.

Thus the equation is:

y = 5x + 500.

The graph is given by the image at the end of the answer.

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Answer:

Part A:

To find the percentage of survey respondents who liked neither hamburgers nor burritos, we need to calculate the frequency in the "Does not like hamburgers" and "Does not like burritos" categories.

Frequency of "Does not like hamburgers" = Total in "Does not like hamburgers" category = 135

Frequency of "Does not like burritos" = Total in "Does not like burritos" category = 54

Total respondents who liked neither hamburgers nor burritos = Frequency of "Does not like hamburgers" + Frequency of "Does not like burritos" = 135 + 54 = 189

Percentage of survey respondents who liked neither hamburgers nor burritos = (Total respondents who liked neither hamburgers nor burritos / Total respondents) x 100

Percentage = (189 / 205) x 100 = 92.2%

Therefore, 92.2% of the survey respondents liked neither hamburgers nor burritos.

Part B:

To find the marginal relative frequency of all customers who like hamburgers, we need to divide the frequency of "Likes hamburgers" by the total number of respondents.

Frequency of "Likes hamburgers" = 110 (given)

Total respondents = 205 (given)

Marginal relative frequency = Frequency of "Likes hamburgers" / Total respondents

Marginal relative frequency = 110 / 205 ≈ 0.5366 or 53.66%

Therefore, the marginal relative frequency of all customers who like hamburgers is approximately 53.66%.

Part C:

To determine if there is an association between liking burritos and liking hamburgers, we can compare the joint and marginal frequencies.

Joint frequency of "Likes hamburgers" and "Likes burritos" = 29 (given)

Marginal frequency of "Likes hamburgers" = 110 (given)

Marginal frequency of "Likes burritos" = 70 (calculated by adding the frequency of "Likes burritos" in the table)

To assess the association, we compare the ratio of the joint frequency to the product of the marginal frequencies:

Ratio = Joint frequency / (Marginal frequency of "Likes hamburgers" x Marginal frequency of "Likes burritos")

Ratio = 29 / (110 x 70)

Ratio ≈ 0.037 (rounded to three decimal places)

Answer:

2/3

Step-by-step explanation:

1 and 2 are taken away, therefore you have 3, 4, 5, and 6 left as options to roll. So the answer is 4/6 since there's 4 numbers, but simplified it's 2/3.

Answer:

There are six possible outcomes when rolling a die, each of which is equally likely. Of these six outcomes, three are greater than 2 (3, 4, 5) and three are not (1, 2, 6). Therefore, the odds in favor of rolling a number greater than 2 are 3 to 3, or simply 1 to 1. Alternatively, we could express this as a probability: the probability of rolling a number greater than 2 is 3/6, or 1/2, since there are three favorable outcomes out of a total of six possible outcomes.

Step-by-step explanation:

The data modelling function is Price required to recoup printing expenses is equal to 0.1 * (numbers of yearbooks sold) + 45.

A yearbook is a collection of images and text that is issued by an organisation once a year to remember and highlight the happenings at a particular school during the previous academic year. Yearbooks were used in elementary, middle, high, and college and university settings throughout the 20th century.

Using the information in the table,

\(n = 5\)

Σ\(x = 1175\)

Σ\(y = 145\)

Σ\((xy) = 41000\)

Σ\((x^2) = 287500\)

When these values are inserted into the formula,

\(m = (541000 - 1175145) / (5*287500 - 1175^2)\)

\(= -0.1\)

Therefore, the slope of the linear function is \(-0.1\).

\(b = y - mx\)

where we can use any of the data points. Let's use\((250, 20)\)

\(b = 20 - (-0.1*250)\)

\(= 45\)

Therefore, the y-intercept of the linear function is \(45\).

\(y = -0.1x + 45\)

Therefore,

Price needed to cover the costs of printing \(= -0.1*\)(number of yearbooks sold) \(+ 45\).

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The number rounded to the nearest ten will be 1640. The number is grater than the 5 on the scale.

If the digit in the units place is between 0  and 10 i.e., 5, then the unit digit is substituted by 0.

If the digit in the units place is between 5 and 9, that is, > or 5 but less than 10, the units place is replaced by '0,' and the tens place is incremented by 1.

The given number is;

x=1637.984

The number is 7.9 grater than 5. So that the number is rounded to the nearest whole number,i.e.1640

Hence,the number rounded to the nearest ten will be 1640.

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The expression of "The difference of -10 and the product of p and q" in algebraic notation is pq + 10

From the question, we have the following parameters that can be used in our computation:

The difference of -10 and the product of p and q

The numbers are given as

p and q

The product of p and q means pq

So, we have the following

The difference of -10 and pq

The difference of -10 and pq means

pq + 10

Hence, the expression is pq + 10

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Answer:

Step-by-step explanation:

P = J - 15

       P + J = 55

(J - 15) + J = 55

           2J = 40

             J = 20 years

Answer:

angle ced is a right ange

so the m angels debate =135 m angle aeb =35

so the answer is 135+35 =170

180 is a all side sim

=180-170=10 answer

Answer:

∠CED is a right angle.

∠CEA is a right angle.

m∠CEB = m∠BEA

m∠DEB = 135°

The selling price of the item at 10% marlkup is $55

From the question, we have the following parameters that can be used in our computation:

Using the above as a guide, we have the following:

Selling price = Cost To Store * (1 + Markup)

substitute the known values in the above equation, so, we have the following representation

Selling price = 50 * (1 + 10%)

Evaluate

Selling price = 55

Hence the selling price of the item is $55

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There are 24 question in the picture. We have to solve the problem by multiplication and division.

Given that,

There are 24 question in the picture.

We have to find the multiplication and division for the given question.

Multiplication condition:

Plus multiply minus is equal to minus

Plus multiply plus is equal to plus

Minus multiply minus is equal to plus

Minus multiply plus is equal to minus

Division condition:

Plus divided by minus is minus

Plus divided by plus is plus

Minus divided by minus is plus

Minus divided by plus is minus

1. -2×5= -10

2. -16÷-8= 2

3. 60÷-5= -12

4. 11×-1= -11

5. 18÷-2= -9

6. 28÷-4= -7

7. 7×-8= -56

8. -8×11= -88

9. -70×-3= 210

10. -60÷-2= 30

11. 8×-90= -720

12. -80÷40= -2

13. 300÷-6= -50

14. -80×50= -4000

15. -200÷40= -5

16. -70×-60= 4200

17. -3×2= -6

18. -16÷-4= 4

19. 5×-6= -30

20. 12÷-3= -4

21. -18÷6= -3

22. 7×9= 63

23. -60÷-6= 10

24. -8×-5= 40

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Answer:

500

Step-by-step explanation:

54%=0.54

0.54x=270

x=270/0.54

x=500

Answer : 500

Whole : ?

Part : 270

Percentage : 54

100 : 100

How to find the Whole of a Part . . . Part x 100 / Percent

270 x 100 = 27,000 / 54 = 500

270 is 54% of 500

The sine function of the given features is F(x) = 4sin(x-3)

From the question, we have the following parameters that can be used in our computation:

F(x) = +-Atimessin(b(x+C)) + D

This means that

F(x) = Asin(b(x+C)) + D

Where

A = amplitude

been shifted to the right 3 units and has and amplitude of 4 means

A = 4 and C = -3

So, we have

F(x) = 4sin(x-3)

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Answer:

Step-by-step explanation:

This means the point travled to -5 on the x axis, then went down to -5 on the y axis, and then went +5 along the z axis

ANSWER

EXPLANATION

Nancy has $100.

The charges are:

=> $5 admission per person. She has x cousins and herself to pay for, this means that she pays $5 for (x + 1) persons.

The admission charge is therefore:

$5 * (x + 1) = $5(x + 1)

=> $3 per ticket for rides. The number of rides she can pay for is y. So the charge for rides is:

$3 * y = $3y

Since she only has $100, everything she pays for can only be less than $100 or equal to $100.

This means that, if we add all the charges, they must be either less than or equal to $100.

That is:

That is Option C.

The unemployment rate is 6.7%.

The correct option is B.

The following formula is a general strategy for calculating percentages.

Finds the total amount of what you are searching for as a percentage. ...

Divide the number to get the percentage.

Multiply the value by 100. In mathematics, a percentage is a number or ratio expressed as a fraction of 100. Often indicated by the percent sign "%", the abbreviations "pct.", "Pct", and in some cases, "pc" is also used. Percentages are dimensionless.

There is no measurement unit. Multiply the number of integers by the decimal number that corresponds to the percentage. The result is the percentage of shares.

explanation;

total people =90

unemployment = 6

percentage = 6*100/90

                     6.7%.

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Answer:

the answer is 022,500

Step-by-step explanation:

hope this helps

Answer:

0.87

Step-by-step explanation:

After decreasing new value would be : 100%  - 13% = 87%

87 % = 87/100 = 0.87

Answer:

\(\boxed{\frac{x^2 }{8} }\)

Step-by-step explanation:

The quotient is the result from division.

Let x be that number.

Division between x² and 8.

\(\frac{x^2 }{8}\)

The algebraic expression representing the quotient of a number squared and eight is x²/8.

An algebraic expression is a combination of terms formed using mathematical operators (+, -, *, /). The terms are made by the combination of variables and constants.

In the question, we are asked to write an algebraic expression that represents the quotient of a number squared and eight.

We know that an algebraic expression constitutes both variables and constants.

We assume the number in the expression to be x.

The number squared is then represented by x².

The quotient of the number squared and eight can be represented as x²/8.

Therefore, the algebraic expression representing the quotient of a number squared and eight is x²/8.

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The equation of a line in slope-intercept form is expressed as:

where:

• m is the ,slope

• b is the ,y-intercept

From the graph, the y-intercept is the point where the line crosses the y-axis. The y-intercept is (0, -3)

Determine the slope using the coordinate point (0, -3) and (4, -2) on the line

Substitute the slope and y-intercept into the equation to have:

Hence the equation of the line in slope-intercept form is y = 1/4 x - 3

Answer:

Step-by-step explanation:

A: 2754

B: 4 dollars remaining

Have a good day!

answer: the range is 41.

to find the range of this data set, we first need to find the minimum and maximum values - which are 59 and 100.

then we subtract the minimum from the maximum.

59 - 100 = 41.

The set of points that lies on the graph of the function is A, {(0, 0), (-1, -1), and (1, 1)}.

This can be verified by plugging the points into the equation y = x. When x = 0, y = 0. When x = -1, y = -1. Finally, when x = 1, y = 1. Therefore, all three points lie on the graph.

To verify this further, we can calculate the slope of the line using two points. The slope of the line is calculated by taking the difference in the y-values and dividing by the difference in the x-values. For example, to calculate the slope between the points (0, 0) and (-1, -1), we take the difference in the y-values (-1 - 0) and divide it by the difference in the x-values (-1 - 0). This results in the slope being -1. Since the slope is -1, this means that the points are lying on the graph of the function  y = x.

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Answer:

The set of points that lies on the graph of the function is A, {(0, 0), (-1, -1), and (1, 1)}.

This can be verified by plugging the points into the equation y = x. When x = 0, y = 0. When x = -1, y = -1. Finally, when x = 1, y = 1. Therefore, all three points lie on the graph.

To verify this further, we can calculate the slope of the line using two points. The slope of the line is calculated by taking the difference in the y-values and dividing by the difference in the x-values. For example, to calculate the slope between the points (0, 0) and (-1, -1), we take the difference in the y-values (-1 - 0) and divide it by the difference in the x-values (-1 - 0). This results in the slope being -1. Since the slope is -1, this means that the points are lying on the graph of the function  y = x.

Step-by-step explanation:

Answer:

f(x)=1/2x+4.

Step-by-step explanation:

Answer for the question:

It is B.

Answer:

11/10

Step-by-step explanation:

divide both the terms of 55 & 50 with 5: like this ⬇️

put it in the fraction form: ⬇️

I hope this information helps.

Answer:

\(3(x-2)=2x+10\\3x-6=2x+10 | +6\\3x=2x+16 | -2x\\x = 16\)

30.

a) \(180^{0} - 134^0-22^0=24^0\)

\(r=24^0\)

b)

\(90^0=2x^0+3x^0\\90^0=5x^0 |:5\\x^0=18^0\)

\(2x^0= 2* 18^0=36^0\)

\(3x^0=3*18^0=54^0\)

Take care!