Mathematics Middle School

Please help me with this make sure to do everything it’s asking because I have no clue how to do this please look at the image to know what you are doing I need question 2 and 3 done for this work sheet if you can please attach a picture of how you did this

Answers

Answer 1

Answer:

2b. 3(2-x)

2c. add the 5x-10

5(x-2)

3.its suppose to be 12x+3=3(4x+1)

3(4x+1)=12x+3

Step-by-step explanation:

Related Questions

1 1/4 - 1/3 = 15/24 - ??

Answers

Answer

It is 11/12

hope im not late i hope it helps

Step-by-step explanation:

In a survey of 550 P people like taste like 62% like tasty Pizza estimate how many people like tasty Pizza

Answers

341 people

550 x 0.62 = 341

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

Please help and you get a cake

Answers

Answer:

Mean = 33.7

Median = 34.5

Mode = 34

Range = 33

After adding 26....

mean decreases by 0.7

median decreases by 0.5

mode is 34

range is 33

Step-by-step explanation:

mean = sum of all the data values/number of data values

= (18 + 19 + 20 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/10
= 337/10
= 33.7

To find median arrange the values in increasing order, find the mid value

If the number of data points is even, find the average of the mid 2 data values

Arranging data values we get:
18, 19, 20, 34, 34, 35, 37, 42, 47, 51

Since there are 10 data values, take the average of the middle two:
(34 + 35)/2 = 34.5

The mode is the value that occurs most often. We see that there are two instances of 34 whereas the other values appear only once

Mode = 34

The range is highest - lowest = 51 - 18 = 33

After we add 26, we get the following data set arranged

18, 19, 20, 26, 34, 34, 35, 37, 42, 47, 51

we can calculate the stats using the same technique as above

We get the following values

mean = )(18 + 19 + 20 + 26 + 34 + 34 + 35 + 37 + 42 + 47 + 51)/11
= 33

median = 34

mode = 34

range = 51-18 = 33

To find the decrease in mean and median subtract from the first set of values

im pretty sure the answer is 56 because i said so

PLSSSSS ANSWER QUICKLY PLSSSS!!!!!

Answers

ANSWER

its the second one

LOG $( x^{2} -2X(X-1)\\X-1^{2}$

Step-by-step explanation:

Answer: BExplanation:I've already learned this and I'm very VERY good at this stuff.

Please show me how u get the work ty so much

Answers

Answer:

Step-by-step explanation:

Sum means addition

5 times a number (a number is the variable)

and is also addition

so five times a number plus 2

and the answer is 80

Which scenario can be modeled by the linear function
y = -15x + 500?

A. The temperature on Jupiter is
15℉ and increases by 500℉ every day.

B. There is a population of 500 giraffes in Western Africa that decreases by 15 giraffes each year.

C. A carpet cleaning service charges $500 plus an additional $15 for every hour.

D. A membership fee for a movie streaming service is free, but each rental costs $15.

Answers

I think the answer is C

The answer is a because it is able to be modeled unlike the rest

A grocery store received two shipments of watermelon. Each watermelon in a shipment was weighed, then a line plot was made of all of the weights in a shipment.

What statement about the two plots’ distributions is true?

The degree of overlap between the two distributions is high.

There is no overlap between the two distributions.

The degree of overlap between the two distributions is low.

The degree of overlap between the two distributions is moderate.

Two line plots with the same scale and interval, from fifteen to twenty-five, with tick marks every one unit. The plots are stacked vertically for comparison. Values appear as x marks above the line. Each plot has eighteen data values. Upper plot is labeled Shipment 1.

Lower plot is labeled Shipment 2. Under each plot is the label Weight, in pounds. Upper plot data values are one x mark above sixteen, one x mark above seventeen, one x mark above eighteen, one x mark above nineteen, two x marks above twenty, three x marks above twenty-one, four x marks above twenty-two, three x marks above twenty-three, three x marks above twenty-four, and one x mark above twenty-five. Lower plot data values are one x mark above sixteen, two x marks above seventeen, three x marks above eighteen, four x marks above nineteen, three x marks above twenty, three x marks above twenty-one, two x marks above twenty-two, zero x mark above twenty-three, and one x mark above twenty-four.

Answers

Answer:I have no idea

Step-by-step explanation:

Please help! I will give brainliest!

Answers

Answer:

Step-by-step explanation:

trust me brother

subtracting a negative number is the same as adding the number

it’s A because a negative and negative makes a positive with makes it +

Chad is filling a large bucket that is 15 inches deep. He notices that it takes two minutes to fill the bucket with three inches of water. He estimates it will take eight more minutes for the water to reach the top of the bucket if it continues t the same rate. Is he correct?

Answers

Answer:

No it would take approximately 10 minutes

Step-by-step explanation:

If it takes 2 minutes to fill 3 inches and 15 has 5 3's in it then you would multiply 2 by 5 and you would get 10.

No, it will take almost 10 minutes.

Please helpp!! Ty ty!♡♡

Answers

Answer:

Step-by-step explanation:

4a +12 -2c + c

4( ) + 12 - 2( ) + ( )

4(4) + 12 - 2(3) + 3

16 + 12 - 6 + 3

28 - 6 + 3

22 + 3

Helping in the name of Jesus.

Answer: 25

Therefore, 4a + 12 - 2c + c = 25

Step-by-step explanation:

a = 4

c = 3

Swap letters for numbers:

4a + 12 - 2c + c

(4)(4) + 12 - (2)(3) + 3

16 + 12 - (2)(3) + 3

28 - (2)(3) + 3

28 - 6 + 3

22 + 3 = 25

Draw a conclusion:

Hence your answer is:

4a + 12 - 2c + c = 25

I hope this helps!

A rectangular prism is 2 inches by 4 inches by 6 inches.

Kimaya says, “It takes more 2/5-inch cubes to fill the prism than 1/5-inch cubes.”

Do you agree with Kimaya? Explain or show your reasoning.

Answers

No, I do not agree with Kimaya. The volume of the rectangular prism is 2 inches x 4 inches x 6 inches = 48 cubic inches. To fill the rectangular prism with 2/5-inch cubes, you would need 48 cubic inches / (2/5) cubic inches per cube = 120 cubes. To fill the rectangular prism with 1/5-inch cubes, you would need 48 cubic inches / (1/5) cubic inches per cube = 240 cubes.

So, it takes less 2/5-inch cubes to fill the prism than 1/5-inch cubes.

Another way to think of it is that the larger the cubes, the less number of cubes you need to fill the same volume, as the cubes are larger in size.

No, I do not agree with Kimaya, and heres why.

Simple Explanation: 2/5 in. cubes are more than 1/5 in. cubes, so 1/5 in. cubes would take 2x more to fill than 2/5 in.

Complex Explanation: 2 in. x 4 in. x 6 in. is 48 cubic in. and to fill 48 cubic in. using 2/5 in. per cube, it would be 120. as for 1/5 in., to fill 48 cubic in. with that would be 240. Easier way to think of it is that 2/5 in. cubes are already 120 and 1/5 would be doubling that so all you gotta do is multipy 120 x 2 since filling it with 1/5 would be 2x the amount than 2/5.

Hope this helped :D

hey can you help thanks due in 22 min

Answers

Answer: 1.25 or 1 1/4 pts

Answer:

The answer is 1.25 or 1 1/4 as a mixed faction.

A click beetle abruptly releases elastic energy stored in its body to launch itself into the air. The function h(t)=−16t^2+8t represents the height h (in feet) of the click beetle t seconds after launching. The height of a second click beetle t seconds after launching is shown in the graph. Which click beetle went higher?

Answers

Answer:

The first click beetle went higher.

Step-by-step explanation:

The vertex is the minimum point of a parabola that opens upwards, or the maximum point of a parabola that opens downwards.

Since the height of each of the beetles at time, t seconds, is modelled as a parabola that opens downwards, the maximum height of each beetle is the y-value of the vertex.

First Click Beetle

The function representing the height, h, of the first beetle is:

$h(t)=-16t^2+8t$

We could complete the square to rewrite the function in vertex form, however the quickest way to find the vertex of a quadratic function in the form ax² + bx + c is to use the formula for the x-value of the vertex:

$\boxed{x_{\sf vertex}=-\dfrac{b}{2a}}$

Comparing ax² + bx + c with the given function:

a = -16b = 8c = 0

Therefore, substituting the values of a and b into the formula, the x-value of the vertex of h(t) is:

$x_{\sf vertex}=-\dfrac{8}{2(-16)}=0.25$

To find the y-value of the vertex, and thus the maximum height of the first beetle, simply substitute t = 0.25 into function h(t):

$\begin{aligned}\implies h(0.25)&=-16(0.25)^2+8(0.25)\\&=-16(0.0625)+2\\&=-1+2\\&=1\end{aligned}$

Therefore, the maximum height of the first beetle is 1 foot.

Second Click Beetle

From inspection of the given graph modelling the height of the second beetle, we can see that the maximum y-value is approximately 0.76 feet.

Conclusion

As the height of the second click beetle is less than the maximum height of the first click beetle, the first beetle went higher.

The telephone company offers two billing plans for local calls. Plan 1 charges $29 per month for unlimited calls and Plan 2 charges $16 per month plus $0.04 per call

Answers

i really don’t know the answer good luck

Honestly plan two is better because if you get 100 calls a month it’ll be $4 and 16+4 =20 which is lesser than $29 per month

heeeeeeeeeeeeeeeeeeeeelp

Answers

Answer:

Measure of $ \angle $V = 70°

Step-by-step explanation:

According to the question,

$ \angle $ R = 47°

$ \angle $ Q = 63°

The sum of all the three interior angles of a triangle is 180°.

$ \therefore $

$ \angle $Q + $ \angle $R + $ \angle $S = 180°

63° + 47° + $ \angle $S = 180°

$ \angle $S = 180° - 110°

$ \angle $S = 70°

∆QRS ~ ∆TUV

So,

$ \angle $S = $ \angle $V

$ \angle $V = 70°

Answer:

The 1st one is the answer: 70 degrees

Step-by-step explanation:

Use the best-fit line below to predict the value of y when x = 7

Answers

Answer:

the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis

The answer to the question is 6

A scale of a map indicates that “1 inch equals 55 miles”. How many miles does 8 inches represent?

Answers

440 because you multiply 8 x 55

440. you would just multiply 8 x 55

Solve for N: 8th grade KA math problem. Correct answers only, have a great day
(This problem contains variables and exponents)

Answers

Answer:

n = 5

Step-by-step explanation:

1) Use power rule: $(x^a)^b=x^{ab}$.

$z^{2n}=z^{10}$

2) Cancel the base of z on both sides.

2n = 10

3) Divide both sides by 2.

$n=\frac{10}{2}$

4) Simplify $\frac{10}{2}$ to 5.

n = 5

the answer to the question is n=5

Viet, quinn, and lucy are going to play bingo B 1-15, I-16-30, N-31-45, G-46-60, O-61-75.
Lucy makes a probability model to determine whether the first number drawn will be even or odd. Compare the different probabilities.

Answers

according to my understanding it will be odd because there are more odd numbers than even numbers in 1-15

15/1
15

Answer:odd. I don't know if I'm right though.

Step-by-step explanation:

I think it's odd as it be -15 which is odd.

I really hope this helps.

(PLEASE GIVE THE CORRECT ANSWER THIS IS DUE RN <33)

13. (05.06 LC)
The net of a solid figure is shown below:

Which calculation will give the total surface area of the solid figure? (1 point)

A. 6 × 4 × 4 square inches

B. 4 × 6 × 6 square inches

C. 6 × 4 × 4 × 4 square inches

D. 4 × 6 × 6 × 6 square inches

Answers

I USED WRONG ACCOUNT GIVE TO OTHER ANSWER

Answer:

Step-by-step explanation:

Surface area is the area of 1 side of the cube multiplied by the amount of sides so 4x4x6 is the right answer

Answer:

Step-by-step explanation:

Surface area is the area of 1 side of the cube multiplied by the amount of sides so 4x4x6 is the right answer

This is correct account SRRY

Edit:6x4x4

PLEASE HELP ME, LOOK AT THE PICTURE

no wrong answers please :(

Answers

Answer: 1/9

Step-by-step explanation:

There are 3 possibilities of it landing on 7 (greater than 6), is 1/3 alone. Then adding on landing on 5, right after, you have 1/9.

1/9 I think I did not say certain

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

Your friend asks you to make friendship bracelets and will give you 6
nickels for the first bracelet. You agree to help if she multiplies your payment by 6
for each bracelet completed. After 2
bracelets, you will receive 36
nickels, and after 3
bracelets, you will receive 216
nickels.

Complete and solve the equation that finds the number of nickels she will pay you after making the 8th
bracelet.

Answers

Answer:

$6^{n}$;1679616

Step-by-step explanation:

For n=1, The result equals 6

Now, For n=2, the result is 36 so its:

an=$6^{n}$

Therefore, The 8th bracelet is $6^{8}$=1679616

Hope this will help.

The answer is $1,679,616.

You get this answer by raising the 6 to the 8th power because your multiplying 6 by itself 8 times so 6^8 is just:
6 x 6 x 6 x 6 x 6 x6 x 6 x 6.

Hope this helps! (I’m not very good at explaining sorry!!)

2,000,000 ÷ 152 x 12 - 10,000 = ?

Answers

Answer:

147894.736842

1568947.3684210526 is the answer

I need help, please quickly

Answers

Answer: The ratio is 18:3

Step-by-step explanation:

Answer: 6 to 1

Step-by-step explanation:

A ratio refers to a fraction. In this case the question asks how many players to coaches there are.

The word "to" means that is where the fraction bar goes.

Players/Coaches

There are 18 players and 3 coaches.

18/3

18 can be divided by 3, 6 times so the fraction can be simplified to

6/1 meaning there are 6 players for every coach.

i need help please help please and friend me

Answers

Complimentary, Non Coordinatry

1) complimentary angles
2) non coordinatry angles

1,400 divided by 700

Answers

Answer:

Step-by-step explanation:

Answer:

Step-by-step explanation:

hope this helps!

HELP ME PLSSS I WILL GIVE BRAINLIEST

Answers

$\sf\purple{8}$ ✅

Step-by-step explanation:

$( {2})^{2} \times \frac{6}{3} \\ = 2 \times 2 \times 2 \\ = 8$

$\circ \: \: { \underline{ \boxed{ \sf{ \color{green}{Happy\:learning.}}}}}∘$

Order of operations is BODMAS
Bracket
Of
Division
Multiplication
Addition
Subtraction

2^2 x (6/3)

= 2^2 x (2)

= 4 x 2

= 8

Dave buys 18 bunches of bananas for $9 for the after school program. Determine how much Patrick will pay for 8 bunches of bananas. Use at least 2 ways to show your answer.

Answers

The answer is 4

You would divide $9 by 18 to get the price of each bunch. Then you would multiply that number by 8 to get the amount for 8 bunches.
$9 divided by 18 is $0.50. $0.50x8= 4

Other Questions