maria collects data from a random sample of 7th graders in her school and finds out 16 out 20 7th graders participate in after school activities, how many students should maria expect to participate in after school activities if 240 total 7th graders attend maria’s school?

Answer:

The post office is at (7,7)

Step-by-step explanation:

To get to the pet shop, go down 4 and left 1

Answer: (7, 7)

Step-by-step explanation:

Look at the point where the post office is. Look at the numbers below and the ones to the right. Look at the lines. There are  two lines that  lead to the location of the post office. The numbers next to the both of those lines should be 7 and 7. Which makes the ordered pair.

By solving a linear equation we will see that Junos spent 2 hours on social media.

First, we need to define the variables we will be using. let's define:

We know that, in online gaming, Juno spent two hours less than 3 times what he spent on social media, this can be written as:

y = 3*x - 2

Now we already know the value of y, y = 4.

Replacing that we get:

4 = 3*x - 2

Now we can solve this linear equation for x:

4 + 2 = 3*x

6 = 3*x

6/3 = x = 2

Juno spent 2 hours on social media.

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Answer:

Step-by-step explanation:

A cereal box has a height of 32 centimeters. It has a base with an area of 160 square centimeters.

What is the volume, in cubic centimeters, of the cereal box?

Answer:

35.355 cm

Step-by-step explanation:

if u imagine the 3D cut triangle but at a different angle, u would imagine the legnth of the parallelogram being 7.071 which is the hypotenuse of the triangle... along with the hypotenuse given, they also gave the side lenght of the parallelogram which is 5cm... 5 x 7.071 = 35.355 cm

Answer:

To find the correct selling price, we need to first find the cost of the item plus the markup. We can do this by multiplying the cost of the item by the markup percentage: $6 * 67% = $4.02. However, since the question asks us to round to the nearest dollar, we can round this number down to $4.

Therefore, the correct selling price is $4.

The manager's likely error was that they set the selling price at the cost (option C).

Step-by-step explanation:

The correct selling price is $10 and the manager set the selling price at the markup so option (A) is correct.

The percentage is defined as a given amount in every hundred. It is a fraction with 100 as the denominator percentage is represented by the one symbol %.

The percentage is also called the indicating hundredths. Thus, 2% is two-hundredth, which means 2%=2/100=0.02.

As per the given,

Cost of item = $6

Markup = 67%

67% of $6 ⇒ 0.67 x 6 = $4.02

Add the markup in the cost = $6 + $4.02 = $10.02

Round to nearest dollars = $10.2 ≈ $10.

The manager put $4 which is a markup instant of the selling price of $10.

Hence "The correct selling price is $10 and the manager set the selling price at the markup".

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Answer:

-3.334

Step-by-step explanation:

I thought you got A so this is B

I’m sorry the sign was negative I forgot it

If it really helped please give me brainliest

the wall she's using for the mural is (20.5)(10) = 205 ft², so far she has done 20% of that, well, she still has 100% - 20% = 80% to go on the next four days, so on the next four days she'll be doing 80% of 205 ft².

\(\begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{80\% of 205}}{\left( \cfrac{80}{100} \right)205}\implies 164~ft^2\)

Answer:

FG: 30

Sw: 27

Step-by-step explanation:

I came up with the same answer as dinahrosesoto

Answer: c

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

Solve everything else first. Then come back to A.

B. 1, 3, 5 and 2, 4, 6 are both consisting of 3 numbers.   Fair

C. HH=dust  TT=vacuum  HT=vacuum  TH=flip    Not fair

D. 1=dust  2=vacuum  3=dust  4, 5, 6=roll    Not fair

B is the answer

Please mark as Brainliest! :)

Have a nice day.

Answer: 1.02

Step-by-step explanation:

V=whl=0.8·3.2·0.4≈1.024

Answer: v=1.024

Step-by-step explanation: To find volume you use the formula v=l*w*h in this case l=0.4, w=0.8, and h=3.2. Multiplying those values gives you 1.024.

Part A: To calculate the measures of center, we can find the median and the mean for each school.

For Bay Side School, the median class size is the average of the 8th and 9th values when the data is sorted in ascending order. The 8th and 9th values are both 25, so the median class size is 25.

To find the mean class size for Bay Side School, we can add up all the class sizes and divide by the total number of classes. The sum of the class sizes is 12 + 12 + 12 + 14 + 15 + 15 + 16 + 16 + 18 + 18 + 20 + 20 + 23 + 25 + 25 = 243. There are 15 classes, so the mean class size is 243/15 ≈ 16.2.

For Seaside School, the median class size is the average of the 8th and 9th values when the data is sorted in ascending order. The 8th and 9th values are both 15, so the median class size is 15.

To find the mean class size for Seaside School, we can add up all the class sizes and divide by the total number of classes. The sum of the class sizes is 10 + 10 + 10 + 11 + 12 + 15 + 15 + 16 + 17 + 17Part A (continued):

18 + 18 + 20 + 20 + 25 = 222. There are 14 classes, so the mean class size is 222/14 ≈ 15.9.

Therefore, the measures of center for Bay Side School are: median = 25, mean ≈ 16.2.

The measures of center for Seaside School are: median = 15, mean ≈ 15.9.

Part B: To calculate the measures of variability, we can find the range and the interquartile range (IQR) for each school.

For Bay Side School, the range is the difference between the largest and smallest class sizes. The largest class size is 25, and the smallest class size is 12, so the range is 25 - 12 = 13.

To find the IQR for Bay Side School, we need to find the first quartile (Q1) and the third quartile (Q3) of the data. From the stem-and-leaf plot, we can see that Q1 is 15 and Q3 is 20. Therefore, the IQR is 20 - 15 = 5.

For Seaside School, the range is the difference between the largest and smallest class sizes. The largest class size is 25, and the smallest class size is 10, so the range is 25 - 10 = 15.

To find the IQRPart B (continued): for Seaside School, we need to find the first quartile (Q1) and the third quartile (Q3) of the data. From the stem-and-leaf plot, we can see that Q1 is 12 and Q3 is 18. Therefore, the IQR is 18 - 12 = 6.

Therefore, the measures of variability for Bay Side School are: range = 13, IQR = 5.

The measures of variability for Seaside School are: range = 15, IQR = 6.

Part C: If you are interested in a smaller class size, Seaside School is a better choice because its measures of center are lower than those of Bay Side School, indicating that its class sizes tend to be smaller on average. Additionally, Seaside School has a smaller range and IQR, indicating less variability in class size. Therefore, there is less chance of encountering very large classes at Seaside School compared to Bay Side School.

Answer:

16b^4-9

Step-by-step explanation:

Factoring gives us 16b^4+12b^2-12^2-9. Simplifying gives us the answer which is 16b^4-9

Answer:

\(16b^4-9\)

Step-by-step explanation:

When multiplying binomials, we can use a method called FOIL (First-Outside-Inside-Last).

For \((t_1+t_2)(t_3+t_4)\), let:

\(t_1\implies \text{First Term},\\t_2\implies \text{Second Term},\\t_3\implies \text{Third Term},\\t_4\implies \text{Fourth Term}\)

In the FOIL method, the steps go:

\(\text{\textbf{F}irst: Multiply the first and third terms (first term of each binomial)},\\\text{\textbf{O}utside: Multiply the first and fourth terms},\\\text{\textbf{I}nside: Multiply the second and third terms},\\\text{\textbf{L}ast: Multiply the second and fourth terms (last term of each binomial) }\)

Given \((4b^2+3)(4b^2-3)\), we have:

\(\text{First: }4b^2\cdot 4b^2,\\\text{Outside: }4b^2\cdot -3,\\\text{Inside: }3\cdot 4b^2,\\\text{Last: }3\cdot -3,\\\rightarrow 16b^4-12b^2+12b^2-9\)

Combine like terms:

\(\boxed{16b^4-9}\)

Answer:

Orange rectangle: 30

Pink rectangle: 48g

Product: 48g + 30

Step-by-step explanation:

We always want to distribute the factor outside the parenthesis to the terms inside:

-Chetan K

Answer:

30+48g

Step-by-step explanation:

Do 6 x 5 (30)and then 6 x 8g (48g). You can't combine them because they are not the same terms, sorry if my explanation sucks.

Answer:

Explained Below

Step-by-step explanation:

You'll want to start off by knowing the formulas for the area and perimeter of triangles:

Area Formula - A= 1/2 bh (1/2 x base x height)

Perimeter Formula - P = a + b + c (sides added together)

So, we will plug in the numbers.

Triangle 1: A = 1/2 bh So, A = 1/2 8 x 10, which means half of 8 or 10 multiplied by the number that you did not half. (For instance: If you half 8, that means you multiply 4 and 10.) Now, you should have A = 40 either way (4 x 10 = 40 and 8 x 5 = 40).

P = a + b + c. So, you will add 8, 6, and 10. This is 14.

Triangle 2: A = 1/2 bh. But, this triangle requires you to cut in half. Doing this, that cuts your base as well. It will no longer be 30, by 15. For the left side of triangle 2, it will be A = 1/2 15 x 12, which you half either 15 or 12, where 12 is easier. Now it should be A = 15 x 6, which is 90. The right side of the triangle will be A = 1/2 15 (12) as well, which is also 90. In the end, you will add it together, which is 180.

P = a + b + c. So, you will add 15, 23, and 12 first. Then, add 15, 20, and 12. You should have 50 and 47, which you will add that together as well.

Triangle 3: I will keep working on this one, as I am a little unsure :/

Triangle 4: You will do the same steps for this triangle like you did on #2. Though the numbers you plug on are different. A = 1/2 bh - A = 1/2 10 x 14. (This is for the left side) You will have to half either the base or the height's number. So, it will be A= 5 x 14 or A=10 x 7. Then, you will multiply and find your answer (70). (This is for the right side) A = 1/2 10 x 14. Due to the numbers being the same, it can be shown that the area will also be 70. You then add 70 and 70 together.

P = a + b + c. You will add 10, 14, and 15 for the left side and 10, 14, and 17 for the right side. Once you add them separately, add the answers together (10+14+15 =39 and 10+14+17 = 41. 39 + 41 = 80.

Triangle 5: A=1/2 bh. A = 1/2 12 x 16. You will half either 12 or 16 (It does not matter). Then you should have A = 6 x 16 or A = 12 x 8. Either way, your answer is 96.

P = a + b + c. You will add 12, 16, and 18. This results in 46.

Hope this helps! I will continue to figure out Triangle 3

Answer:

x= 10

Step-by-step explanation:

\(\frac{-2-2x}{3} =-8\\-2-2x=-24\\-2x= -24+2\\-2x=-20\\x=10\)

slope formula

(y2-y1) / (x2-x1)

(9-2) / (3-2) = 7

slope 7

point (2,2)

y - y1 = m(x - x1)

y = m(x-x1)+y1

y = 7(x-2) + 2

Answer:

f(t) = 160t,

d = f(t)

The function that relates the distance traveled d to the time t is:

f(t) = 160t, where d = f(t)

Step-by-step explanation:

If the train travels 480 kilometers in 3 hours, then it will travel 160 kilometers in one hour:

d = 160t

Now we replace d by f(t) because d = f(t):

f(t) = 160t

for any given value of t, d will be equal to t multiplied 160 times

Answer:

37

Step-by-step explanation:

Answer:

Step-by-step explanation:

so first you multiply the radius times 3.5785738473847 which will give you 666 im in your walls  

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The Volume of cylinder are as given elbow:

1. 117 in³

2. 21.195 in³

3. 28.26 in³

4. 42.39 in³

5. 50.24 in³

6. 75.36 in³

To calculate the volume of each can, we can use the formula for the volume of a cylinder:

Volume =πr²h

Using the given values, we can calculate the volume for each option:

Option 1:

Radius = 2.5 inches

Height = 6 inches

Volume = 3.14 x (2.5²) x 6 = 117 in³

Option 2:

Radius = 1.5 inches

Height = 3 inches

Volume = 3.14 x 1.5² x 3 = 21.195 in³

Option 3:

Radius = 2 inches

Height = 2.25 inches

Volume = 3.14 x 2² x 2.25 = 28.26 in³

Option 4:

Radius = 1.5 inches

Height = 6 inches

Volume = 3.14 x 1.5² x 6 =42.39 in³

Option 5:

Radius = 2 inches

Height = 4 inches

Volume = 3.14 x 2² x 4 = 50.24 in³

Option 6:

Radius = 2 inches

Height = 6 inches

Volume = 3.14 x 2² x 6 = 75.36 in³

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Answer:

u have to add 1.5 from both sides to cancel it out on the left, so it becomes 0. then on the right side u dont add a negative 1.5 because it would change your answer. the correct answer is k=9.7 because you add 8.2 and 1.5 which equals 9.7. you divide by k, in which case is 1 so it would still be k=9.7. hope this helps:)

Step-by-step explanation:

Answer: square root of 89 units i think so

Step-by-step explanation:

The distance between the points (−2, −4) and (−7, −12) is √89 units.

Among the given options, the correct answer is "square root of 89 units."

To determine the distance between the points (−2, −4) and (−7, −12), we can use the distance formula. The distance formula calculates the distance between two points (x₁, y₁) and (x₂, y₂) in a Cartesian coordinate system.

The distance formula is given by:

d = √((x₂ - x₁)² + (y₂ - y₁)²)

Let's substitute the coordinates of the given points into the formula:

d = √((-7 - (-2))² + (-12 - (-4))²)

= √((-7 + 2)² + (-12 + 4)²)

= √((-5)² + (-8)²)

= √(25 + 64)

= √89

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