what is -2x + 12 divided by 4

Answer

The missing value is 4/9

Answer:

b

Step-by-step explanation:

i did it in my head

Answer:

yellow is 16% and purple is 20%

Step-by-step explanation:

There are 15,504 different committees that can be chosen from the 20-member student council to form a committee of 15 students.

To calculate the number of different committees that can be chosen from a 20-member student council to form a committee of 15 students, we can use the combination formula.

The number of combinations of selecting 'r' items from a set of 'n' items is given by the formula:

C(n, r) = n! / (r!(n - r)!)

In this case, we want to select 15 students from a pool of 20 members, so the formula becomes:

C(20, 15) = 20! / (15!(20 - 15)!)

Calculating this value:

C(20, 15) = 20! / (15! * 5!)

The factorial notation represents the product of all positive integers up to a given number. Evaluating the factorials:

20! = 20 * 19 * 18 * 17 * 16 * 15!

15! = 15 * 14 * 13 * 12 * 11 * 10 * 9 * 8 * 7 * 6 * 5!

By canceling out common factors:

C(20, 15) = (20 * 19 * 18 * 17 * 16) / (5 * 4 * 3 * 2 * 1)

Simplifying:

C(20, 15) = 15,504

To learn more about committee here:

https://brainly.com/question/29142774

#SPJ4

Answer:

9

Step-by-step explanation:

Step 1: Setup

First of all, note that 6 is the same as 6/1 since 6 divided by 1 is 6. Therefore, start by setting up the problem like this:

6/1

 x    

3/2

Step 2: Multiply

Multiply the numerators together (6 x 3 = 18) and multiply the denominators together (1 x 2 = 2) and make it into one fraction like so:

18/2

Step 3: Minimize

The greatest common factor of 18 and 2 is 2. Minimize the fraction by dividing the numerator and the denominator by its greatest common factor to get:

9/1

Step 4: Convert

Convert the improper fraction above to a whole number to get the answer:

9

That's it! Now you know how to calculate 6 times 3/2.

The answer is 4

Step by step explanation:

6 ÷ 3 = 4

2

To expand by three halves is to become 1.5 times what it was.

Answer:

To find the confidence interval for the mean weight of all baby Orca whales, we can use the following formula:

Confidence interval = estimate ± (critical value) × (standard error)

where:

estimate = sample mean

critical value = the value from the t-distribution that corresponds to our desired confidence level and degrees of freedom

standard error = standard deviation of the sample divided by the square root of the sample size

First, we need to calculate the sample mean and standard deviation:

Sample mean:

x = (425 + 454 + 380 + 405 + 395) / 5 = 411.8 pounds

Sample standard deviation:

s = sqrt(((425 - 411.8)^2 + (454 - 411.8)^2 + (380 - 411.8)^2 + (405 - 411.8)^2 + (395 - 411.8)^2) / 4) = 28.6 pounds

Next, we need to find the critical value from the t-distribution with degrees of freedom (n - 1) and our desired confidence level of 98%. With a sample size of 5, our degrees of freedom is 4. Using a t-table or a calculator, we find the critical value to be 3.747.

Finally, we can calculate the confidence interval:

Confidence interval = 411.8 ± 3.747 × (28.6 / sqrt(5)) = 411.8 ± 45.1

Rounded to the nearest tenth of a pound, the confidence interval is:

Confidence interval = 411.8 ± 45.1 = [366.7, 456.9]

Therefore, we can say with 98% confidence that the true mean weight of all baby Orca whales is between 366.7 and 456.9 pounds

The equation 3x+2y=14 can be written as in the slope-intercept form is y = (-3/2)x + 7.

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

It is given that:

The equation of the line is:

3x + 2y = 14

The slope-intercept form is:

y = mx + c

Here m is the slope of the line and c is the y-intercept.

After arranging:

2y = -3x + 14

y = (-3/2)x + 7

Thus, the equation 3x+2y=14 can be written as in the slope-intercept form is y = (-3/2)x + 7.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

a) Monthly instalments = $141.90, calculated using the present value of an annuity formula and 1.25% monthly interest rate.

b) Total cost of buying the laptop on HP = $2172.80, including the deposit amount and total instalments paid over the 12-month period.

a) The deposit amount is $1850 x 20% = $370. The remaining balance to be paid is $1850 - $370 = $1480. The interest rate charged per month is 15%/12 = 1.25%. Using the formula for the present value of an annuity, the monthly instalments can be calculated as $141.90 (rounded to the nearest cent).

b) The total cost of buying the laptop on HP can be calculated by adding the deposit amount to the total amount paid over the 12-month period. Therefore, the total cost is $370 + ($141.90 x 12) = $2172.80.

Learn more about interest rates here: brainly.com/question/28013938

#SPJ4

The equation d=65t models the distance, d, that Malcolm's family travels after t hours. Malcolm's family travels 65 miles per hour faster than Theo's family.

The equation d=65t models the distance, d, that Malcolm's family travels after t hours. To calculate how much faster Malcolm's family travels than Theo's family, we must first know the speed of Theo's family. Let's say Theo's family travels at 25 miles per hour. To calculate the difference in speed between the two families, we must subtract 25 mph from 65 mph. The difference is then 40 mph, meaning Malcolm's family travels 40 mph faster than Theo's family.

Learn more about equation here

https://brainly.com/question/28243079

#SPJ4

The equation for capital gain as a percent of the original purchase price will be equal to a = (y - x)/x × 100.

If a mathematical operation includes at least two words that are connected by an operator and either comprise numbers, variables, or both, it is referred to as an expression.

The operations with reflection coefficients include adding, subtracting, multiplying, and dividing. A mathematical operation like reduction, addition, multiplication, or division is used to include terms in an expression.

As per the given information in the question,

Use the equation for capital gain,

Let the selling price be y and the purchase price is x dollars.

Capital gain = Selling price - Purchase

Substitute the values,

Capital gain = y - x

Now, let's find out the percent increase.

Let's assume that 'a' is the percent increase.

So, the equation will be,

(a)(x) = y - x

ax = y - x

Divide both sides by x.

(ax)/x = (y - x)/x

a = (y - x)/x

Multiply the equation by 100 to show in percentage form,

a = (y - x)/x × 100

To know more about Expression:

https://brainly.com/question/14083225

#SPJ1

Answer:

To make only 12% profit, the discount should be increased to 16%

Step-by-step explanation:

The given information are;

The percentage discount on goods = 10%

The profit made from the sale of the watch = 20%

The amount the watch was sold = Rs.10,710

The percentage VAT included = 13%

Let the recommended selling price of the watch = X

Therefore, we have;

The price after 10% discount = 0.9×X

Which gives;

The amount the watch was sold = Price after 10% discount + Price after 10% discount ×VAT

The amount the watch was sold = 0.9×X + 0.9×X×13% = 0.9×X + 0.9×X×0.13

Rs.10,710 = 0.9×X + 0.9×X×0.13 = 1.017×X

X = Rs.10,170/1.017 = Rs. 10,000

The recommended selling price of the watch = Rs. 10,000

The profit was 20% of selling price which gives;

Profit = Selling price - Cost price = Rs. 9,000  - Rs. X = 0.2 × Rs. X

9000 - X = 0.2×X

9000 = X + 0.2×X  = 1.2×X

X = 9000/1.2 = Rs. 7,500

To make only 12% profit, we have;

12% of Rs. 7,500 = 0.12 × Rs.7,500 = Rs. 900

Selling price = Cost price + Profit = Rs. 7,500 + Rs. 900 = Rs. 8,400

Percentage discount from Rs.10,000 to get Rs. 8,400 is given as follows;

Percentage discount = Y%

Therefore;

Y = (10,000 - 8,400)/10000 × 100 = 0.16 × 100 = 16%

Y = 16%

Therefore, to make only 12% profit, the discount should be increased to 16%.

Answer:

It would be at the beginning of the trials

Step-by-step explanation:

Answer:

Step-by-step explanation:

m

Answer:

SA = 10,800 ft²

Step-by-step explanation:

To find the surface area of a rectangular prism, you can use the equation:

SA = 2 ( wl + hl + hw )

SA = surface area of rectangular prism

l = length

w = width

h = height

In the image, we are given the following information:

l = 40

w = 60

h = 30

Now, let's plug in the information given to us to solve for surface area:

SA = 2 ( wl + hl + hw)

SA = 2 ( 60(40) + 30(40) + 30(60) )

SA = 2 ( 2400 + 1200 + 1800 )

SA = 2 ( 5400 )

SA = 10,800 ft²

If this answer helped you, please leave a thanks!

Have a GREAT day!!!

Answer:

Hey! Ok so the answers are A.50% B.100% C.80%

Step-by-step explanation:

Just predict the number to what they're next to.

Hoped this helped Im Eve btw. Hope you have a great day and consider marking this brainliest Thank you so much if you do! ✨

-0.05 is the average rate of change in median age per year from 1930 to 1960.

The ratio can be defined as the number that can be used to represent one quantity as a percentage of another. Only when the two numbers in a ratio have the same unit can they be compared. Ratios are used to compare two objects.

Given,  a data set that gives the median age of an American man at the time of his first marriage.

Year                             Median age

1910                              25.1

1920                             24.6

1930                             24.3

1940                             24.3

1950                             22.8

1960                             22.8

1970                             23.2

1980                             24.7

1990                             26.1

2000                             26.8

The average rate of change from 1930 to 1960 = (-24.3 + 22.8) / (1960-1930)

The average rate of change from 1930 to 1960 = -0.05

Therefore, the average rate of change in median age per year from 1930 to 1960 is -0.05.

Learn more about ratios here:

https://brainly.com/question/13419413

#SPJ1

Answer:

(a) Vertical asymptote:  x = 5

     Horizontal asymptote:  y = 0

(b) Domain: (-∞, 5) ∪ (5, ∞)

     Range: (-∞, 0)

(c) x-intercept(s): None

     y-intercept: -1

Step-by-step explanation:

A vertical asymptote is a vertical line that the curve gets infinitely close to, but never touches. It is displayed as a vertical dashed line on the given graph. Therefore, the vertical asymptote is:

A horizontal asymptote is a horizontal line that the curve gets infinitely close to, but never touches. It is displayed as a horizontal dashed line on the given graph. Therefore, the horizontal asymptote is:

\(\hrulefill\)

Since the graph has a vertical asymptote at x = 5, it means that the function is undefined at x = 5. Therefore, the domain of the graph will be all real numbers except x = 5:

Since there is a horizontal asymptote at y = 0 and the curve appears to be always below the x-axis, it indicates that the range of the graph will be all negative y-values. Therefore, the range of the graphed function is:

\(\hrulefill\)

The x-intercepts are the x-values of the points where the curve intersects the x-axis, so when the y-coordinate of a point on the graph is zero.

As the given graph has a horizontal asymptote at y = 0 and the curve appears to be always below the x-axis, it implies that the graph does not cross the x-axis. Therefore:

The y-intercept is the y-value at the point where the curve intersects the y-axis, so when the x-coordinate of a point on the graph is zero.

From inspection of the given graph, we can see that the curve crosses the y-axis at y = -1. Therefore:

Answer:

2 3/5

Step-by-step explanation:

Simply change the 1st fraction into improper form:

17/5 - 4/5

Then subtract

13/5

Then write into mixed fraction

2 3/5

Answer:

13/5 or 2 3/5

Step-by-step explanation:

Answer:

1. 1=18°, 2=90°

2. 1=85°

3. 1=97°

4. 2=83°

5. 3=49°

6. 1=94°

7. 4=45°

8. 3=65°

9. 2=79°

10. 5=73°

11. 6=147°

12. 1=26°

13. 2=32°

Step-by-step explanation:

1. all angles of a triangle equal 180. 2 is 90 degrees because you can look across to find the symbol. Then you subtract 180 by 72 and 90 to get 18.

2. do the same thing as last time, 180 minus 40 and 55.

3. In order to figure this out, you need to have the angle 2. One you have 83, angles like this, together will add up to 360 if you put 2 of them together. 83×2=166. 360-166=194. 194/2=97.

4. To figure this out, you find the angle across from it because those are always the same. Follow the same process to subtract 39 and 58 from 180 to get 83.

5.Now that you have the angle 2 you can figure this one out as well, again, follow the process of subtracting the two opposite angles from 180 to get 49.

(This is taking really long to explain so if you have questions just ask.)

Answer:

A: 25/4 B: 17/3

:)))))))))))))))))

Answer:

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

Distributive Property is:

Use same rule to find the product:

Answer: 878

Step-by-step explanation:

sorry i dont know

Answer:

75 or A

Step-by-step explanation:

Just answered it myself! ^^

The value of constant in the equation is 75

The equation of the graph is given as:

Height = Constant/Width

Make Constant the subject

Constant = Height * Width

From the graph, we have:

(Height, Width) = (3,25)

So, we have:

Constant = 3 *25

Constant = 75

Hence, the value of constant in the equation is 75

Read more about functions at:

https://brainly.com/question/11464095

Answer:

y= - 5x+6

Step-by-step explanation:

Answer:

110

Step-by-step explanation:

Rate or proportion shows the relationship between the variation in the  number of two variables.

Given that the ratio of alternative songs to total songs is 9:14.

Total songs = 308

Since the to every 14 total songs, there is 9 alternative songs.

Thus,

Number of alternative songs = \(\frac{9}{14}\) x 308

                                                = 198

There are 198 alternative songs in the music library.

The number of songs that are NOT alternative songs = 308 - 198

                                                                                         = 110

Thus, there are 110 songs that are NOT alternative songs.

Answer:

the answer is 2...

Step-by-step explanation:

cause 1+1 is two

I Need help on the same thing

Answer:

True

Step-by-step explanation:

The equation to find the circumference of the circle = Diameter x 3.14

So, it is true.

(a) Probability is not provided.

(b) Probability is not provided.

(c) Probability is not provided.

(a) The probability that the cost of automobile repairs will be more than $470 can be calculated based on the given information.

To calculate the probability, we need additional information about the distribution of automobile repair costs, such as the mean and standard deviation, or a probability distribution function. Without this information, we cannot determine the probability of the cost being more than $470.

(b) The probability that the cost of automobile repairs will be less than $70 can also be calculated based on the given information.

Similar to part (a), we need additional information about the distribution of automobile repair costs to determine the probability of the cost being less than $70. Without this information, we cannot calculate the desired probability.

(c) The probability that the cost of automobile repairs will be between $270 and $140 can be calculated based on the given information.

Again, without additional information about the distribution of automobile repair costs, such as the mean and standard deviation, we cannot calculate the probability of the cost falling between $270 and $140.

To accurately determine these probabilities, we would need more information about the distribution of automobile repair costs or specific assumptions about the distribution.

To learn more about probability, click here: brainly.com/question/33369991

#SPJ11