help quick plz must get this correct I will make u a brainllest

Answer:

30-12=18

18-18=0

Step-by-step explanation:

2x + 12 = 30

X represents the snacks, 2 represents the $2 per snack, 12 represents the $12 entry fee, and 30 represents the $30 Olivia had.

Answer:

x+y >= 5

y<=8

x<=10

x>y

Step-by-step explanation:

x+y is greater or equal to 5 because you need at least 5 for dinner.

y is less than equal to 8 because the fishing laws state you can't have more than 8 trout.

x is less than equal to 10 because the fishing laws state you can't have more than 10 salmon.

x>y because you intend to catch more salmon than trout

By using the distributive property of subtraction, expression 11x+3y subtracted from 13x+9y is equal to 2x+6y.

The distributive property of subtraction states that when subtracting a value from a sum, the same result can be achieved by subtracting the value from each addend separately and then finding the difference between the two results.

An expression is a combination of numbers, variables, and operators, such as +, -, x, ÷, and parentheses, that represents a mathematical relationship or quantity. It does not contain an equals sign.

According to the given information:

In the given context, the word "from" means to subtract.

So, if we have to subtract 11x+3y from 13x+9y, we can rewrite it as:

(13x+9y) - (11x+3y)

Then, by using the distributive property of subtraction, we can simplify the above expression as follows:

13x+9y - 11x-3y

Now, combining like terms, we get:

2x + 6y

Therefore, 11x+3y subtracted from 13x+9y is equal to 2x+6y.

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The outer diameter of the thin-walled pipe can be calculated by adding twice the thickness to the inner diameter. Therefore, the outer diameter is 0.5 in + 2(0.025 in) = 0.55 in.

A thin-walled pipe is a hollow cylinder with a relatively small thickness compared to its inner and outer diameters. In this case, the inner diameter of the pipe is given value as 0.5 in, and the thickness is 0.025 in.

To find the outer diameter, we add twice the thickness to the inner diameter. This is because the thickness is divided equally on both sides of the inner diameter. So, the outer diameter can be calculated as 0.5 in + 2(0.025 in) = 0.55 in.

The outer diameter is an important parameter in determining the overall size and structural integrity of the pipe. It affects the flow capacity, strength, and compatibility with other pipe fittings.

Knowing the outer diameter allows for proper sizing and fitting of the thin-walled pipe in various applications, such as plumbing, HVAC systems, or fluid transportation.

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28 is the number of tickets of the second prize

A word problem is a mathematical exercise where significant background information on the problem is presented in ordinary language rather than in mathematical notation

Given that:

The first time wins = 60 tickets

The second time, she won a bonus, which was 4 times the number of tickets of the second prize

Altogether she won 200 tickets

Let N represent the number of tickets of the second prize

This can be written as:

60 + N + (4×N) = 200

60 + N + 4N = 200

60 + 5N = 200

5N = 200 -60

5N = 140

N = 140/5

N = 28

Therefore, the number of tickets of the second prize is 28

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Answer: 46

Step-by-step explanation:

When we are trying to find 8% of 575, so we just multiply 0.08 * 575 and we get an answer of 46.

9.49$

Answer:

3472

Step-by-step explanation:

pls mark brainiest I solved it.

Answer:

3.572

Step-by-step explanation:

I don't know what to explain or how

The percentage of the students who wore a silly hat is 64 %.

The percentage is defined as a ratio expressed as a fraction of 100.

We have been given that Last Tuesday was a silly hat day at Aaron's school. 64 students wore a silly hats and 36 students did not.

We have to determine the percentage of the students who wore a silly hat

The total number of students = 64 students wore silly hats and 36 students did not.

The total number of students = 64 + 36 = 100

We have to determine the percentage of the students who wore a silly hat

The percentage of the students wore a silly hat = (64/ 100) × 100

The percentage of the students wore a silly hat = 0.64 × 100

The percentage of the students wore a silly hat = 64 %

Thus, the percentage of students who wore silly hats is 64 %.

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The volume of the fully inflated balloon is \(\frac{19652}{3}\)π inch³ and volume of half inflated balloon is  \(\frac{19652\pi }{6}\).

Volume of a three dimensional shape is the space occupied by the shape.

Given that,

Diameter of a fully inflated balloon = 34 inch

Radius is half the diameter.

Radius of fully inflated balloon = 34 / 2 = 17 inches

Volume of a sphere = \(\frac{4}{3}\) π r³, where r is the radius.

(a) Volume of fully inflated balloon = \(\frac{4}{3}\) π (17)³

                                                    = \(\frac{19652}{3}\)π inch³

(b) Volume of the half inflated balloon = Half of the fully inflated volume

                                                          = (\(\frac{19652}{3}\)π / 2) inch³

                                                          = \(\frac{19652\pi }{6}\) inch³

(c) Volume of half inflated balloon = \(\frac{19652\pi }{6}\)

\(\frac{4}{3}\) π r³ = \(\frac{19652\pi }{6}\)

\(\frac{4}{3}\) r³ = \(\frac{19652}{6}\)

r³ = \(\frac{19652}{8}\)

r = 13.49 inch

Hence the volume and radius are found.

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The differential equation describing the relationship between the balance B of Rachel's car loan and time t is given by dB/dt = 0.045B - 375.

The equation represents the change in the balance of Rachel's car loan over time. The term dB/dt represents the rate of change of the balance with respect to time. The right-hand side of the equation consists of two terms. The first term, 0.045B, represents the increase in the balance by 4.5% per month. This term accounts for the growth of the loan balance due to accrued interest.

The second term, -375, represents the decrease in the balance by $375.00 each month, which could be the monthly payment towards the loan principal. By subtracting this payment from the growth, the equation captures the net change in the balance. The equation allows us to model and analyze the behavior of the loan balance as time progresses.

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1. (a) 50% of the data set is greater than 16.

(b) 68.26% of the data set falls between 10 and 22.

(c) 2.28% of the data set is greater than 28.

(d) 0.62% of the data set is less than 1.

(e) 66.87% of the data set falls between 4 and 19.

(f) 15.25% of the data set falls between 22 and 31.

2. the breeder can expect to have approximately 111 Siamese cats with weights between 5.2 and 7.6 pounds.

3. approximately 2.28% of the bottles would be expected to have less than 58 ounces.

(a) Since the variable is normally distributed with a mean of 16 and a standard deviation of 6, we can use the Z-score formula:

Z = (X - μ) / σ

where X is the value we're interested in, μ is the mean, and σ is the standard deviation.

X = 16, μ = 16, and σ = 6.

Z = (16 - 16) / 6 = 0

The Z-score of 0 corresponds to the mean of the distribution. To find the area to the right of 16, we can look up the Z-score of 0 in the standard normal distribution table, which gives us a value of 0.5000. However, since we want the area to the right, we subtract this value from 1:

1 - 0.5000 = 0.5000

Therefore, 50% of the data set is greater than 16.

(b) To find the percent of the data set that falls between 10 and 22, we can calculate the area under the normal distribution curve between these two values.

Z₁ = (10 - 16) / 6 = -1.00

Z₂ = (22 - 16) / 6 = 1.00

Looking up these Z-scores in the standard normal distribution table, we find that the area to the left of Z = -1.00 is 0.1587 and the area to the left of Z = 1.00 is 0.8413. To find the area between these two Z-scores, we subtract the smaller area from the larger area:

0.8413 - 0.1587 = 0.6826

Therefore, 68.26% of the data set falls between 10 and 22.

(c) To find the percent of the data set that is greater than 28

Z = (28 - 16) / 6 = 2.00

Looking up this Z-score in the standard normal distribution table, we find that the area to the left of Z = 2.00 is 0.9772. Since we want the area to the right, we subtract this value from 1:

1 - 0.9772 = 0.0228

Therefore, 2.28% of the data set is greater than 28.

(d) To find the percent of the data set that is less than 1

Z = (1 - 16) / 6 = -2.50

Looking up this Z-score in the standard normal distribution table, we find that the area to the left of Z = -2.50 is 0.0062. Therefore, 0.62% of the data set is less than 1.

(e) To find the percent of the data set that falls between 4 and 19

Z₁ = (4 - 16) / 6 = -2.00

Z₂ = (19 - 16) / 6 = 0.50

Looking up these Z-scores in the standard normal distribution table, we find that the area to the left of Z = -2.00 is 0.0228 and the area to the left of Z = 0.50 is 0.6915. Subtracting the smaller area from the larger area:

0.6915 - 0.0228 = 0.6687

Therefore, 66.87% of the data set falls between 4 and 19.

(f) To find the percent of the data set that falls between 22 and 31

Z₁ = (22 - 16) / 6 = 1.00

Z₂ = (31 - 16) / 6 = 2.50

Looking up these Z-scores in the standard normal distribution table, we find that the area to the left of Z = 1.00 is 0.8413 and the area to the left of Z = 2.50 is 0.9938. Subtracting the smaller area from the larger area:

0.9938 - 0.8413 = 0.1525

Therefore, 15.25% of the data set falls between 22 and 31.

2. For the weights of Siamese cats, which are normally distributed with a mean of 6.4 pounds and a standard deviation of 0.8 pounds, we want to find the number of cats that have weights between 5.2 and 7.6 pounds.

Z₁ = (5.2 - 6.4) / 0.8 = -1.5

Z₂ = (7.6 - 6.4) / 0.8 = 1.5

The area to the left of Z = -1.5 is 0.0668, and the area to the left of Z = 1.5 is 0.9332. To find the area between these two Z-scores, we subtract the smaller area from the larger area:

0.9332 - 0.0668 = 0.8664

This means that 86.64% of Siamese cats are expected to have weights between 5.2 and 7.6 pounds.

To find the number of cats in a sample of 128 cats, we can multiply the percent by the total number of cats:

0.8664 * 128 = 110.87

Rounding to the nearest whole number, the breeder can expect to have approximately 111 Siamese cats with weights between 5.2 and 7.6 pounds.

3. For one quart bottles of apple juice with weights normally distributed with a mean of 64 ounces and a standard deviation of 3 ounces, we want to find the percent of bottles that would be expected to have less than 58 ounces.

To calculate this, we can convert the weight of 58 ounces to a Z-score:

Z = (58 - 64) / 3 = -2

Looking up the Z-score of -2 in the standard normal distribution table, we find that the area to the left of Z = -2 is 0.0228. Therefore, approximately 2.28% of the bottles would be expected to have less than 58 ounces.

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The hypotenuse of the right triangle is the one in option 1;

c = 2√13 inches.

Here we can see a right triangle where we know the lengths of the two legs, and we want to find the length of the hypotenuse.

Remember that Pythagorean's theorem says that the sum of the squares of the legs is equal to the square of the hypotenuse, so we can write the equation:

(4in)² + (6 in)² = c²

Solving that equation for c, we will get:

c = √((4in)² + (6 in)²)

c = √( 52 in²)

And we know that 4*13 = 52

Then, ignoring the units:

c = √52 = √(4*13) = √4*√13 = 2√13 inches.

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The canonical expression equivalent to sinusoidal model y(t) = 2 · sin (4π · t) + 5 · cos (4π · t) is y(t) = (√ 29) · sin (4π · t + 0.379π) .

Herein we have a simple harmonic motion model represented by a sinusoidal expression of the form y(t) = A · sin (C · t) + B · cos (C · t), which must be transformed into its canonical form, that is, y(t) = A' · sin (C · t + D). We proceed to perform the procedure by algebraic and trigonometric handling.

The amplitude of the canonical function is determined by the Pythagorean theorem:

A' = √(2² + 5²)

A' = √ 29

The angular frequency C  is the constant within the trigonometric functions from the non-canonical formula:

C = 4π

Then, we find the initial position of the weight in time: (t = 0)

y(0) = 2 · sin (4π · 0) + 5 · cos (4π · 0)

y(0) = 5

And now we calculate the angular phase below: (A' = √ 29, C = 4π, y = 5)

5 = √ 29 · sin (4π · 0 + D)

5 / √ 29 = sin D

D ≈ 0.379π rad

The canonical expression equivalent to sinusoidal model y(t) = 2 · sin (4π · t) + 5 · cos (4π · t) is y(t) = (√ 29) · sin (4π · t + 0.379π) .

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Answer:

2 hours

Step-by-step explanation:

The thickness of the clay layer, which drains only from the upper surface, can be determined based on the consolidation settlement observations. With 50% of consolidation settlement occurring in 1 hour for a 25 mm thick specimen, and a total primary consolidation settlement of 35 mm occurring over many years, the thickness of the clay layer is approximately 87.5 mm.

The consolidation settlement of a clay specimen can be used to estimate the thickness of a clay layer that drains only from the upper surface. In this case, the observed settlement data provides valuable information.

Firstly, we know that 50% of the consolidation settlement occurs in 1 hour for a 25 mm thick clay specimen. This is an important parameter for calculating the coefficient of consolidation (Cv) using Terzaghi's theory. From the Cv value, we can estimate the time required for full consolidation settlement.

Secondly, we are given that the same clay settles 10 mm over 10 years and eventually settles a total of 35 mm over a longer period. This long-term settlement is known as the total primary consolidation settlement. By comparing this settlement value with the settlement data from the oedometer test, we can determine the thickness of the clay layer.

To calculate the thickness, we can use the concept of the consolidation settlement ratio. The ratio of the total primary consolidation settlement to the consolidation settlement at 50% completion is equal to the ratio of the total thickness to the thickness at 50% completion. Applying this ratio, we can determine that the thickness of the clay layer, which drains only from the upper surface, is approximately 87.5 mm.

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The slοpe οf the line passing thrοugh the pοints (-2,-4) and (3,-4) is 0.

In mathematics, slοpe refers tο the measure οf the steepness οf a line. It is defined as the ratiο οf the vertical change (rise) between twο pοints.

Tο find the slοpe οf the line passing thrοugh the pοints (-2,-4) and (3,-4), we can use the slοpe fοrmula:

slοpe = (change in y) / (change in x)

Let's call the first pοint (-2,-4) "pοint 1" and the secοnd pοint (3,-4) "pοint 2". Then, we have:

change in y = y2 - y1 = (-4) - (-4) =

change in x = x2 - x1 = 3 - (-2) = 5

Substituting these values intο the slοpe fοrmula, we get:

slοpe = (change in y) / (change in x) = 0 / 5 = 0

Hence, the slοpe οf the line passing thrοugh the pοints (-2,-4) and (3,-4) is 0.

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Answer:

72

Step-by-step explanation:

8×n

8×9

=72

just substitute 9 were n is the multiple

to check

8n=72 (divide by 8 both sides)

n=9

Step-by-step explanation:

(6 - W)/(10+10)= (6 - W)/20= 2

6 - W= 40

-W= 34

W= -34

Answer:

line can be described by the equation y = mx + b, where m is the slope of the line and b is the y-intercept, which is the point where the line crosses the y-axis.

Since we are given that the line has a slope of 1 and includes the point (10, 10), we can plug these values into the equation to solve for the y-intercept. We get:

10 = 1 * 10 + b

b = 10 - 10

b = 0

So the equation of the line is y = x + 0, or simply y = x.

Since we are also given that the line includes the point (u, 9), we can substitute this value for y in the equation of the line to solve for u. We get:

9 = x

x = 9

Therefore, the value of u is 9.

Uday Tahlan

line that includes the points (-10, W) and (10, 6) has a slope of I. What is the value of w?

Can someone please help me?

Thank you!

To find the value of W, we can use the slope-intercept form of a linear equation, which is y = mx + b, where m is the slope and b is the y-intercept.

Since we are given that the line includes the points (-10, W) and (10, 6) and has a slope of I, we can use these two points to find the value of W.

First, we can plug in the coordinates of one of the points and the value of the slope into the equation to solve for the y-intercept. Let's use the point (10, 6):

6 = I * 10 + b

b = 6 - 10I

Then, we can plug the values of the slope and y-intercept into the equation and solve for W using the coordinates of the other point (-10, W):

W = I * (-10) + (6 - 10I)

= -10I + 6 - 10I

= 6 - 20I

Therefore, the value of W is 6 - 20I.

The value of x in given triangle is 9 i.e. C.

What is a triangle?

A triangle is a three-sided polygon that has three vertices (or corners) and three angles. Triangles are the simplest polygon, and they can be classified based on their side lengths and angle measures.

There are several ways to classify triangles based on their sides:

Equilateral triangle: A triangle having three sides which are  of equal length.

Isosceles triangle: A triangle with two sides of equal length.

Scalene triangle: A triangle with no sides of equal length.

Now,

For given triangle as the ratio of two sides is

44:44 and 21:21 =1:1

then

3x-2=25

3x=27

x=9

hence,

          The value of x is equal to 9.

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Sr. No. Title Variable Fixed

1 Spending variance U F

2 Efficiency variance U -

3 Production-volume variance F -

4 Flexible-budget variance F U

5 Underloaded (overallocated) manufacturing overhead U F

Explanation:

Spending variance:

Actual variable costs incurred - (Actual input x budgeted variable rate) = $31,500 - $30,800 = $700 (Unfavorable)

Actual fixed costs incurred - Budgeted fixed costs = $13,500 - $14,400 = ($900) (Favorable)

Efficiency variance:

(Budgeted input x budgeted variable rate) - (Actual input x budgeted variable rate) = $32,400 - $30,800 = $1,600 (Unfavorable)

There is no efficiency variance for fixed costs as they do not depend on the level of input.

Production-volume variance:

(Budgeted input - Actual input) x Budgeted variable rate = (1,200 - 1,000) x $32 = $6,400 (Favorable)

There is no production-volume variance for fixed costs as they do not depend on the level of input.

Flexible-budget variance:

Actual costs incurred - Flexible budget = ($31,500 + $13,500) - $45,000 = ($1000) (Favorable) for variable costs

Actual costs incurred - Flexible budget = ($13,500) - $15,400 = ($1,900) (Unfavorable) for fixed costs

Underallocated (overallocated) manufacturing overhead:

Actual costs incurred - Costs allocated to products = ($31,500 + $13,500) - ($35,000 + $15,400) = ($2,400) (Underloaded) for variable and fixed costs..

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Answer:

A is correct because you need to stop deleting my answers.

Answer:

Step-by-step explanation:

27,33

9*3 is 27

11*3 is 33

33-27 is 6

i only have one, sorry!

Answer:

Step-by-step explanation:

Let the larger number = y

Let the smaller number = x

x/y = 9/11

y - x = 6

Add x to both sides of the second equation

y = 6 + x

Substitute into the first equation

x/(x + 6) = 9/11

Cross multiply

11x = 9(x + 6)

Remove the brackets

11x = 9x + 54

Subtract 9x from both sides.

2x = 54

x = 54/2

x = 27

y = 27 + 6

y = 33

(27,33)

The way I've done it, there isn't a second pair.

I suppose you could do it this way.

9/11 = -27/-33

-27 - - 33 = 6

So the second pair could be

(-27, - 33)

The measure of the central angle of a circle is 45⁰

A figure which is formed by two rays or lines that shares a common endpoint is called an angle.

Here,

Theta (angle) θ = arc length / radius

θ = 15 π / 60 cm

θ =  0.79 radians

Convert to degrees

θ = 0.79 radians = 0.79 X 180/ π

                     = 0.79 X 180/ 3.14

                     = 45⁰

Thus, the measure of the central angle of a circle is 45⁰.

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Answer:

feets of green fabric - 2feets = answer

Step-by-step explanation:

the inch of the total fabric wasn't given but the path given was that given to her sister

being 24inch

we are supposed to turn the inch to feet to find the answer

so, if

1 inch = 1 feets

12

therefore,

24inch = 1\12 * 24 = 2

let total feet of the fabric = f and

let part left of the fabric = p

therefore, p = f - 2

where p = part left

f = total fabric

Answer:

3600

Step-by-step explanation:

The good approximation for the value of the function, f(x), when x = 18 is -2.

Given

A line of best fit is for the set of points in the table.

The standard form of the linear equation is;

\(\rm y =mx+c\)

Where m is the slope of the line and c is the intercept.

Therefore,

By using the equation for the line of best fit, what is a good approximation for the value of the function, f(x), when x = 18 is;

\(\rm f(x) = -0.86x + 13.5\\\\f(18)= -0.86(18)+13.5\\\\f(18)= -15.48 + 13.5 \\\\ f(18)= -1.98\)

Hence, The good approximation for the value of the function, f(x), when x = 18 is -2.

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The bought one item of $20, one item of $14, one item of $9, and one item of $2.

Konrad, Marek, and Ming went to the mall. Each person spent between $45 and $55.

The prices of the items are given below.

Drag items to each box to show what each person could have bought.Konrad (bought 3 items)

The sum of the prices of the items should be within the range of $45 to $55.

Therefore, Konrad could have bought one item of $18, and two items of $13 each.

Marek (bought 5 items)The sum of the prices of the items should be within the range of $45 to $55.

Therefore, Marek could have bought one item of $10, three items of $9 each, and one item of $8.

Ming (bought 4 items)The sum of the prices of the items should be within the range of $45 to $55.

Therefore, Ming could have bought one item of $20, one item of $14, one item of $9, and one item of $2.

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Answer: m<ABE = 115.5, m<DBE = 25.5

Step-by-step explanation:

I said that DBE is 25.5 because I know that <DBC is 90 degrees so I substracted 90 - 64.5 which gave me 25.5.

Since we know that DBC is 90 degrees that means DBA is also 90 degrees since ABC is a supplementary angle (180 degrees) (90 + 90 = 180)
Therefore, I did 90 + 25.5 to find m<ABE

Hope this helps.