A three-column table is given.


Part 8 B D
Part 10 15 45
Whole A C 72


What is the value of C in the table?
18
24
27
71

Using the substitution method the equation 4x - y = 3 and 6y = 4 + 2x is solved to be

In this method, the equation 4x - y = 3 will first be written in terms of y

4x - y = 3

y = 4x - 3

substituting y = 4x - 3 into 6y = 4 + 2x

6y = 4 + 2x

6(4x - 3) = 4 + 2x

24x - 18 = 4 + 2x

collecting like terms

24x - 2x = 18 + 4

22x = 22

x = 1

substituting x = 1 into y = 4x - 3

y = 4x - 3

y = 4(1) - 3

y = 4 - 3

y = 1

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After solving the function S(t) = 12 + 2 sin [(2π)/(365)t], the amount of sunlight becomes 12 hours for the first time is obtained as option B: t = 365/2.

What is a function?

In mathematics, a function is a unique arrangement of the inputs (also referred to as the domain) and their outputs (sometimes referred to as the codomain), where each input has exactly one output and the output can be linked to its input.

The given function is -

S(t) = 12 + 2 sin [(2π)/(365)t]

Here, t is the number of days after 1st January.

S(t) is the number of hours of sunlight in a particular location.

In order to figure out when the amount of sunlight becomes 12 hours for the first time, substitute the value of S(t) = 12 and solve the function for t -

S(t) = 12 + 2 sin [(2π)/(365)t]

12 = 12 + 2 sin [(2π)/(365)t]

Simplifying the equation to get the result -

0 = 2 sin [(2π)/(365)t]

0 = sin [(2π)/(365)t]

π = (2π)/(365)t

Simplify the equation further -

365π = 2πt

t = 365π/2π

t = 365/2

Therefore, the value for t is obtained as t = 365/2.

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The number of hours of sunlight in a particular location S(t) can be modeled by the function S(t) = 12 + 2 sin [(2π)/(365)t], where t is the number of days after January 1st. (That is, t = 0 means January 1st.) After how many days will there be 12 hours of sunlight for the first time during the year?

365 over 4 days

365 over 2 days

1095 over 4 days

1095 over 2 days

Similarly, 27 out of the 32 ages are equal to or less than 71, so the percentile of 71 is 27/32, which is equal to 84.375%. This means that 84.375% of the Academy. Award winning best actors are 71 years old or younger.

The percentile of a number is the percentage of numbers that are equal to or less than that number. In this case, 27 out of the 32 ages are equal to or less than 71, so the percentile of 71 is 27/32, which is equal to 84.375%. This means that 84.375% of the Academy Award winning best actors are 71 years old or younger.

The percentile of a number is the percentage of numbers that are equal to or less than that number. For example, among the 32 Academy Award winning best actors, 37 is the 14th smallest number, so the percentile of 37 is 14/32, which is equal to 43.75%. This means that 43.75% of the Academy Award winning best actors are 37 years old or younger. Similarly, 27 out of the 32 ages are equal to or less than 71, so the percentile of 71 is 27/32, which is equal to 84.375%. This means that 84.375% of the Academy Award winning best actors are 71 years old or younger.

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Polynomial equations are those created by combining variables, exponents, and coefficients.The cost of coffee is 8 and the cost of tea is 4.

The higher exponent, known as the degree of the equation, might have several exponents.

When there is at least one algebraic term with at least one variable and all of the exponents are integers that are equal to or larger than zero, the equation is said to be a polynomial equation.

Coffee cost = Rs 8

Tea cost = Rs 4

Let the price of coffee be X

and the price of Tea be y , then

45 x + 41 y = 524

20 x + 11y = 204

y = 524 - 45 x /41=

= 20 x + 11( 524 -45 x)/41)

= 204

820 x + 5764- 495 x = 204* 41

325x = 2600

x = 8 y = 524 - 8* 45/45

y = 4

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Polynomial equations are those created by combining variables, exponents, and coefficients. The cost of coffee is 8 and the cost of tea is 4.

The higher exponent, known as the degree of the equation, might have several exponents.

When there is at least one algebraic term with at least one variable and all of the exponents are integers that are equal to or larger than zero, the equation is said to be a polynomial equation.

Coffee cost = Rs 8

Tea cost = Rs 4

Let the price of coffee be X

and the price of Tea be y , then

45 x + 41 y = 524

20 x + 11y = 204

y = 524 - 45 x /41=

= 20 x + 11( 524 -45 x)/41)

= 204

820 x + 5764- 495 x = 204* 41

325x = 2600

x = 8 y = 524 - 8* 45/45

y = 4

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Answer:

D

Step-by-step explanation:

When rounding, the number 5 is rounded up. So the number 387.352 will be rounded up 387.4. Other options are not suitable. Correct answer is "D"

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The three right triangles are all similar. The ratios of the sides of the triangles are AB/BC = 3/4, BC/CD = 2/3, and AD/DC = 5/6.

a) All three of the right triangles are similar.

b) Triangle ABC:   AB/BC = 3/4

Triangle BCD:   BC/CD = 2/3

Triangle ADC:   AD/DC = 5/6

a) All three of the right triangles are similar because they all have three sides and two angles that are equal.

b) To find the ratios of the sides of the triangles, we use the Pythagorean Theorem.

Triangle ABC: AB^2 + BC^2 = AC^2. Therefore, AB/BC = (3/4)^2/(5/4)^2 = 3/4.

Triangle BCD: BC^2 + CD^2 = BD^2. Therefore, BC/CD = (2/3)^2/(4/3)^2 =2/3.

Triangle ADC: AD^2 + DC^2 = AC^2. Therefore, AD/DC = (5/6)^2/(7/6)^2 = 5/6.

The three right triangles are all similar. The ratios of the sides of the triangles are AB/BC = 3/4, BC/CD = 2/3, and AD/DC = 5/6.

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On solving the provided question, we can say that since it is a cuboid books could you fit on your bookshelf  = 24*12*36/8.5*11*1.5 = 10368/140.25 = 73.9251336898 = 73 books

A cuboid is a solid or three-dimensional form in geometry. A cuboid is a convex polyhedron having 8 vertices, 12 sides, and 6 rectangular faces. Another name for a cuboid is a cuboid. A cube is a cuboid with six square faces. Boxes include things like books and bricks. The following are the key variations between cubic and cubic: In contrast to a cube, which has rectangular faces, a cube has six equally sized square faces. Even though the cube and cuboid structures have a similar appearance, they differ in some ways in terms of side length, diagonal, and area.

since it is a cuboid

books could you fit on your bookshelf  = 24*12*36/8.5*11*1.5 = 10368/140.25 = 73.9251336898 = 73 books

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The amount of interest Sai will pay is $312.50.

Interest is the cost associated with borrowing money, or the return earned for lending money. It is typically expressed as a percentage of the principal amount borrowed or lent, and is usually paid periodically over the life of the loan. Interest can also be earned from investments, such as savings accounts, bonds, and other financial instruments. The rate of interest charged or earned varies depending on the nature of the loan or investment, the risk associated with the transaction, and the creditworthiness of the borrower or investor.

This is calculated by multiplying the principal amount of $12,500 by the interest rate of 2.5%, which equals 0.025. Then, the 0.025 is multiplied by the loan period of 24 months to come up with the total interest. Therefore, $12,500 x 0.025 x 24 = $312.50.

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Answer:

You can add 45 grams of water to 15 grams of sugar to make a 25% sugar solution.

Step-by-step explanation:

To make a 25% sugar solution, you need to add a certain amount of water to 15 grams of sugar. To determine this amount, you can use the following formula:

(desired concentration / 100) x total volume = amount of solute (in this case sugar)

We know that the desired concentration is 25%, and the amount of solute is 15 grams. To find the total volume, we can use the following formula:

amount of solute / desired concentration = total volume

15 grams / 0.25 = 60 grams

So the total volume of the solution is 60 grams, and the amount of water you need to add to make a 25% sugar solution using 15 grams of sugar is 45 grams.

You can add 45 grams of water to 15 grams of sugar to make a 25% sugar solution.

Another way to think of it is to add 3 times the amount of water as the amount of sugar, since 25% of 60g is 15g

Answer:

20 or +-20

Step-by-step explanation:

They are asking for an nth root. This is generic-speak for square root, third root, fourth root, etc.

Since n is 2, they are talking about 2th root...really 2nd root. But we commonly call that square root.

Square root of 400 is 20. (That's the principal square root because its positive) They asked for real roots, so, technically -20 is also a square root of 400.

20^2 = 400 and

(-20)^2 = 400

So square root of 400 is +- 20.

Or if this is an intro class, then just 20 is probably a good enough answer.

The unit circle has a radius of 1, so it is the shortest distance from the origin to (x1,x2).

The vector of minimal length in Rn whose components add up to 1 is called the unit vector. The unit vector is calculated by dividing each component of the vector by the sum of all components. Thus, in Rn, the unit vector is given by (x1/s, x2/s, ..., xn/s), where s is the sum of all components.

In the case n=2, the unit vector is given by (x1/s,x2/s). Geometrically, this vector is the vector from the origin to the point (x1,x2) on the unit circle. This vector has minimal length because the unit circle has a radius of 1, so it is the shortest distance from the origin to (x1,x2).

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The product of the binomial factors is x² - 10x + 25.

Binomials are kind of polynomials which consist of only two terms.

The given binomial factor is x - 5

We have to find the product of this binomial with itself, (x - 5)².

We have to use the special product of square of a binomial difference, which is defined as,

(a - b)² = a² - 2ab + b²

The given product of the binomial factors is (x - 5)².

(x - 5)² = x² - (2 × x × 5) + 5²

           = x² - 10x + 25

Hence the product of the binomial factors is x² - 10x + 25.

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Answer:

The price: 16.5

The total payment: 18.82

The amount of tax: 18.82-16.5 = 2.32

Tax rate = The amount of tax / The price = 2.32/16.5 = 0.14 = 14%

To find the temperature in Reigate, which is halfway between St. Petersburg and Rome, we need to find the average of the two temperatures.

Average = (Temperature1 + Temperature2) / 2

Average = (-7 + 15) / 2 = 8 / 2 = 4

So, the temperature in Reigate was 4°C.

Answer:

4°C

Step-by-step explanation:

Try drawing it on a number line and counting 11 from -7° C and 11 from 15°C you'll end up with 4°C as the middle

Answer:

76ft^3

Step-by-step explanation:

Volume of a cube is Length x Width x Height, basically: 4 x 4 x 4 which is 64 ft^3. Add that to the small box gives you 64 + 12 or just 76 ft^3

The rate of customer entry into the store at 5:00 p.m. (t = 9) is -3 customers/hour.

In Maths, a fraction is used to represent the portion/part of the whole thing. It represents the equal parts of the whole. A fraction has two parts, namely numerator and denominator. The number on the top is called the numerator, and the number on the bottom is called the denominator.

A fraction is a part of a whole number, and a way to split up a number into equal parts. It is written as the number of equal parts being counted, called the numerator, over the number of parts in the whole, called the denominator.

Given the number of patrons entering the restaurant every two hours beginning at 8:00 am.

To find the rate of customer entry into the store at 5:00 p.m. (t = 9).

[tex]$\frac{36-42}{6-4}=\frac{-6}{2}=-3$[/tex]

Therefore, the rate of customer entry into the store at 5:00 p.m. (t = 9) is -3 customers/hour.

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Answer

The area of the platform :

56 = (3x+2) × x

Explanation (+ solving for x)

Let the width of Rectangular Platform is x feet.

Then,

Length of Rectangular Platform is (3x+2) feet

Area of Rectangular Platform = Length × width

[tex]56=(3x+2) × x \\ 56 = 3x² + 2x \\ 3x² +2x-56= 0 \\ x = \frac{ -2±\sqrt{ {2}^{2} - 4 \times 3 \times ( - 56)} }{2 \times 3} \\ = \frac{-2± \sqrt{4 + 672} }{6} \\ = \frac{ - 2±26}{6} \\ = - \frac{28}{6} or \: 4 [/tex]

Since x can't be negative,

Value of x is 4 feet.

So, width of Platform= 4

feet Length of Platform = 14 feet

Answer:

6.5

Step-by-step explanation:

Proportional relationship:

[tex]y \propto x \implies y=kx[/tex]

where k is the (non-zero) constant of proportionality.

To determine the constant of proportionality, substitute the given values into the equation and solve for k:

[tex]\implies 19.50=3k[/tex]

[tex]\implies k=6.5[/tex]

Therefore, the constant of proportionality is 6.5.

Each interval (a, a), [a, a), and (a, a] represents the empty set, whereas [a, a] denotes the singleton set {a}

What do you meant by interval?

a )  [0, 2]

The empty set is represented by the intervals (a, a), [a, a), and (a, a, while the singleton set an is denoted by [a, a].

b ) iv

If a function f(x) is continuous on a closed interval [ a, b], then f(x) has both a maximum and minimum value on [ a, b].

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Answer:

Lana: 4 / 14 = 3.5
Markus: 4 / 20 = 5

I'm not completely sure how they can have the same amount of marbles for both of them but... Markus does have 2.5 more than Lana in each bag.

Hope this helps <3

Step-by-step explanation:

Let's call the number of marbles in each bag "x". We can set up two equations based on the given information:

4x = 14 (for Lana)

4x = 20 (for Markus)

Solving for x in each equation, we get:

x = 14/4 = 3.5 (for Lana)

x = 20/4 = 5 (for Markus)

So Markus has 5 marbles in each bag, which is 1.5 more marbles per bag than Lana.

The slope of the equation of the line is 0 and the y-intercept is 6. To find the slope and y-intercept of the equation of the line, we need to first rewrite the equation in the standard form of y = mx + b.

The slope of the equation of the line is 0 and the y-intercept is 6.

Slope: 0

y-intercept: 6

To find the slope and y-intercept of the equation of the line, we need to first rewrite the equation in the standard form of y = mx + b.

In this equation, m is the slope and b is the y-intercept.

The equation is given as y − 6 = 0.

We can rewrite this equation as y = 0 + 6.

This can be rewritten as y = 0x + 6, where 0 is the slope and 6 is the y-intercept.

Therefore, the slope is 0 and the y-intercept is 6.

The slope of the equation of the line is 0 and the y-intercept is 6.

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Using multiplication operation, the total number of packages of shredded cheese is 56.

Multiplication operation is one of the four basic mathematical operations, including subtraction, division, and addition.

Multiplication operation has the following parts: multiplicand (the number being multiplied), the multiplier (the number doing the multiplication), the equal symbol, and the product (the result of the multiplication operation)

The number of rows = 7

The number of packages of shredded cheese per row = 8

The total number of packages = 56 (7 x 8)

Thus, the number of packages in the refrigerator is 56 shredded cheese.

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Answer:

A tangible asset is an asset that has physical substance. Examples include inventory, a building, rolling stock, manufacturing equipment or machinery, and office furniture. There are two types of tangible assets: inventory and fixed assets.

Step-by-step explanation:

Yes, because the distribution of relative frequencies is very close to the empirical rule for normal models.

Interval                      Relative Frequency

−0.34≤x<−0.31                     0.02

−0.31≤x<−0.28                     0.15

−0.28≤x<−0.25                    0.33

−0.25≤x<−0.22                    0.36

−0.22≤x<−0.19                     0.11

−0.19≤x<−0.16                      0.03

A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.

According to the question,

The values that are one standard deviation away are:

0.33 + 0.36 = 0.69

As per the empirical rule, the value will be: 0.68

Consequently, with two standard deviations, the quantities have always been 0.95, and according to the empirical rule. So the empirical rule followed by the data.

Therefore the correct option is (B).

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The complete question includes :

The mean and standard deviation of the sample data collected on continuous variable x, x are −0.25 and 0.03, respectively. The following table shows the relative frequencies of the data in the given intervals.

Answer:

5 hardcover and 3 paperback books

Step-by-step explanation:

h=hardcover books

p=paperback books

h + p = 8  ==> since the number of hardcover and paperback books add up

                     to 8 total books

4h + 2p = 26  ==> since the cost of each hardcover book is $4 and

                           the cost of each paperback book is $2, and the

                           total cost of all 8 books bought is $26

(h + p = 8) * 2  ==> multiply the equation by 2 to get 2p from p.

2h + 2p = 16  ==> simplify

  4h + 2p = 26

- (2h + 2p = 16)

4h-2h + 2p-2p = 26-16  ==> subtract the two equations to isolate h

2h + 0 = 10  ==> simplify

2h = 10

h = 5  ==> divide both sides by 2

5 + p = 8  ==> substitute h=5 into the equation h + p = 8

p = 3  ==> subtract 5 on both sides to isolate p

Hence, 5 hardcover and 3 paperback books were sold.

Answer:

hi

Step-by-step explanation:

Answer:

0.5

Step-by-step explanation:

If you flip a coin, the probability of getting a head is 0.5 or 0.5 on the probability scale.

It is worth noting that when a coin is fair, the probability of getting a head or a tail is always 0.5 or 50%.

So in the probability scale you should place a cross on the point 0.5 which indicates the probability of getting a head.

a) The sheep will not be able to eat grass from the neighbor's field. The leash is 20 meters long and is tied to a pole at the point (40, 20) in the field. The farthest point the sheep can reach is a point on the circle with radius 20 centered at (40,20), which is completely contained within the rectangular field.

b) The sheep will be able to eat grass from the neighbor's field. The leash is 20 meters long and is tied to a pole at the point (180,160) in the field. The farthest point the sheep can reach is a point on the circle with radius 20 centered at (180,160), which extends beyond the east and north boundaries of the rectangular field. Specifically, the sheep can reach the area on the northeast corner of the field.

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Yes, the lines represented by the equations at right are parallel. This can be seen by examining the slopes of the equations. The slope of the first equation is -3/5 and the slope of the second equation is -3/5. Since the slopes are equal, the lines are parallel.

To determine if two lines are parallel, we need to compare their slopes. The equation of the first line is y = -3x/5 and the equation of the second line is y = 5x/3. To calculate the slope of the first line, we need to take the coefficient of x (-3/5) and divide it by the coefficient of y (1).

The resulting slope is -3/5. To calculate the slope of the second line, we need to take the coefficient of x (5/3) and divide it by the coefficient of y (1). The resulting slope is also -3/5. Since the slopes of both lines are equal, the lines are parallel.

The equation of the first line is y = -3x/5 and the equation of the second line is y = 5x/3. To calculate the slope of the first line, we need to take the coefficient of x (-3/5) and divide it by the coefficient of y (1).

The resulting slope is -3/5. To calculate the slope of the second line, we need to take the coefficient of x (5/3) and divide it by the coefficient of y (1). The resulting slope is also -3/5. Since the slopes of both lines are equal, the lines are parallel.

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The statement regarding the percentages of men and women admitted is true.

A percentage is obtained similarly to a proportion, with the division of the number of desired outcomes by the number of total outcomes, and then multiplied by 100%.

The number of applicants for each department is given as follows:

The percentages of admitted people for each department is 50% men and 50% women, meaning that the statement in this problem is true.

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