pls exsplain how to do this

Approximately 27% of the jerseys did not sell.

What is Percentage?

Percentage is a way of expressing a number as a fraction of 100. It is used to describe ratios, proportions, and changes in quantities in terms of a fraction of the whole.

Solution:

The school ordered 225 jerseys and sold 165, so the number of jerseys that did not sell is:

225 - 165 = 60

To find the percentage of jerseys that did not sell, we need to divide the number of unsold jerseys by the total number of jerseys ordered and then multiply by 100:

60 / 225 x 100% = 26.67%

Rounding this to the nearest percent gives: 27%

Therefore, approximately 27% of the jerseys did not sell.

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Answer:

D

Step-by-step explanation:

the last one, because sin(0)=0, cos(0)=1.

The equation has x = 2 and x = 5. A valid solution for x is x = 5

From the question, we have the following parameters that can be used in our computation:

√(x - 1) - 5 = x - 8

Add 5 to both sides

This gives

√(x - 1)  = x - 3

Square both sides

So, we have the following representation

x - 1 = x² - 6x + 9

Evaluate the like terms

x² - 7x + 10 = 0

This gives

(x - 2)(x - 5) = 0

Solve for x

x = 2 and x = 5

Testing the solutions, we have

√(2 - 1) - 5 = 2 - 8

-4 = -6 ---- falsee

√(5 - 1) - 5 = 5 - 8

-3 = -3 ---- true

Hene, the valid value of x is 5

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Answer: If pqr ~ stu, then we know that the corresponding sides are proportional.

We have pq=25 and st=10, so we can find the ratio of corresponding sides as:

25 / 10 = 2.5

This means that each side of stu is 2.5 times smaller than the corresponding side of pqr.

The perimeter of pqr is 75, so we can find the length of the other sides by subtracting the length of pq from the perimeter and dividing by 2:

(pq + qr + rp)/2 = (25 + qr + rp)/2 = 75/2

25 + qr + rp = 75

qr + rp = 50

Since pqr ~ stu, we know that the ratio of perimeters is also 2.5. Therefore, the perimeter of stu is:

Perimeter of stu = 2.5 (st + tu + us)

We know st=10, so we can find the other sides as:

tu = qr / 2.5 = 50 / 2.5 = 20

us = rp / 2.5 = 50 / 2.5 = 20

Therefore, the perimeter of stu is:

Perimeter of stu = 2.5 (10 + 20 + 20) = 2.5 (50) = 125

So the perimeter of stu is 125.

Step-by-step explanation:

Answer:

La fórmula para calcular el balance (en dólares) de una inversión con una

A = P(1 + r/n)^(nt)

Donde:

A es el balance total después de t años

P es el depósito inicial

r es la tasa de interés anual expresada como decimal (5% = 0.05)

n es la frecuencia de capitalización por año (en este caso, 4 para compuestos trimestrales)

t es el tiempo en años

Sustituyendo los valores dados, la función que representa el balance después de t años es:

A(t) = 5000(1 + 0,05/4

b. Para encontrar el balance actual, podemos simplemente evaluar la función A en t = 0, lo que nos da:

A(0) = 5000(1 + 0,05/4

Por lo tanto, el balance actual de la cuenta es de $5000.

c. Supongamos que el costo de la matrícula y los gastos de su primer año en la universidad suman $20,000. Para determinar si la inversión cubrirá el costo, podemos evaluar la función A en t = 12 (es decir, después de 12 años desde el depósito inicial) y compararla con el costo de la matrícula y los gastos.

A(12) = 5000(1 + 0.05/4)^(4(12)) = $10,768.49

Como el balance de la cuenta después de 12 años es menor que el costo de la matrícula y los gastos, se necesitará más dinero para cubrir el costo del primer año de universidad. La cantidad adicional requerida será:

$20,000 - $10,768.49 = $9,231.51

Por lo tanto, se necesitarán $9,231.51 adicionales para cubrir el costo del primer año de universidad.

Step-by-step explanation:

tal vez te sirve esto

The equation representing the length of the garden in meters

is length = 24/width.

We know the perimeter of any 2D figure is the sum of the lengths of all the sides except the circle and the area of a rectangle is the product of its length and width.

Given, A rectangular garden has an area of 24 square meters.

We know, Area = length×width.

Therefore, 24 = length×width.

Now, An equation that represents the garden's length in meters is,

24 = length×width.

length = 24/width (meters).

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The conversion of the weight 68 kg from Kilogram to lbs will be equal to 149.914 lbs.

The fundamental mass unit in the metric system is the kilogramme (kg). A kilogramme and 1,000 cubic centimetres of water have fairly similar masses.

One pound is approximately equal to 454 grams. One kilogram is the same as 2.20462 lbs.

One pound is equal to 0.45359237 kilograms.

To convert kilograms (kg) to pounds (lbs), you can use the following formula:

To convert kilograms to pounds, multiply your figure by 2.20462

To convert 68 kg to lbs, you can multiply 68 by 2.20462:

68 kg X 2.20462 lbs/kg

= 149.914 lbs

Therefore, 68 kg is equal to 149.914 lbs.

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The complete question may be:

What is 68 Kg weight in lbs?

The sum of the algebraic expressions 8x - 2 and -3x² - 7 is given as follows:

-3x² + 8x - 9.

The algebraic expressions for this problem are defined as follows:

To add them, we must combine the like terms, that is, add the terms that have the same variable and exponent, which are given as follows:

Hence the sum has the result given as follows:

-3x² + 8x - 9.

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The measurements of AB = 20 in and AC = 10 in

Triangles that are similar to each other have corresponding sides that are proportional to one another and corresponding angles that are equal to one another.

Triangles with similar appearances can have varying diameters. In a set of similar triangles, the ratio of corresponding sides will be equal.

Here we have

Two Similar  triangles ABC and CDE  

Since the two triangles are Similar

=> AB/DE = AC/EC = BC/DC

Substitute each measurement of the sides

=> AB/16  = AC/8 = 15/12  

Take, AB/16 = 15/12  

=> AB/16 = 5/4

=> AB = 5(16)/4

=> AB = 20 in  

Take AC/8 = 15/12  

=> AC = 15(8)/12

=> AC = 15(2)/3

=> AC = 10

Therefore,

The measurements of AB = 20 in and AC = 10 in

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A correlation coefficient based on an observational study cannot be used to support a claim of cause and effect, as correlation does not imply causation.

Correlation is a statistical measure that describes the strength and direction of a relationship between two variables. A correlation coefficient ranges from -1 to 1, where -1 indicates a strong negative correlation, 0 indicates no correlation, and 1 indicates a strong positive correlation. Correlation does not imply causation, meaning that just because two variables are correlated does not mean that one causes the other.

In an observational study, researchers observe and record data on variables of interest without manipulating them directly. These studies are often used in fields such as epidemiology, social sciences, and psychology to investigate relationships between variables and identify potential risk factors for diseases or other outcomes.

Observational studies can suggest possible relationships between variables, but they cannot prove causation. This is because there may be other factors that are influencing the relationship between the variables, and these factors cannot be controlled or accounted for in an observational study. In order to establish causation, researchers need to conduct experiments where they can manipulate the variables and control for other factors that may influence the outcome.

Therefore, a correlation coefficient based on an observational study cannot be used to support a claim of cause and effect, as correlation does not imply causation.

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The conversion of 52 degree F into Celsius is 11.11 Degree Celsius.

The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given:

C= 5/9 (F- 32)

and, F = 9/5C + 32

We have F= 52 F put the value to Celsius Formula

C = 5/9 (52- 32)

C = 5/9 (20)

C = 100/ 9

C= 11.11

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Answer:

Therefore, the unknown number is 5.

Step-by-step explanation:

We can translate "Eight times the difference of a number and six is negative eight" into an algebraic equation as given below,

8(x - 6)

= -8                (where x is the unknown number we are trying to find)

The expression "the difference of a number and six" means x - 6. So, "eight times the difference of a number and six" means 8(x - 6).

The equation states that the product of 8 and the difference of the number x and 6 is equal to -8.

To solve for x, we can simplify the equation,

8(x - 6) = -8

8x - 48 = -8

8x = 40

x = 5

Therefore, the unknown number is 5.

Answer: 1 hour

Step-by-step explanation: 3/3 = 1 you divide by 3 to get a third

Answer:

1 hour

Step-by-step explanation:

To solve this, we can multiply 3 by [tex]\frac{1}{3}[/tex].

Therefore, [tex]\frac{1}{3}[/tex] of 3 hours is 1 hour.

Answer:

Step-by-step explanation:

25,584km

There are various online tools and calculators available to calculate Pythagorean triples, which are sets of three integers that satisfy the Pythagorean theorem a² + b² = c², with c being the hypotenuse of a right triangle.

To calculate Pythagorean triples online, you can use tools such as online Pythagorean triple calculators, which allow you to input the value of one of the sides of a right triangle and then automatically generate the values of the other two sides. Some online calculators also allow you to enter a range of numbers and generate a list of all the Pythagorean triples within that range.

Other tools include apps and software that can be downloaded onto your computer or mobile device. These tools are useful for solving problems in geometry, physics, and other fields that involve right triangles and the Pythagorean theorem.

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The correct statements are: B and C.

What is the linear functions?

linear functions, specifically comparing their rate of change and y-intercepts.

To compare the properties of Function A and Function B, we need to first determine the equations for both functions.

From the table, we can see that Function A has a rate of change of 3 and a y-intercept of 4. Therefore, the equation for Function A is y = 3x + 4.

To find the equation for Function B, we can use two of the given points to calculate its rate of change and y-intercept. Using the points (1, 2) and (4, 14), we get:

rate of change = (14 - 2) / (4 - 1) = 4

y-intercept = 2 - 4(1) = -2

Therefore, the equation for Function B is y = 4x - 2.

Now we can compare the properties of the two functions:

A. The rate of change of Function A is greater than the rate of change of Function B. False, since the rate of change of Function A is 3, which is less than the rate of change of Function B, which is 4.

B. The rate of change of Function A is less than the rate of change of Function B. True, since the rate of change of Function A is 3, which is less than the rate of change of Function B, which is 4.

C. The y-intercept of Function A is greater than the y-intercept of Function B. True, since the y-intercept of Function A is 4, which is greater than the y-intercept of Function B, which is -2.

D. The y-intercept of Function A is equal to the y-intercept of Function B. False, since the y-intercept of Function A is 4 and the y-intercept of Function B is -2.

E. The y-intercept of Function A is less than the y-intercept of Function B. False, since the y-intercept of Function A is 4, which is greater than the y-intercept of Function B, which is -2.

F. The rate of change of Function A is equal to the rate of change of Function B. False, since the rate of change of Function A is 3 and the rate of change of Function B is 4.

Hence, the correct statements are: B and C.

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Based on the currency exchange rate you gave, 1 British pound (GBP) is equal to 1.202639 American dollars (USD) as of February 20, 2023.

In other words, if you were to swap 1 GBP for USD, you would get back 1.202639 USD.

Again, it's crucial to remember that exchange rates are frequently susceptible to changes due to a variety of economic and political variables, and the real rate may be different at the time of your transaction.

Before performing any currency conversions or foreign transactions, it is usually a good idea to verify the current exchange rate.

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Even though dividing a fraction by a whole number might be challenging, it is simple to achieve with a few steps. By placing the full number above 1, you must first divide it into a fraction. After that, multiply the fraction you are dividing by the inverted version of the fraction. Lastly, simplify the response as much as possible.

For instance, to multiply 3/4 by 2:

Put 2 over 1, making it 2/1, to make it a fraction.

To get 1/2, invert 2/1.

To get 3/8, multiply 3/4 by 1/2.

Divide the numerator and denominator by 3 to get 1/4, which is the simplest representation of the fraction 3/8.

Hence, 1/4 is equivalent to 3/4 when divided by 2.

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c²=a²+b²

(51)²=(24)²+b²

2601=576+b²

2601-576=b²

2,025=b²

√2025=√b²

b= 45

the length of the other leg of the triangle is 45 cm

Triangle is a three-sided geometric shape which has three angles and three sides. The three sides of a triangle are typically referred to as the base, the height, and the hypotenuse. A triangle can be classified as either right, obtuse, or acute depending on the measure of its angles. Right triangles have one right angle, obtuse triangles have one obtuse angle, and acute triangles have three acute angles.

To find the volume of a triangular prism, you need to calculate the area of the triangular base and then multiply it by the height of the prism. First, calculate the area of the base by finding the length of the triangle's sides and then using the Heron's Formula. Then, multiply the area of the base with the height of the prism to get the volume of the triangular prism. For example, if the length of the sides of the triangle is 3, 4 and 5, then the area of the base is 6 and the height of the prism is 8, then the volume of the prism is 48.

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The length of the other leg of the triangle is 45 cm.

Triangle is a three-sided geometric shape which has three angles and three sides. The three sides of a triangle are typically referred to as the base, the height, and the hypotenuse. A triangle can be classified as either right, obtuse, or acute depending on the measure of its angles. Right triangles have one right angle, obtuse triangles have one obtuse angle, and acute triangles have three acute angles.

To find the volume of a triangular prism, you need to calculate the area of the triangular base and then multiply it by the height of the prism. First, calculate the area of the base by finding the length of the triangle's sides and then using the Heron's Formula. Then, multiply the area of the base with the height of the prism to get the volume of the triangular prism. For example, if the length of the sides of the triangle is 3, 4 and 5, then the area of the base is 6 and the height of the prism is 8, then the volume of the prism is 48.

According to Pythagoras theorem.

c² = a²+b²

(51)² = (24)²+b²

2601 = 576+b²

2601-576 = b²

2,025 = b²

√2025 = √b²

b = 45

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The compound interest at the end of 6 years is $1725.14

Compound interest is a type of interest that is calculated not only on the initial principal amount but also on any accumulated interest that has been added to the principal. In other words, the interest that is earned on the principal is added to the principal, and then interest is calculated on the new total.

The formula for compound interest compounded continuously is

A = Pe^rt

A = 1100e^(0.075 * 6)

A = $1725.14

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The quotient of 25 divided by 25,704 is approximately 0.00097 (rounded to five decimal places).

When splitting huge numbers, the task is divided into several sequential steps using the long division approach. The dividend is divided by the divisor, just like in conventional division problems, and the result is known as the quotient; occasionally, it also produces a remainder.

The long division for 25 divided by 25,704 is shown below:

code :

0.00097

-------

25704 | 25.00000

      0

      --

     250

     257

     ---

      -7

As a result, the result of 25 divided by 25,704 is almost 0.00097. (rounded to five decimal places).

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According to the model, -9 (7v + 9.7) = -63v - 87.3. The solution has been obtained by using area model.

What is an area model?

An area model is a rectangular graphic used in mathematics to multiply and divide two numbers or expressions. The length and breadth of the rectangle are determined by the factors, also known as the quotient and divisor.

We are given an expression as -9 (7v + 9.7).

Using area model,

-9 * 7v = -63v

Similarly,

-9 * 9.7 = -87.3

On combining both, we get

-9 (7v + 9.7) = -63v - 87.3

Hence, the value for the expression is -63v - 87.3.

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Water weighs 4.92892 grams in a US teaspoon. Thus, 1 g of water is equivalent to around 1/5 teaspoon.

The acronym "Tsp" stands for teaspoon, a volumetric measurement commonly used in baking and cooking. A "gram" is a measure of mass or weight. As a result, converting between tsp and grams is not possible.

The density of the material being measured determines how to convert teaspoons to grams. For instance, a teaspoon of water weighs around 5 grams, but a teaspoon of sugar weighs roughly 4 grams.

I'll do my best to estimate the substance's weight in grams if you tell me what it is that you are quantifying in teaspoons.

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91.6 grams of a 100 gram sample will remain radioactive after 2 hours. The solution has been obtained by using the concept of radioactive decay.

What is Radioactive decay?

Radioactive decay is the spontaneous destruction of an atomic nucleus in a radioactive substance that causes the emission of radiation from the nucleus. A parent nuclide in a radioactive process is one that decays, and a daughter nuclide is one that is created in the radioactive process.

We are given that a radioactive substance has a decay rate of 0.044 per hour.

Using the radioactive decay formula,

N(t) = N₀ [tex]e^{-kt}[/tex]

Initially, N = 100

k = 0.044

t = 2

So,

⇒N(t) = 100 * e⁽⁻⁰°⁰⁴⁴ ˣ ²⁾

⇒N(t) = 91.5761

⇒N(t) = 91.6

Hence, 91.6 grams of a 100 gram sample will remain radioactive after 2 hours.

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The second statement is the most commonly used way of writing 223 as a combination of a whole number and a fraction, but there are many other ways to express it.

What is a fraction ?

A fraction is a mathematical concept used to represent a part of a whole. It is represented by two numbers separated by a line, called a fraction bar or a solidus. The number above the line is called the numerator, and the number below the line is called the denominator

223 can be written as:

223 wholes and 0/1 as the fraction

222 wholes and 1/1 as the fraction

221 wholes and 2/1 as the fraction

...

0 wholes and 223/1 as the fraction

Note that

Therefore, the second statement is the most commonly used way of writing 223 as a combination of a whole number and a fraction, but there are many other ways to express it.

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The decimal 5.5 in simplified fraction can be expressed as  11/2 .

A Fraction is defined as a mathematical expression that represents a part of a whole or a ratio between two quantities .

The decimal 5.5 can be written as 5.5/1 ;

In order to remove the decimal, we multiply the numerator and denominator by 10, which moves the decimal point one place to the right:

⇒ 5.5/1 = 55/10

Since the numerator 55 and denominator 10 , have a common factor of 5,

So , we divide both the numerator and denominator by the common factor "5" ;

We get ;

⇒ 55/10  = 11/2 ;

Therefore, the decimal 5.5 is equivalent to the fraction 11/2 .

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The given question is incomplete , the complete question is

How to convert the decimal 5.5 as a fraction ?

Kirk and martin, two experimental physicists, want to change the diameter of a laser beam while keeping its rays propagating parallel so the value of distance l is l = fs - fa.

In a partly ionized plasma with several species, we investigate the propagation of electromagnetic waves (or incompressible waves with little thermal pressure) through the magnetic field. Due of variances in mass and density, each species responds to and hence influences electromagnetic field disturbances differently.

For the first lens , ray of light from distant object are parallel , so image will formed at the focal length of first lens.

For second lens,

object distance (u) = fa + l

image distance (v) = ∞

By lens formula,

1/v - 1/u = -1/fs

u = fs

fa + l = fs

l = fs - fa

Collisions between all of the species complicate the process even further. Based on a multi-fluid treatment and Faraday's and Ampere's laws, including the displacement current, a linear analysis is used to derive the dispersion relation of parallel propagation covering a wide range of frequencies, from magnetohydrodynamics (MHD) waves to light waves, with an arbitrary combination of multiple positively charged species, negatively charged species, and neutral species.

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Complete question:

Kirk and martin, two experimental physicists, want to change the diameter of a laser beam while keeping its rays propagating parallel.

For this set up to work, what must be the distance l ?

Answer:

I think the system has infinite solutions.

Step-by-step explanation:

Answer:

Step-by-step explanation:

120.96