A book costs $25. It goes on sale for $22. What
47 the percent of decrease?
A
14%
B
88%
C
12%
D
86%

the answer is 60

Step-by-step explanation:

10+5=15 x 3 45+ 15 =60

Option C : At age 32, Angel's intelligence score wil be 110 ,  While  her score at age 16  be 110 .

To calculate IQ, take a person's mental age, divide it by chronological age, then multiply that number by 100 .

An IQ test assesses a variety of cognitive skills and yields a score that is meant to be used as a gauge of a person's potential and intellectual process. Among psychological testing, IQ tests are frequently used. The organisation Mensa International, which serves persons with IQs in the top 2%, defines IQ as "a form of standard score that reflects how far above, or how far below, his/her peer group an individual stands in mental capacity."

There are many different intelligence tests available, and they might have very distinct contents. Three Many medications are made expressly to be given to children, but some are used for adults. There are several uses for IQ tests, including Educational assessment and placement,Assessment and diagnosis of intellectual disability ,Cognitive research,Job candidate evaluation.

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Answer:

$4.40

Step-by-step explanation:

To find the cost of each coffee in dollars, you can use the inequality:

2.39 + 4c < 20

This inequality states that the total cost of the cookie and the four coffees is less than $20.

To solve for c, the cost of each coffee in dollars, you can start by combining like terms on the left-hand side of the inequality:

2.39 + 4c = 20 - 2.39

4c = 17.61

Then, divide both sides of the inequality by 4 to solve for c:

c = 17.61 / 4

c = $4.40

So, the cost of each coffee in dollars is $4.40.

Answer:

y = -X + 3

Step-by-step explanation:

X + Y = 3

Y = -X + 3 (in the form of Y = mX + c, where m is the gradient of the graph and c is the y intercept of the graph)

Through observation,

gradient = -1

y-intercept = 3

The number that goes beneath the radical symbol is 40.

To find the distance between the two points (-4,3) and (2,5), you can use the distance formula:

distance = √[(x2 - x1)^2 + (y2 - y1)^2]

Plugging in the values, you get:

distance = √[(2 - (-4))^2 + (5 - 3)^2]

Simplifying the expression, you get:

distance = √[6^2 + 2^2]

Which simplifies to:

distance = √[36 + 4]

Simplifying further, you get:

distance = √40

So the distance between the two points is √40. The number that goes beneath the radical symbol is 40.

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Answer:

40

Step-by-step explanation:

calculate the distance d using the distance formula

d = [tex]\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2 }[/tex]

with (x₁, y₁ ) = (- 4, 3 ) and (x₂, y₂ ) = (2, 5 )

d = [tex]\sqrt{(2-(-4))^2+(5-3)^2}[/tex]

  = [tex]\sqrt{(2+4)^2+2^2}[/tex]

  = [tex]\sqrt{6^2+4}[/tex]

  = [tex]\sqrt{36+4}[/tex]

  = [tex]\sqrt{40}[/tex]

There are 4 moles of silver equivalent to 2.408 x 1024 atoms.

This can be determined through the use of Avogadro's number, which is the number of atoms or molecules in one mole of a substance. Avogadro's number is equal to 6.022 x 10^23 atoms/molecules per mole. By dividing the number of atoms by Avogadro's number, we can determine the number of moles. In this case, 2.408 x 1024 atoms / 6.022 x 10^23 atoms/mole = 0.04 moles. Since there are 4 moles in 1 mole of silver, this means that there are 4 moles of silver equivalent to 2.408 x 1024 atoms. This can be expressed as 4 mol Ag = 2.408 x 1024 atoms.

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The radical form of the number √ ( - 27 ) is given by the equation A = 3i√3

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the value of A is

Let the number be represented as n

The value of n = √( -27 )

Now , the value -1 can be represented as the complex number i

where i² = 1

So , the number n can be written as

A = √ ( 3i )² 3

A = √9i² (3)

A = √27i²

A = √-27

On simplifying the equation , we get

A = 3i√3

Therefore , the value of A is A = 3i√3

Hence , the equation is A = 3i√3

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The three numbers are 1) 6,6,5. Option A

Generally, To determine if three numbers can be the sides of a triangle, we can use the triangle inequality theorem, which states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

For cases of 1) 6,6,5:

6 + 5= 11, which is greater than 6, so these three numbers can be the lengths of the sides of a triangle.

For the case of 2) 3,10,7:

3 + 7= 13, which is not greater than 10,  so these three numbers cannot be the lengths of the sides of a triangle.

For the case of 3) 7,2,5:

5+ 2= 7, which is not greater than 7, so these three numbers cannot be the lengths of the sides of a triangle.

For the case of 4) 2,8,5:

2 + 5= 7, which is not greater than 8, so these three numbers cannot be the lengths of the sides of a triangle.

Therefore, the three numbers is 1) 6,6,5

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Answer:

1)12+c

2)12-c

3)12/c

4)12c

The resulting polynomial is 1.3t^3 - 0.2t^2 - 42t + 8.

To add the polynomials, you should line up the terms with the same degree.

For the first polynomial, the coefficient of the term with the highest degree is 1.3.

For the second polynomial, the coefficient of the term with the highest degree is 8.

Therefore, the term with the highest degree in the result will be 1.3t^3 + 8.

The next highest degree in the first polynomial is t^2, and the coefficient of this term is 0.4.

The next highest degree in the second polynomial is also t^2, and the coefficient of this term is -0.6.

Therefore, the term with the next highest degree in the result will be 0.4t^2 - 0.6t^2.

The next highest degree in the first polynomial is t, and the coefficient of this term is -24.

The next highest degree in the second polynomial is also t, and the coefficient of this term is -18.

Therefore, the term with the next highest degree in the result will be -24t - 18t.

So, the resulting polynomial is:

(1.3t^3 + 8) + (0.4t^2 - 0.6t^2) + (-24t - 18t)

= 1.3t^3 + 0.4t^2 - 24t + 8 - 0.6t^2 - 18t

= 1.3t^3 - 0.2t^2 - 42t + 8

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The Ortega family will have a fraction of 11/16 amount of confetti left to use next year.

We shall convert the fractions to have similar denominators and simply apply subtraction for the numerators as follows:

fraction of confetti used = 1/4

pound of confetti made = 15/16

LCM of 4 and 16 is 16 so;

fraction of confetti used = 1/4 × 16/16

fraction of confetti used = 4/16

amount of confetti left = (15 - 4)/16

amount of confetti left = 11/16

Therefore, the Ortega family will have the fraction of 11/16 of confetti left.

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The expression that can be used to find the money Aurora has left is x+35= 40

A linear expression is an algebraic statement where each term is either a constant or a variable raised to the first power. In other words, none of the exponents can be greater than 1. For example, x² is a variable raised to the second power, but x is a variable raised to the first power.

Let x represent the money left with Aurora and the end of the week.

He spent $7 per day for 5 days. Therefore the total money spent is $7×5 = $35

Therefore the money left at the end of the week = x = 40-35

It can be written as x+35 = 40

Therefore the expression that can be used to find the amount of money left is x+35 = 40

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Answer:

All values of x are possible.

Step-by-step explanation:

3x-6+1=-2x-5+5x

3x - 5 = 3x - 5               [Simplify by combining like terms on both sides]

Both sides of this equation are the same.  There is no single value of x that can be identified,  All values of x are possible.  The only thing that can be said about this equation is "TRUE."

The differences that exists between r and p are:

When points in a scatter plot are plotted against a linear regression line based on those points, as in the example when solving for cumulative savings over time, the sample correlation coefficient (r) is a measurement of how closely the points are associated.

The correlation coefficient (ρ) is a metric for estimating how closely two variables' movements are related. The Pearson product-moment correlation is used to calculate the most popular correlation coefficient, which is used to assess the linear relationship between two variables.

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The equation with 'n' as the independent variable is m = -2n - 13.

To rearrange the equation so that n is the independent variable, you can start by moving all of the terms with n on one side of the equation and all of the other terms on the other side.

You can start by subtracting 1 from both sides of the equation to get

m = -2(n + 6) - 1.

Then, you can distribute the -2 on the right side of the equation to get

m = -2n - 12 - 1.

Finally, you can combine the constants on the right side of the equation to get m = -2n - 13.

Therefore, the equation with 'n' as the independent variable is m = -2n - 13.

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The possible solutions for the stones Emily may buy as required in the task content are; ( 4, 0) , ( 0, 5 ) and ( 7.5, 0).

It follows from the task content that the possible solutions to Emily's turquoise stone purchased situation be determined.

Let the number of $4 stones Emily can buy be; x

Let the number of $6 stones Emily can buy be; y.

Therefore, the inequalities which correctly represents the situation are;

x + y ≥ 4

4x + 6y ≤ 30.

By solving the given inequalities graphically; it follows that the solutions sets area enclosed by the point coordinates; ( 0, 4 ), ( 0, 5 ), ( 4, 0 ) and ( 7.5, 0 ).

On this note, the possible solutions for the number of $4 and $6 stones she can buy are; ( 4, 0) , ( 0, 5 ) and ( 7.5, 0).

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The sum of the number in the binary form is 1001010 and the values of m is 0 and n is 1.

Binary Number System: A binary number is a number that is stated in the binary system or base 2 numeral system, according to mathematics. It uses the symbols 1 (one) and 0 to represent different numeric values (zero). The notation with 2 as a radix is known as the base-2 system.

The binary number can be expressed in decimals as follows:

[tex]11111_2 = 1*2^4 + 1*2^3+1*2^2+ 1*2^1+1*2^0\\\\11111_2= 31\\\\10000_2= 1*2^4\\\\10000_2 = 16[/tex]

The sum of all the numbers is:

27 + 31 + 16 = 74

To convert the decimal in the binary form, divide the number continuously and note the remainder until it cannot be divided any further.

74 ÷ 2= 37= 0

37 ÷ 2 = 18 = 1

18 ÷ 2 = 9 = 0

9 ÷ 2 = 4 = 1

4 ÷ 2 = 2 = 0

2 ÷ 2 = 1 = 0

1 ÷ 2 = 0 = 1

So, the number in the binary form is 1001010 and the value of m is 0 and n is 1.

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If 78 apples are in the tub, there are 6 apples in each bag

A division is a process of splitting a specific amount into equal parts. For example, we can divide a group of 40 members into 4 groups of 10 members each or 10 groups of 4 members each, Or creating 2 groups of 20 members or 20 groups of 2 members.

This means that when dividing 40 by 10 we get 4 and when dividing 40 by 4 we get 10.

Emily sets up a tub by buying 13 bags of apple. The total apple in the tub when the 13 bags were poured are 78 apples.

Therefore to find the number of apple in each bad, we divide the total number of apple in the tub by the number of bags.

= 78/13 = 6 apples per bag

Therefore the number of apple in each bag is 6.

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The overall average for the entire class was 85.08. The solution is obtained using the concept of arithmetic mean.

What is arithmetic mean?

A number is derived by dividing the total number of values in a set by the total number of elements in the set, and this is what is meant by the term "arithmetic mean."

We are given that the average score of the 10 girls was 88.

This means that the total score of girls was 10*88 = 880

Also, the average score of the 14 boys was 83.

This means that the total score of boys was 14*83 = 1162

The total number of students in the class = 10+14 = 24

The combined score of boys and girls = 880 + 1162 = 2042

Thus, the overall average for the entire class was

2042/24 = 85.08

Hence, the overall average for the entire class was 85.08.

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The remainder theorem states that if a polynomial (px) is divided by a factor (x+3), the remainder is equal to the value of the polynomial when x is equal to the opposite of the factor's coefficient.

In this case, when x is equal to -3, the polynomial becomes p(-3) = 2(-3)^3 + 4(-3)^2 - 2(-3) + 12 = -36 + 36 - 6 + 12 = 6.

Since the remainder is 6, x+3 is not a divisor of px.

The remainder theorem can be used to determine that x+3 is not a divisor of px=2x3+4x2-2x+12, since the remainder when the polynomial is divided by the factor is 6.The remainder theorem states that if a polynomial (px) is divided by a factor (x+3), the remainder is equal to the value of the polynomial when x is equal to the opposite of the factor's coefficient.

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( x + 3 ) is the divisor of the given polynomial p(x) = 2x³ + 4x² -2x + 12 using remainder theorem

As given in the question,

Given polynomial is equal to :dd

p(x) = 2x³ + 4x² -2x + 12

Check whether ( x + 3 ) is s divisor of the given polynomial p(x) using remainder theorem we get,

Divisor is given by : x + 3

Apply remainder theorem we get,

p( -3 ) = 2( -3 )³ + 4 ( -3 )² - 2( -3 ) + 12

⇒ p ( -3 ) = 2(-27) + 4 (9) + 6 + 12

⇒ p(-3) = -54 + 36 + 18

⇒ p(-3) = 0

Therefore, by using the remainder theorem we conclude that ( x + 3 ) is the divisor of the given polynomial p(x).

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Answer:

1

Step-by-step explanation:

Using the Pythagorean theorem, the length of the third side is [tex]\sqrt{(\sqrt{5})^2-2^2}=1[/tex].

The p-value of 0.017 suggests that there is a statistically significant difference in the proportion of high school seniors who own their own cars, indicating that more high schoolers now have cars than before.

The p-value of 0.017 indicates that there is a statistically significant difference between the proportion of high school seniors who own their own cars today compared to a decade ago. This suggests that there is a real, measurable difference in the number of high school seniors who own cars, meaning that it is reasonable to conclude that more high schoolers have cars now than they did a decade ago. This conclusion is supported by the statistical significance of the data, which indicates that the difference between the proportions is not likely due to chance. It is also likely that changes in technology and access to transportation options have contributed to the increase in the proportion of high school seniors who own cars.

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There are  2.97 * 10^9 ways that the colors can be chosen.

We talk about the term permutation when we have to make a selection and the order of the selection has been taken to be important. In that case the order bcd would be different from the order cbd.

Hence, we could be able to use the formula for the permutation of the colors that are in the box and we would have the result as the use of the formula;

P = n!/ (n - r)!

n in this case would be the number of the boxes that we have and we would thus have;

P = 65!/(65 - 5)!

P = 65 * 64 * 63 * 62 * 61 * 60!/60!

P = 2.97 * 10^9 ways

Thus, in the selection of the colors from the boxes, we can see that it is possible to do the selection using permutation in about  2.97 * 10^9 ways.

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Missing parts;

A company that makes crayons is trying to decide which 5 colors to include in a promotional mini-box of 5 crayons. The company can choose the 5 mini-box colors from its collection of 65 colors. How many mini-boxes are possible?

The correct answer is option a. Prokaryotes contain a single-stranded circular chromosome, and eukaryotes contain double-stranded linear chromosomes.

Prokaryotic organisms, such as bacteria, have a single chromosome that is circular and made up of a single strand of DNA. This chromosome is located in the cytoplasm, and it is not enclosed by a nuclear envelope.

Eukaryotic organisms, such as plants and animals, have multiple chromosomes that are linear and made up of two strands of DNA. These chromosomes are located in the nucleus, and they are enclosed by a nuclear envelope. Each chromosome consists of one long DNA molecule and associated proteins.

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The number of hours it take if she bikes at an average rate of 8 miles per hour is 1.25 hour.

Average speed is calculated by dividing a quantity by the time required to obtain that quantity. Meters per second is the SI unit of speed. The formula S = d/t, where S is the average speed, d is the total distance, and t is the total time, is used to determine average speed.

Given that, Kiran's aunt plans to bike 10 miles.

1. She bikes at an average rate of 8 miles per hour

We know that, Time=Distance/Speed

= 10/8

= 1.25 hour

2. She bikes at an average rate of r miles per hour

Now, time =10/r hours

3. Kiran wants to join his aunt but only has 45 minutes to exercise.

Now, distance =Speed×Time

= 8×45/40

= 6 miles

4. Average rate need to be if they have t hours

Average rate =(10+6)/(t

= 16/t miles per hour.

Therefore, the number of hours it take if she bikes at an average rate of 8 miles per hour is 1.25 hour.

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"Your question is incomplete, probably the complete question/missing part is:"

Kiran's aunt plans to bike 10 miles.

1. How long will it take if she bikes at an average rate of 8 miles per hour?

2. How long will it take if she bikes at an average rate of r miles per hour?

3. Kiran wants to join his aunt but only has 45 minutes to exercise. What will him to finish on time?

4. What will their average rate need to be if they have t hours to exercise?

Yes, a dilation will always preserve both the orientation of a figure and the orientation of the vertices.

Resizing an item uses a transformation called dilation. Dilation is used to enlarge or shorten the structures. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size. The initial form should be stretched or contracted during a dilatation.

Given:

When we dilate, we change the size.

Imagine it as a zooming in and out process.

As a result, the size will be different, but the form and orientation will remain the same.

So, a dilation will always preserve both the orientation of a figure and the orientation of the vertices.

Therefore, the statement is true.

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The slope is -7/10, so the equation would be y = -7/10x.

This question uses the slope of a line formula to calculate the slope.

The formula states that the slope is equal to the change in the y-coordinates divided by the change in the x-coordinates.

Count the number of rises and falls in the line. In this equation, there is a rise of 4, a fall of 3, a rise of 2, and a fall of 1.

Calculate the slope by subtracting the number of rises from the number of falls and dividing by the total number of rises and falls.

In this equation, the slope is (-3 - 4)/(4 + 3 + 2 + 1) = -7/10.

Write the equation in the correct form of y = mx.

In this equation, the slope is -7/10, so the equation would be y = -7/10x.

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Answer:

x-5+1

Step-by-step explanation:

This equation shows x as the quantity of the number, hope this helps!