Sally has made a cake (as shown on the right) and frosted the top and all sides but not the bottom of the cake. She cuts the cake into 9 pieces. How many pieces are frosted on only one side?

Answer:

8[tex]\frac{29}{40}[/tex]

Step-by-step explanation:

The least common multiply is 40

[tex]\frac{4}{5}[/tex] x [tex]\frac{8}{8}[/tex] = [tex]\frac{32}{40}[/tex]

2 [tex]\frac{3}{10}[/tex] x [tex]\frac{4}{4}[/tex] = 2 [tex]\frac{12}{40}[/tex]

5 [tex]\frac{5}{8}[/tex] x [tex]\frac{5}{5}[/tex] = 5 [tex]\frac{25}{40}[/tex]

Now that we have a common denominator, add these numbers together

[tex]\frac{32}{40}[/tex] + 2 [tex]\frac{12}{40}[/tex] + 5 [tex]\frac{25}{40}[/tex]

7 [tex]\frac{69}{40}[/tex]

7 + [tex]\frac{40}{40}[/tex] + [tex]\frac{29}{40}[/tex]  I broke up [tex]\frac{69}{40}[/tex] because I know that [tex]\frac{40}{40}[/tex] equals 1

8 [tex]\frac{29}{40}[/tex]

Helping in the name of Jesus.

The correct option- B. the subtraction property of equality is used to arrive at the conclusion. If x + 8 = 10, then x = 2.

According to the equality's feature of subtraction, equality is unaffected when the same amount is subtracted from both sides of an equation.

Given data:

x + 8 = 10

To find the value of x, subtract 8 from both sides:

x + 8 -8 = 10 - 8

x = 2

Thus, the subtraction property of equality is used to arrive at the conclusion. If x + 8 = 10, then x = 2.

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Correct question:

Select the property of equality used to arrive at the conclusion. If x + 8 = 10, then x = 2.

A. the multiplication property of equality

B. the subtraction property of equality

C. the division property of equality

The probability that the student, who ran out of time on a multiple choice exam and randomly guessed the answers for two problems, answered both of the problems correctly is ⁹/₂₅.

Probability refers to the likelihood of an expected outcome occurring out of many possible outcomes.

Probability is computed as the quotient of expected outcome over total outcomes.

The number of questions left = 2

The number options of for each question = 5

Since there are 5 options for each question, 4 of which are wrong, the probability of getting both wrongs is:

⁴/₅ x ⁴/₅ = ¹⁶/₂₅ = 0.64 or 64%

Therefore, probability of getting both questions correct is 36% (1 - 64%) or ⁹/₂₅ (1 -  ¹⁶/₂₅).

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Answer:

  y = -x +3

Step-by-step explanation:

You want the slope-intercept equation of the line with the same intercept as -3y = -9 +3x, and the same slope as -2x -2y = -8.

The slope-intercept form of the equation of a line is ...

  y = mx +b . . . . . where m is the slope, and b is the y-intercept

For the given equations, we can put them in this form to find the desired parameters.

  -3y = -9 +3x

  y = -x +3 . . . . . . . . . . divide both sides by -3

We observe that the y-intercept is +3, which we will need for our answer.

The slope-intercept form of the second equation is ...

  -2x -2y = -8

  x + y = 4 . . . . . . . . . . divide by -2

  y = -x +4 . . . . . . . . . . subtract x

We observe that the slope (coefficient of x) is -1, which we will need for our answer.

We want the equation of the line with slope -1 and y-intercept 3. It is ...

  y = -x +3 . . . . . . . . . . same as the equation of the first line

__

Additional comment

The slope-intercept equation (green) is plotted using dots, so that you can see it is coincident with the line described by the first equation (red). Parallel lines have the same slope, so our desired line must be parallel to the blue line. (It is.)

1) consumers are willing to buy more of a good at a lower price than at a higher price  Option B

2) All of these

3) All of these

An economic theory known as the law of demand states that, all other things being equal, if a good or service's price rises, consumers will demand fewer units of it, and vice versa.

Price and quantity demanded are inversely related, to put it another way. This is a fundamental concept in economics and plays a key role in shaping market behavior and pricing strategies.

The price system is a way of adjusting the balance between the forces of supply and demand. A key advantage of the corporate form of business organization is the ability to raise significant amounts of financial capital.

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Step-by-step explanation:

2,36,53,58

Two place value system:

Twenty-three lakh, sixty-five thousand, three hundred and fifty-eight

Three place value system:

Two crore, thirty-six lakh, fifty-three thousand, three hundred and fifty-eight

3,42,82,627

Two place value system:

Thirty-four million, twenty-eight thousand, six hundred and twenty-seven

Three place value system:

Three crore, forty-two lakh, eighty-two thousand, six hundred and twenty-seven

8,70,13,569

Two place value system:

Eighty-seven million, thirteen thousand, five hundred and sixty-nine

Three place value system:

Eight crore, seventy-one lakh, thirty-five thousand, five hundred and sixty-nine

9,01,50,028

Two place value system:

Ninety million, one lakh, fifty thousand, twenty-eight

Three place value system:

Nine crore, one lakh, fifty thousand, twenty-eight

8,15,52,101

Two place value system:

Eighty-one million, five hundred and fifty-two thousand, one hundred and one

Three place value system:

Eight crore, fifteen lakh, fifty-two thousand, one hundred and one

9,91,60,001

Two place value system:

Ninety-nine million, one lakh, sixty thousand, one

Three place value system:

Nine crore, ninety-one lakh, sixty thousand, one

The range of the function y=e⁴ˣ is y>0

The range of the function y=e⁴ˣ is the same as the range of any exponential function:

y > 0

The function can take on any positive value, but will never be 0 or negative.

It has a horizontal asymptote of y=0.

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Answer: ∠EBJ

Step-by-step explanation:

Starting Angle: ∠EBH

Possible Supplement: ∠EBJ

Based on the information in the equation, y = -24x + 648, the TRUE statement is B) Before practice, there are 648 ounces of sports drinks in the cooler.

An equation is an algebraic statement showing that two or more mathematical expressions are equal or equivalent.

The equality or equivalence of an equation is depicted using the equal symbol (=).

Mathematical expressions do not use the equal symbol, but they combine variables with constants, numbers, and values using mathematical operands.

Let the number of ounces in the cooler after practice = y

Let the number of players at the practice who take drinks from the cooler = x

y = -24x + 648

Thus, 648 represents the number of drinks before practice while -24x represents the number of drinks taken by players, making Option B true.

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The probability that she will hire a woman for the two positions is given as follows:

1/4.

A probability is calculated as the division of the desired number of outcomes by the total number of outcomes in the context of a problem/experiment.

From the last node, the total number of outcomes is given as follows:

4.

The desired outcomes are Women on the first node and women on the second node, which is one outcome. (the last outcome).

Hence the probability is given as follows:

p = 1/4.

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Answer:

10. x=82 11.x=25 9. p=225

The volume is D) 84[tex]m^3[/tex].

What is volume?

The space taken up by any three-dimensional solid constitutes a  volume, to put it simply. A cube, cuboid, cone, cylinder, or sphere can be one of these solids. Cubic units are used to measure the volume of solids. The volume will be given in cubic metres, for instance, if the dimensions are given in metres.

Here the given rectangular prism length = 7m , Width = 4m and Height = 3m.

Now using Volume of rectangular prism formula then,

V = lwh cubic unit.

=> V = 7×4×3

=> V = 84[tex]m^3[/tex]

Hence the volume is D) 84[tex]m^3[/tex].

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The area of the forest after 13 years is  1990.08 [tex]km^2[/tex].

What is exponential decay?

The term "exponential decay" in mathematics refers to the process of a constant percentage rate reduction in an amount over time. It can be written as y=a(1-b[tex])^x[/tex], where x is the amount of time that has passed, an is the initial amount, b is the decay factor, and y is the final amount.

Here initial area a = 3500[tex]km^2[/tex] ,

Rate of decay = 4.25%= 4.25/100 = 0.0425

Now using exponential decay formula then,

=> [tex]y=a(1-b)^x[/tex] where x=13 years .

=> y = [tex]3500(1-0.0425)^{13}[/tex]

=> y = [tex]3500(0.9575)^{13}[/tex]

=> y = 1990.08 [tex]km^2[/tex]

Hence the area of the forest after 13 years is  1990.08 [tex]km^2[/tex].

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Answer:

a) $299.60

b) $337.05

c) Nicole would pay more at the store

Step-by-step explanation:

a) 10% of $749 = $74.90

60% = ($74.90 x 6) = $449.40

$749 - $449.40 = $299.60

b) 10% = $74.90

50% = $374.50

$749 - $374.50 = $374.50

10% of $374.50 = $37.45

$374.50 - $37.45 = $337.05

The answers are A = 46% and B = 20%.

Given that, a table of data, each cell in the table shows the number of cars in that category.

A) The probability that the car's total repair cost is less than $10000 =

86 / (86+35+67) x 100 = 86/188 x 100 = 46%

B) The probability that the car's purchase was more than $40,000 =

40 / (40+86+71) x 100 = 40/197 x 100 = 20%

Hence, the answers are A = 46% and B = 20%.

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If one flyer is  3.0 × 10⁻³ inches thick, the stack of 1.25 × 10³ flyers has a thickness of 3.75 inches.

To find the thickness of a stack of flyers, we need to multiply the thickness of a single flyer by the number of flyers in the stack. In this case, the thickness of a single flyer is given as 3.0 × 10⁻³ inches, and the number of flyers in the stack is 1.25 × 10³.

So, the thickness of the stack can be calculated as:

Thickness of stack = Thickness of a single flyer x Number of flyers in the stack

Thickness of stack = 3.0 × 10⁻³ inches x 1.25 × 10³

Thickness of stack = (3.0 x 1.25) × (10⁻³ × 10³) inches

Thickness of stack = 3.75 inches

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We can see here that the difference in the areas of the polygons shown is: 3x + 1.

A polygon is a two-dimensional geometric object that is made up of a finite number of sides that are connected end to end to create a closed shape.

We can find the difference in the areas of the polygons shown in the following way:

Area of Polygon 1: A = x + 5

Area of Polygon 2: A = 4x - 6

Finding their difference, we have:

(4x - 6) -  (x + 5)

= 4x + 6 - x - 5

Collecting like terms, we have:

= 4x - x + 6 - 5

= 3x + 1

Thus, we see here that the difference in the areas of the polygon is =  

3x + 1

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The statement that best supports the information in the box plots is: D. the interquartile range value of the data for men 20 - 40 years old is greater than that of men of 50 - 70 years old.

The interquartile range of a data set is the difference between the values that are located on both edges of the rectangular box that is displayed in a box plot.

Interquartile range for the men between 20 - 40 years old = 150 - 110 = 40

Interquartile range for the men between 50 - 70 years old = 125 - 95 = 30

This shows that, D. the interquartile range value of the data for men 20 - 40 years old is greater than that of men of 50 - 70 years old.

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Factor of the equation are,

⇒ p (p + 2) - q (q + 6) - 8

We have to given that;

The expression is,

⇒ p² + 2p - 8 - q² - 6q

Now, We can factor as;

⇒ p² + 2p - 8 - q² - 6q

⇒ p (p + 2) - 8 - q (q + 6)

⇒ p (p + 2) - q (q + 6) - 8

Thus, Factor of the equation are,

⇒ p (p + 2) - q (q + 6) - 8

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Using the laws of multiplication, we can find that after the 4th day the unicorn population of the park is 405.

The fundamental concept of repeatedly adding the same number is represented by the process of multiplication. The results of multiplying two or more numbers are known as the product of those numbers, and the factors that are multiplied are referred to as the factors.

In the question,

Let the unicorn population be = x.

Now as per the question,

It triples every day.

The function will be = 3x.

The starting unicorn population is 5.

After the 1st day it will get tripled and become 3 × 5 = 15.

After the 2nd day the unicorn population will be 3 × 15 = 45.

After the 3rd day, 3 × 45 = 135.

Finally, after the 4th day, the unicorn population will be = 3 × 135 = 405.

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3.2 x 10^3  is considered to be a rational number.

A rational number is a numerical value expressed as a ratio between two non-zero integers. If any given number can be appropriately displayed in the form of 'a/b,' where both 'a' and 'b' guarantee integer input, it would signify that this specified number adheres to the classification of being labeled as rational.

As we can see from the given number of 3.2 x 10^3, when we write the number after solving it, we have:

3.2 x 10 ^ 3 = 3 .2 x 1, 000

= 3, 200

This can be expressed as 3, 200 / 1 so this is a rational number.

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The concept of Statistical significance as well as practical significance are known to be two different concepts in statistics.

Statistical significance refers to unlikely results not due to chance. P-values are utilized for ascertaining the statistical importance of a particular result by gauging the likelihood of procuring exceptional outcomes under the assumption that the null hypothesis holds true. A significance level of 0.05 or less for the p-value is deemed as statistically meaningful.

Since the Psychology instructor found SAT scores and amount of money carried had a correlation coefficient of r = 0.07 with a p-value of 0.001, showing a significant correlation. The chance of getting a correlation coefficient of 0.07 or greater, if no correlation exists in the population, is very low.

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Answer:

is a measure of the average absolute distance between each data value and the mean of a data set.

The coordinates of the vertices of the triangle A''B''C'' after the two successive dilations are (3 times the x-coordinate and 3 times the y-coordinate of the original triangle's vertices).

To find the coordinates of the vertices of the dilated triangle A''B''C'' after two successive dilations, first with a scale factor of 4 and then with a scale factor of 3/4.

Firstly, Apply the first dilation with a scale factor of 4 to the original triangle ABC, with a center of dilation at the origin. This can be done by multiplying each coordinate of the original triangle by 4.

The coordinates of the dilated triangle A'B'C' after the first dilation would be;

A' = (4 × x-coordinate of A, 4 × y-coordinate of A)

B' = (4 × x-coordinate of B, 4 × y-coordinate of B)

C' = (4 × x-coordinate of C, 4 × y-coordinate of C)

Now, we apply the second dilation with a scale factor of 3/4 to the dilated triangle A'B'C', again with a center of dilation at the origin. This can be done by multiplying each coordinate of A'B'C' by 3/4.

The coordinates of the dilated triangle A''B''C'' after the second dilation would be;

A'' = ((3/4) × x-coordinate of A', (3/4) × y-coordinate of A')

B'' = ((3/4) × x-coordinate of B', (3/4) × y-coordinate of B')

C'' = ((3/4) × x-coordinate of C', (3/4) × y-coordinate of C')

Plugging in the values of A', B', C' obtained from the first dilation, we get;

A'' = ((3/4) × 4 × x-coordinate of A, (3/4) × 4 × y-coordinate of A)

B'' = ((3/4) × 4 × x-coordinate of B, (3/4) × 4 × y-coordinate of B)

C'' = ((3/4) × 4 × x-coordinate of C, (3/4) × 4 × y-coordinate of C)

Simplifying further, we get;

A'' = (3 × x-coordinate of A, 3 × y-coordinate of A)

B'' = (3 × x-coordinate of B, 3 × y-coordinate of B)

C'' = (3 × x-coordinate of C, 3 × y-coordinate of C)

Therefore, the  coordinates of the vertices of the triangle A''B''C'' after the two successive dilations are (3 times the x-coordinate and 3 times the y-coordinate.

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Therefore, the answer is (B) 5 hours. We can start by finding out how long it takes Kylie to fill one 2-ounce container. we can get by forming equation .

what is equation ?

In mathematics, an equation is a statement that two expressions are equal. An equation can contain variables, constants, and mathematical operations like addition, subtraction, multiplication, division, exponents, and roots.

In the given question,

We can start by finding out how long it takes Kylie to fill one 2-ounce container. To do this, we can set up a proportion:

75 containers / 50 minutes = 1 container / x minutes

Solving for x, we get:

x = (50 minutes) / (75/1) = 0.67 minutes per container

Now we can use this information to find how long it will take Kylie to fill 450 containers:

450 containers × 0.67 minutes per container = 301.5 minutes

So it will take Kylie 301.5 minutes to make the slime and fill up 450 containers. We can convert this to hours by dividing by 60:

301.5 minutes / 60 minutes per hour = 5.025 hours

Rounding to the nearest hour, we get 5 hours.

Therefore, the answer is (B) 5 hours.

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Sure, I'd be happy to help you calculate these percentages! Here are the solutions:

- 100% of 30 = 30

- 40% of 60 = 0.4 x 60 = 24

- 20% of 80 = 0.2 x 80 = 16

- 40% of 50 = 0.4 x 50 = 20

- 80% of 20 = 0.8 x 20 = 16

- 50% of 30 = 0.5 x 30 = 15

- 60% of 80 = 0.6 x 80 = 48

- 60% of 10 = 0.6 x 10 = 6

- 90% of 70 = 0.9 x 70 = 63

I hope that helps! Let me know if you have any other questions.

It will take 2.48 hours for the number of bacteria to reach 3500.

In order to find number of hours to take for the number of bacteria to reach 3500, we can set the function equal to 3500 and solve for h.

The function given is P(h) = 2800e^(0.09h). So, plugging the values of 3500, we will get:

3500 = 2800e^(0.09h)

Dividing both sides by 2800, we get:

e^(0.09h) = 3500/2800

Taking the natural logarithm of both sides, we get:

0.09h = ln(3500/2800)

h = (ln(3500/2800))/0.09

h = 0.22314355131/0.09

h = 2.47937279233

h = 2.48 hours

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The value of N in the algebraic equation is 600.

An algebraic equation is when two expressions are set equal to each other, and at least one variable is included.

If to 15% of 20% of 5N we add 30% of 50% of 2N we get 270. We have:

(15/100 * 20/100 * 5N)  + (30/100 * 50/100 * 2N) = 270

0.15N + 0.3N = 270

0.45N = 270

N = 270/0.45

N = 600

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Question in English

If to 15% of 20% of 5N we add 30% of 50% of 2N we get 270. Calculate N.