Brian was thinking of a number. Brian divides by 6, then adds 3 to get an answer of 6. What was the original number?.

Answer:

28,000

Step-by-step explanation:

Answer:

28,000

Step-by-step explanation:

if u multiply 6,827 by 4 u get 27,303  and 208, 000 is way off so is 240, 000 24,000 is off by 3,303 and 28, 000 is off by 697. so it's 28,000.

A sample size of at least 424 students is required to obtain a 90% confidence interval with a margin of error of at most 0.04.

To determine the required sample size for a 90% confidence interval with a margin of error of at most 0.04, we can use the formula:

\(n = \left(\frac{z \cdot \sigma}{E}\right)^2\)

where:

n is the sample size

z is the z-score associated with the desired confidence level (90% confidence level corresponds to z = 1.645)

σ is the standard deviation of the population (unknown, so we use 0.5 as a conservative estimate, since the proportion of students who would patronize the nightclub is unknown and assumed to be 0.5 for maximum variability)

E is the maximum desired margin of error (0.04)

Plugging in the values, we get:

n = (1.645 * 0.5 / 0.04)²

n ≈ 424

Therefore, a sample size of at least 424 students is required to obtain a 90% confidence interval with a margin of error of at most 0.04.

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Given that a sofa is on sale for $363, which is 34% less than the regular price.

To determine: The regular price.

Let the regular price be Y. If the regular price is Y, then the 34%regular price would be

It should be noted that the 34 % less the regular price is the price on sale. Then,

Hence, the regular price of the sofa is $550

Answer:

4-2 =  4 quarters to 2 pennies

Answer:

0.5 : 0.75

Step-by-step explanation:

because 1/2 is .5 in decimal form and 2/3 is .75 in decimal form

Aya can make 14 mats of 1 foot long.

Division is one of the fundamental arithmetic operation, which is performed to get equal parts of any number given, or finding how many equal parts can be made. It is represented by the symbol "÷" or sometimes "/"

Given that, Aya has 14\(\frac{2}{5}\) feet of chain. She wants to make pieces foot long mat.

Let can make x mats out of the given chain, since each mat is 1 foot long, so,

1×x =  14\(\frac{2}{5}\)

x = 72/5

x = 14.4

x ≈ 14

Hence, She can make 14 mats out of the given chain.

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Answer:

\(x < 1\)

For any number to be less than the given number in an inequality, the number on the right side has to match up with the word problem given. The problem says the number was less than 8, and to get anything less than 8, you must multiply any number below 1 by that number.

======================================================

Explanation:

Pick two points from the table such as (1,7) and (2,14)

Apply the slope formula.

\((x_1,y_1) = (1,7) \text{ and } (x_2,y_2) = (2,14)\\\\m = \text{slope} = \frac{\text{rise}}{\text{run}} = \frac{\text{change in y}}{\text{change in x}}\\\\m = \frac{\text{y}_{2} - \text{y}_{1}}{\text{x}_{2} - \text{x}_{1}}\\\\m = \frac{14 - 7}{2 - 1}\\\\m = \frac{7}{1}\\\\m = 7\\\\\)

This means y = mx+b updates to y = 7x+b

Plug a point like (1,7) into that equation to solve for b.

y = 7x+b

7 = 7*1+b

7 = 7+b

7-7 = b

0 = b

b = 0

We go from  y = 7x+b to  y = 7x+0

That simplifies to the final answer of   y = 7x

-------------------

Check:

Plug x = 2 to get

y = 7x

y = 7*2

y = 14

This shows (2,14) is on the line, and it matches with the table.

I'll let you check the other x values.

Another way to verify is to use a graphing app like GeoGebra or Desmos.

Answer: y+7x

Step-by-step explanation: y equals to 7x because 7x1 is 1 and vice versa.

The answer to your question would be D. 3/1

Answer:5

Step-by-step explanation:

The required payment is $46•1965.

A tax is a mandatory fee or financial charge that a government imposes on a person or a business in order to raise money for public projects like building the greatest infrastructure and services. Different public expenditure programmes are then funded with the funds that have been raised.

According to the established law, it will attract harsh repercussions if one does not pay taxes or refuses to contribute.

There are two main categories of taxes: direct taxes and indirect taxes. Both taxes are implemented in different ways. Some of them, like the dreaded income tax, corporate tax, wealth tax, etc., you pay directly, while others, like sales tax, service tax, value added tax, etc., you pay indirectly.

according to question,

Advertising percentage is 60%

Sale tax percentage is 7%

Selling price is $68•95

The amount after those payments=required

First you add the payment but they are in percentage

60%+7%=67%

So,

67% is the amount of payment

67×$68•95/100

$4619•65/100

=$46•1965

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Answer:

7r² - 6r + 9

Step-by-step explanation:

Simply combine like terms to find our final polynomial:

8r² - 7r - 9 - r² + r

7r² - 6r + 9

Answer:

7r^2-6r-9

Step-by-step explanation:

8r^2-7r-9-r^2+r

(8r^2-r^2)+(-7r+r)-9

bring to standard form

7r^2-6r-9

Answer:

y=10x+55

Step-by-step explanation:

First, you need to find the slope.

y2-y1/x2-x1

-5-5/-6+5=-10/-1=10

Now, we substitute one of the points for the values in y=mx+b

y=10x+b

5=10(-5)+b

5=-50+b

55=b

The full equation is y=10x+55

Answer:

90

Step-by-step explanation:

Answer:

Step-by-step explanation:

It could be apple because there is more apple that blackberry fruit drops

Step-by-step explanation:

apple flavoured and 8 are blackberry

flavoured. She chooses a sweet at random and eats it. Then she chooses another sweet at

random. Calculate the probability

Answer:

The answer is A

Step-by-step explanation:

since JHG = 65, then the other two angles added together = 65. Therefore, I can just add what the two smaller angles are to equal 65. Solve for x, then plug x into one of the equations! JHI = 19, and GHI = 46

The level of measurement that is appropriate for a classification where students are asked to rank their professors as good, average, or poor is the ordinal level of measurement.

Ordinal level of measurement is a statistical measurement level.

It involves dividing data into ordered categories.

For instance, when asked to rank teachers as good, average, or poor, the students' rating of the teachers falls under the ordinal level of measurement.

The fundamental characteristic of ordinal data is that it can be sorted in an increasing or decreasing order.

The numerical values of the categories are not comparable; instead, the categories are arranged in a specific order.

The ordinal level of measurement, for example, provides the order of the data but not the size of the intervals between the ordered values or categories.

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The integral ∫ -dr √(x²+2x+2) evaluates to -ln(√5-2).

To evaluate the integral, we can start by rewriting the expression inside the square root:

x² + 2x + 2 = (x+1)² + 1.

Now, let's consider the integral:

∫ -dr √(x²+2x+2).

Since we have the differential dr, we can treat r as a constant with respect to integration. Thus, we can rewrite the integral as:

∫ √(x²+2x+2) dr.

Next, we substitute u = x+1, which leads to du = dx. The integral becomes:

∫ √(u²+1) du.

Now, we can use the substitution method. Let's substitute v = u² + 1, which leads to dv = 2u du. Rearranging, we have du = dv / (2u). Substituting these values, the integral becomes:

(1/2) ∫ √v dv.

Integrating √v, we get (2/3) v^(3/2). Substituting back v = u² + 1 and u = x+1, we have:

(1/2) (2/3) (x+1)^(3/2) + C.

Simplifying, we get:

(1/3) (x+1)^(3/2) + C.

Finally, substituting back u = x+1, we have:

(1/3) (x+1)^(3/2) + C = -ln(√5-2).

Therefore, the integral ∫ -dr √(x²+2x+2) evaluates to -ln(√5-2).

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Let the calories of a cheeseburger be C, and the calories of a small order of fries be F. Using this notation: Two cheeseburgers and one small order of fries contain a total of 1400 calories. Calories in 2 cheeseburgers + Calories in 1 small order of fries = 14002C + F = 1400. Three cheeseburgers and two small orders of fries contain a total of 2260 calories. Calories in 3 cheeseburgers + Calories in 2 small orders of fries = 22603C + 2F = 2260. We can solve for C and F by solving these two equations for C and F using the method of elimination.

Let's double the first equation and subtract the second equation: 4C + 2F = 2800  -(3C + 2F = 2260). 1C = 540  C = 540. Calories in a cheeseburger = C = 540. Substituting this value of C into either of the two equations and solving for F gives us:2C + F = 14002(540) + F = 1400. F = 320. Calories in a small order of fries = F = 320. Therefore, two cheeseburgers contain 2C = 2(540) = 1080 calories, and one small order of fries contains F = 320 calories. Three cheeseburgers contain 3C = 3(540) = 1620 calories, and two small orders of fries contain 2F = 2(320) = 640 calories.

Answer: Calories in a cheeseburger = C = 540Calories in a small order of fries = F = 320. Calories in two cheeseburgers = 2C = 2(540) = 1080. Calories in three cheeseburgers = 3C = 3(540) = 1620. Calories in one small order of fries = F = 320Calories in two small orders of fries = 2F = 2(320) = 640.

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\(\sin^2\alpha-\cos^2\alpha=2\sin^2\alpha-1\\\sin^2\alpha+\cos^2\alpha=1\)

This is the Pythagorean identity, therefore \(\alpha\in\mathbb{R}\).

Step-by-step explanation:

please mark me as brainlest

The key of this question is to calculate the 20%. Recall that to do that, you can do as follows. Whenever you want to calculate the x % of a number, you multiply the number by x and then divide it by 100. So, in this case, we are going to calculate the 20% of 18 and the 20% of 24.

For 18:

For 24:

So now, we should add each calculation to the original lenght, so we have increased each lenght by 20%.

Then our final results are

18 + 3.6 = 21.6

24 + 4.8 = 28.8

So the correct answer is option C.

The correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are given below.Option A. V = -(0.25)x - 4 Option B. V = − (0.25)x+4

A function can be defined as a special relation where each input has exactly one output. The set of values that a function takes as input is known as the domain of the function. The set of all output values that are obtained by evaluating a function is known as the range of the function.

From the given options, only option A and option B are the functions that satisfy the condition.Both of the options are linear equations and graph of linear equation is always a straight line. By solving both of the given options, we will get the range as (-∞, 4) and domain as (-∞, 0).Hence, the correct options that could be an example of a function with a domain (-∞0,00) and a range (-∞,4) are option A and option B.

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Answer:

Johan spends $70.50.

Step-by-step explanation:

3 * 2 * 11.75 = 70.50

a. Inductive Reasoning: The statement "I see fireflies in my backyard every summer" is based on observations and generalizing from past experiences.

b. Deductive Reasoning: The statement "If A = B and B = A" is an example of a logical deduction.

a. Inductive Reasoning: The statement "I see fireflies in my backyard every summer" is an example of inductive reasoning. By observing fireflies in the backyard during past summers, a pattern or trend is recognized. This pattern leads to the generalization that fireflies are likely to appear in the backyard during summer. Inductive reasoning involves drawing conclusions based on repeated observations and generalizing from those observations to make a prediction about future events. Therefore, when stating, "This summer, I will probably see fireflies in my backyard," it is an application of inductive reasoning, relying on the assumption that the pattern observed in the past will continue in the future.

b. Deductive Reasoning: The statement "If A = B and B = A" exemplifies deductive reasoning. Deductive reasoning relies on established rules, principles, or premises to draw logical conclusions. In this case, the statement refers to the concept of equality in mathematics. The principle of equality states that if A is equal to B, and B is equal to A, then they are interchangeable and represent the same value. Deductive reasoning allows us to deduce that A and B are equivalent based on the given premise. It involves applying logical reasoning and established principles to arrive at a specific conclusion.

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Answer:

c is the answer to the question