3 people can build a shed in 8 hours.
How long would it take 5 people?
Give your answer in minutes.

Answer:

lawer, Police officer criminal justice

Step-by-step explanation:

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\(a(2x + 3) = 9x + 15 + x \\ a = \frac{5(2x + 3) }{2x + 3} \\ a = 5 \\ \)

Hoor it helps

The solution of the given expression a(2x+3) = 9x+15+x is 5.

A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.

An expression is a mathematical proof of the equality of two mathematical expressions.

Given the expression,

a(2x+3) = 9x + 15 + x

Divide both sides by 2x + 3

a = (9x + 15 + x)/(2x + 3)

a = (10x + 15)/(2x + 3)

a = 5(2x + 3)/(2x + 3)

a = 5

Hence "The solution of the given expression a(2x+3) = 9x+15+x is 5".

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Answer:

yes its correct

Step-by-step explanation:

you dont really need work because its really just substitution.

Answer:

If you are looking for 3x+8=42, then x=12.

Step-by-step explanation:

3x+8=42

Step 1:

Subtract 8 from both sides.

3x=36

Step 2:

Divide 36 by 2.

x=12.

I think this is the answer you are looking for.

The mean should be set to 12.07 ounces, so that 1% of the cups will overfill.

12 + (0.07 * 2) = 12.14; 12.14 - (12.14 * 0.01) = 12.07

The mean amount of coffee to be dispensed should be set to 12.07 ounces in order to allow 1% of the cups to overfill. This is calculated by taking the normal value of 12 ounces, and adding the standard deviation of 0.07 ounce, resulting in 12.14 ounces. Then, 1% of that value is subtracted, giving 12.07 ounces. This amount will ensure that 1% of the cups will overfill, while the other 99% will be filled to the normal value of 12 ounces. This is beneficial for the customer, as it guarantees that no cup will be underfilled. It also ensures that the vending machine will not waste any coffee by overfilling the cups too much. Setting the mean to 12.07 ounces is the best solution for both the customer and the vending machine.

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Answer:

C and e

Step-by-step explanation:

the 50r represents the commision he receives for each refrigerator he sells, and the 250 is the base salary and it’s bigger than, >, because he needs to earn MORE than 900 and you get D by solving the inequality,  50r >900, r>15

would be amazing if you marked this brainliest :)

Answer: the other guy is wrong it is c an d

Step-by-step explanation:

Answer: 59

Step-by-step explanation:

a triangle always equals 180 degrees. a+b+c= 180 so you would solve for e, 53+68+e= 180

Therefore, After 20 minutes, there are approximately 11.9 kg (rounded to one decimal place) of salt in the tank.

To solve this problem, we need to consider the rate of change of the amount of salt in the tank over time.

(a) Let's denote the amount of salt in the tank after t minutes as y (in kg). We can set up a differential equation to represent the rate of change of salt:

dy/dt = (rate of salt in) - (rate of salt out)

The rate of salt in is given by the concentration of salt in the incoming water (0 kg/L) multiplied by the rate at which water enters the tank (90 L/min). Therefore, the rate of salt in is 0 kg/L * 90 L/min = 0 kg/min.

The rate of salt out is given by the concentration of salt in the tank (y kg/9000 L) multiplied by the rate at which water leaves the tank (90 L/min). Therefore, the rate of salt out is (y/9000) kg/min.

Setting up the differential equation:

dy/dt = 0 - (y/9000)

dy/dt + (1/9000)y = 0

This is a first-order linear homogeneous differential equation. We can solve it by separation of variables:

dy/y = -(1/9000)dt

Integrating both sides:

ln|y| = -(1/9000)t + C

Solving for y:

y = Ce^(-t/9000)

To find the particular solution, we need an initial condition. We know that at t = 0, y = 12 kg (the initial amount of salt in the tank). Substituting these values into the equation:

12 = Ce^(0/9000)

12 = Ce^0

12 = C

Therefore, the particular solution is:

y = 12e^(-t/9000)

(b) To find the amount of salt in the tank after 20 minutes, we substitute t = 20 into the particular solution:

y = 12e^(-20/9000)

y ≈ 11.8767 kg (rounded to one decimal place)

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the least-squares solution of a x = b is the vector in the column space of a closest to b. then the statement is true

​ Aleast- squares solution of is a vector such that for all in .

The statement is true because the general​ least-squares problem attempts to find an that maximizes .

The above statement is actually the one that validates the least-square solution statement.

Hence , the least-squares solution of a x = b is the vector in the column space of a closest to b .then the statement is true

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Answer:

 0.0714

Step-by-step explanation:

The probability that the first is "working in nature" is 3/8.

The probability that the 2nd is "working in nature" is 2/7.

The probability that the 3rd is "not working in nature" is 5/6.

The probability that the 4th is "not working in nature" is 4/5.

Thus the probability that the first two of 4 opportunities are "working in nature" is ...

  (3·2·5·4)/(8·7·6·5) = 1/14 ≈ 0.0714

Answer:

y=5x+3

y=2x-6

y=(2/3)x+8

y=100x-15

y=10x-2990

Step-by-step explanation:

The equation of a line is y=mx+b, where m is the slope and b is the intercept. As long as m is positive and you plug something in for b, it can be used to answer your question.

Answer:

C. 2x + 10 = 39.88

Step-by-step explanation:

2x will give you the price of the 2 shirts and you have to add the fee of $10 to get the total of $39.88

Answer:

1.3333

Step-by-step explanation:

pls mark brainliest

Answer:

26.75 unit^2 to the nearest hundredth.

Step-by-step explanation:

Integrating between the 2 limits:

            2                            2

Area =   ∫    e^2x dx     =   [   1/2 e^2x ]

            0                            0

= 1/2( e^4 - e^0]

= 1/2(54.598 - 1)

= 26.749

Answer:

A= 10

Step-by-step explanation:

[10 + 2/360˚(10)]

Angle constructed by bisecting a 45° angle: By bisecting a 45° angle, we can construct an angle with a measure of 22.5 degrees.

To bisect an angle means to divide it into two equal parts. When we bisect a 45° angle, we are essentially dividing it in half to create two angles of equal measure.

To construct the bisector of a 45° angle, we can follow these steps:

Begin by drawing a ray (a straight line extending indefinitely in one direction) to serve as one side of the angle.

Using a protractor, measure and mark a 45° angle on the ray. This will be our original angle.

Place the point of the compass on the vertex (the point where the two sides of the original angle meet) and draw an arc that intersects both sides of the angle.

Without changing the compass width, place the compass point on one of the intersection points of the arc with the angle.

Draw another arc that cuts across the first arc, creating two points of intersection.

Finally, draw a ray connecting the vertex of the angle to one of the points of intersection on the second arc. This ray will be the bisector of the 45° angle.

Upon completing these steps, we will have constructed an angle bisector that divides the 45° angle into two equal angles, each measuring 22.5 degrees.

It's important to note that bisecting an angle is a fundamental geometric construction technique and can be used to divide any given angle into two equal parts. The process described above is specifically for bisecting a 45° angle, but the same principles can be applied to bisect angles of different measures.

In summary, by bisecting a 45° angle, we can construct an angle with a measure of 22.5 degrees. This construction involves drawing an arc from the vertex, creating two intersection points, and connecting the vertex to one of those points to form the angle bisector.

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The function f(x) = 1 / (x-3)^2 on the interval (1,4) does not contradict the Mean-Value Theorem because it satisfies the necessary conditions for the theorem to hold.

The Mean Value Theorem states that if a function is continuous on a closed interval [a, b] and differentiable on the open interval (a, b), then there exists a point c in (a, b) where the derivative of the function is equal to the average rate of change of the function over [a, b]. In other words, there exists a value c such that f'(c) = (f(b) - f(a))/(b - a).

In the given function f(x) = 1 / (x-3)^2, we can observe that the function is continuous on the interval (1, 4) and differentiable on the open interval (1, 4) since the denominator is non-zero within this interval. Thus, it satisfies the necessary conditions for the Mean Value Theorem to be applicable.

Therefore, the function f(x) = 1 / (x-3)^2 on the interval (1, 4) does not contradict the Mean-Value Theorem. It may or may not have a point within the interval where the derivative is equal to the average rate of change, but the theorem does not guarantee the existence of such a point for all functions.

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Answer:

UV

Step-by-step explanation:

That's the only one make sense

The correct value to be initially recorded in the books is $3,000.

In compliance with IFRS, when an asset is acquired, it is initially recorded at its cost, which includes all expenditures necessary to bring the asset to its intended use. In this case, the office table was purchased for $3,000 on January 1, 2017. Therefore, the correct value to be initially recorded in the books is $3,000.

When the table was revalued on December 31, the carrying amount is the amount at which the asset is recognized in the financial statements after deducting any accumulated depreciation or impairment losses. In this case, since the table had not been recorded in the books, the carrying amount is zero.

The revaluation to $2,800 against a carrying amount of $2,250 indicates that the table's fair value has decreased. However, it's important to note that the revaluation occurred after the year-end, so it does not impact the initial recording of the asset.

Therefore, the correct value to be initially recorded in the books remains at $3,000, as it reflects the cost incurred to acquire the table. The revaluation will be considered for subsequent accounting periods to reflect the change in fair value, but it does not retroactively affect the initial recording of the asset.

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If the p-value for the slope coefficient of a particular regressor x is 0.03, we would conclude that the coefficient is statistically significant at a 5% level of significance.


- A p-value is a measure of the evidence against the null hypothesis. In this case, the null hypothesis would be that the slope coefficient of x is equal to zero.
- A p-value of 0.03 means that there is a 3% chance of observing a coefficient as large or larger than the one we have, assuming that the null hypothesis is true.
- A p-value less than the level of significance (usually 5%) is considered statistically significant. This means that we reject the null hypothesis and conclude that there is evidence that the coefficient is not equal to zero.
- In practical terms, a significant coefficient indicates that the variable x is likely to have an impact on the dependent variable in the regression model.

Therefore, if the p-value for the slope coefficient of a particular regressor x is 0.03, we can conclude that the coefficient is statistically significant at a 5% level of significance, and that there is evidence that x has an impact on the dependent variable in the regression model.

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A) y= -9m + 240

B) 132lb

It should be noted that the value of the depreciation is $7200 and the cost per mile will then be $0.48 per mile.

It should be noted that the calculation for the depreciation will be:

= (Purchase price - Today's value) / Number of years owned

= ($34590 - $20190) / 2

= $14400 / 2

= $7200

The total variable cost will be:

= Gasoline + Oil changes + Maintenance + Cleaning

= $1848.30 + $51.85 + $126.84 + $242.90

= $2269.89

The total fixed cost will be:

= Insurance + License + Loan + Depreciation

= $785.00 + $125 + $395.30 + $7200

= $8505.30

The cost per mile will be:

= (Annual variable cost + Annual fixed cost) / Number of miles

= (2269.89 + 8505.30) / 22322

= 10775.19 / 22322

= $0.48 per mile.

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There is no inherent relationship between the median and the average. It is possible for the median to be greater than the average or vice versa, depending on the specific values in the set.

To determine whether the median of the 5 numbers is greater than the average (arithmetic mean), we need the actual values of the numbers. Without specific values, we cannot provide a definitive answer. However, I can explain the concept of the median and the average to help you understand how they relate to each other.

The median is the middle value of a set of numbers when they are arranged in ascending or descending order. If there is an odd number of values, the median is the middle number. If there is an even number of values, the median is the average of the two middle numbers.

The average, or arithmetic mean, is calculated by summing up all the values in a set and dividing the sum by the number of values.

In general, there is no inherent relationship between the median and the average. It is possible for the median to be greater than the average or vice versa, depending on the specific values in the set.

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Answer:

x≤6

Step-by-step explanation:

Answer: x<6

Step-by-step explanation:

closed circle line going left from 6

Answer:

y = 3x - 4

Step-by-step explanation:

With the slope and a point, I can make an incomplete slope-intercept equation and solve for the y-intercept.

\(y=3x+b\\\\2=3(2)+b\\\\2=6+b\\\\2-6=6-6+b\\\\-4=b\)

The equation is:

\(y=3x-4\)

Hope this helps!

Answer:

Step-by-step explanation:

Answer 10.5

(a) The population proportion of success is given as 53%. This means that 53% of the population is expected to have a successful outcome from the flu shot.

To calculate the population proportion of success, we are given that the flu vaccine is effective for 53% of patients administered the shot. This means that 53% (or 0.53) of the entire population is expected to have a successful outcome from the flu shot.

(b) The mean of the sampling distribution of the sample proportion is also 53%.

The mean of the sampling distribution of the sample proportion can be calculated using the same population proportion of success, which is 53%. The sampling distribution represents the distribution of sample proportions if multiple samples of the same size are taken from the population. Since the mean of the sampling distribution is equal to the population proportion, the mean in this case is also 53%.

(c) The standard deviation of the sampling distribution of the sample proportion is approximately 0.017.

To calculate the standard deviation of the sampling distribution of the sample proportion, we use the formula:

\(\sigma = \sqrt{\frac{p \cdot q}{n}}\)

where σ represents the standard deviation, p is the population proportion of success (0.53), q is the complement of p (1 - p, which is 0.47), and n is the sample size (85).

Plugging in the values, we get:

\(\sigma = \sqrt{\frac{0.53 \cdot 0.47}{85}}\)

Calculating this expression, we find:

\(\sigma \approx \sqrt{\frac{0.0251}{85}} \approx \sqrt{0.000295} \approx 0.0171\)

Rounding this value to three decimal places, the standard deviation of the sampling distribution of the sample proportion is approximately 0.017.

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Answer:

d is correct

Step-by-step explanation:

Answer:

-10 and - 2x

The x is unknown number so, we don't know which one if -2x or -10 is greater.