SOLVE NOW PLEASE 15 points and brainliest

Answer:

Let's use a for number of days when he shot 50 shots and b for number of days when he shot 100 shots.

We have:

a + b = 20

We also know that he shot total of 1250 shots:

50a + 100 b = 1250

We have two equations. We can solve them for a and b.  Let's rearange first equation for a:

a= 20 - b

We insert this into second equation:

50 * (20 - b ) + 100b = 1250

1000 - 50b + 100b = 1250

50b = 250

b = 5

a = 20 - 5

a = 15

Mark shot 100 shots on 5 day

Answer: x = 15, y = 5

Step-by-step explanation:

x + y = 20   The number of days equals 20

50x + 100y = 1250    The free throws per day add up to 1250

Solve by substituion:

rewrite the first equation to get the value for x

x = -y +20  Subsstitute for x in the second equation

50(-y +20) + 100y = 1250

-50y + 1000 + 100y = 1250  Subtract 1000 from both sides and simplify y

50y = 250 Divide both sides by 50

y = 5

substitute in the first equation and solve for x

x + 5 = 20

x = 15

Substitute into the second equation to check

50(15) + 100(5) = 1250

750 + 500 = 1250

1250 = 1250   True

And just for illustration, the attachment shows the graph of the solution, (15,5)

Answer: The answer to your second question is 2/15

Step-by-step explanation:

6/9=2/3 and 2/3 divided by 5 or multiplied by 1/5 is 2/15

Answer:

i got 7 [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

The equation of the Line of fit is y = 15x + 30.

The equation of the line of fit, we can use the two given points: (0, 30) and (2, 60).

First, we find the slope (m) of the line using the formula:

m = (change in y) / (change in x)

m = (60 - 30) / (2 - 0) = 30 / 2 = 15

The slope of the line is 15.

Next, we can use the point-slope form of a linear equation:

y - y₁ = m(x - x₁)

Using the point (2, 60):

y - 60 = 15(x - 2)

Simplifying the equation:

y - 60 = 15x - 30

Now, we can isolate y:

y = 15x - 30 + 60

y = 15x + 30

Therefore, the equation of the line of fit is y = 15x + 30.

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Answer:

Z= 31.6666666666666666

Step-by-step explanation:

x/5 - 4 = 2 1/3

x/5 = 6 1/3

x=6 1/3 times 5

x=31.66 repeated

Answer:

Add up the number of chocolate chips and then just search up waht is the median of ____.

Step-by-step explanation:

Hope this helped

Answer:

The answers are............

4) D, 5) 0.75

Answer:

0 =0

Both sides are equal

There are infinite solutions

Step-by-step explanation:

[tex]2 (2k - 16) = -30 + 4k - 2\\\\\mathrm{Subtract\:the\:numbers:}\:-30-2=-32\\2\left(2k-16\right)=4k-32\\\\\mathrm{Expand\:}2\left(2k-16\right):\quad 4k-32\\\\4k-32=4k-32\\\\\mathrm{Add\:}32\mathrm{\:to\:both\:sides}\\\\4k-32+32=4k-32+32\\\\Simplify\\\\4k =4k\\\\\mathrm{Subtract\:}4k\mathrm{\:from\:both\:sides}\\\\4k-4k=4k-4k\\\\Simplify\\\\0=0\\\\\mathrm{Both\:sides\:are\:equal}[/tex]

Answer:

<ABC = 49°

Step-by-step explanation:

The sum of two supplementary angle is 180. From the diagram, the two angles are 3x+4 and 8x+11. IF this two angles are supplementary then;

3x+4+8x+11 = 180

11x+15= 180

11x = 180-15

11x = 165

x = 165/11

x = 15

From the attached diagram, <ABC = 3x+4

<ABC = 3(15)+4

<ABC = 45+4

<ABC = 49°

Answer:

-7

Step-by-step explanation:

-2(3x-5)=52

-6x+10=52

-6x=52-10

-6x=42

x=42/-6

x=-7

Answer:

Yes

Step-by-step explanation:

Answer: The value of x is 60 and two prime numbers are 2 and 3

Step-by-step explanation:

This is because 2 multiplied by 30 is 60 and 2 and 3 are prime numbers because their only factors are one and themselves.

Answer:

I) the value of X is 60

60=1×_

2×30

3×20

4×15

5×12

6×12

6×10 = 60

ii) 2 and 3 you also can put 5

Hope this helps

Answer:

400

Step-by-step explanation

First, find how many cycles 5 man can make in 8 days.

400/2=200 (/ means divide)

Next, mutliply the answer to find out how many cycles 5 man can make in 16 days.

200x2=400

Answer:

invention of 0

Step-by-step explanation:

shows that it is possible to have nothing

Answer:

x = 22 / 2.95 :)

Step-by-step explanation:

Alright, so 2.95x + 28 = 50.

This means, (subtracting 28) that

2.95x = 50 - 28 = 22

2.95x = 22

So...

x = 22 / 2.95 :)

Answer:

blank 1 (in the graph) : -7x

blank 2 (in the graph) : 28

blank 3 (next to the graph) :-4

on the bottom equation blanks: -4 and then 7

bottom equation blanks should look like:

(x+-4)    (7-7)

The mean (µ) and standard deviation (σ) of the binomial distribution with n=202 and p=0.44 are 88.88 and 7.8959, respectively. The probability of obtaining x=53 is approximately 0.0561, and the z-score for x=37 is -6.55.

To find the mean (µ) and standard deviation (σ) of the binomial distribution, we use the formulas µ = np and σ = sqrt(np(1-p)), where n is the number of trials and p is the probability of success.

Given n = 202 and p = 0.44, we can calculate the mean and standard deviation as follows:

µ = 202 * 0.44 = 88.88 (rounded to 2 decimal places)

σ = sqrt(202 * 0.44 * (1 - 0.44)) = 7.8959 (rounded to 4 decimal places)

Now, let's suppose we want to find the probability of obtaining a specific value of x, let's say x = 53. We can use the formula for the binomial probability:

[tex]P(x) = C(n, x) * p^x * (1 - p)^{n - x}[/tex]

Substituting the values, we have:

[tex]P(53) = C(202, 53) * (0.44)^{53} * (1 - 0.44)^{202 - 53}[/tex]

Using a binomial calculator or software, we can find the probability as approximately 0.0561 (rounded to 4 decimal places).

Finally, if we want to calculate the z-score for a given value of x, we can use the formula:

z = (x - µ) / σ

For x = 37, the z-score would be (37 - 88.88) / 7.8959 = -6.55 (rounded to 2 decimal places).

In conclusion, for a binomial distribution with n = 202 and p = 0.44, the mean is 88.88 and the standard deviation is 7.8959. The probability of obtaining x = 53 is approximately 0.0561. The z-score for x = 37 is -6.55.

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Step-by-step explanation:

12x+6y+72=-35

12x+6y=-35-72

12x+6y=-107 equation i

X+y=-10 equation ii

multiply by 6 on equation ii and subtract from equation i

12x+6y=-107

-6x-6y=60

6x=47

X=7.83333333

put the value of X on equation i

12×7.83333333+6y=-107

6y=-107-94

y=33.5

now

put the value of X and y on equation iii

7×7.83333333-5×33.5+6z=200

54.8333331-167.5+6z=200

-112.666667+6z=200

6z=200+112.666667

z=52.1111112

Answer:

y=3x

Step-by-step explanation:

Answer:

The constant of variation is k = -2 ⇒ (B)

Step-by-step explanation:

The equation of the direct variation is y = k x, where

The given table has 4 points (-1, 2), (0, 0), (2, -4), (5, -10)

We can use one of the points [except point (0, 0)] to find the value of k

∵ (-1, 2) is a given point

∴ x = -1 and y = 2

∵ k = [tex]\frac{y}{x}[/tex]

→ Substitute the values of x and y in the relation above

∴ k = [tex]\frac{2}{-1}[/tex]

∴ k = -2

The constant of variation is k = -2

Answer:

c

Step-by-step explanation:

Answer:

Technically it is supposed to be 37.7 but in this case, the answer is C: 37.68 cm

Step-by-step explanation:

I am smart...Calibri is the superior font and green is the superior highlight color.

Answer:

17 to 9

Step-by-step explanation:

I think let me know if I'm wrong

Answer:

okay 9 of marcus shoes are jordans 17 of marcus shoes arn't jordans

Step-by-step explanation:

bc if you subtract 27-9 you can get 17

The optimal solution for the primal LP is x1 = 0, x2 = 2, x3 = 2, with a maximum value of z = 16.

Let's start by writing down the dual LP. The dual LP is obtained by interchanging the roles of variables and constraints in the primal LP. The dual variables corresponding to the constraints are y1 and y2, representing the multipliers for the first and second constraint, respectively. The objective function of the dual LP is given by minimizing 4y1 + 9y2, and the dual LP subject to the dual constraints is as follows:

min 4y1 + 9y2 subject to:

2y1 + y2 ≥ 4

3y1 + 3y2 ≥ 3

y1, y2 ≥ 0

To graphically solve the dual LP, we can plot the feasible region defined by the dual constraints and find the point that minimizes the objective function. By solving the dual LP, we obtain y1 = 1/3 and y2 = 2/3, with a minimum value of 10/3. Now, using the complementary slackness conditions, we can find the set of optimal solutions for the primal LP. The conditions state that for any optimal solution, the product of the primal constraint and the dual variable must be zero. Since the primal constraints are inequalities, we consider them as equalities to check the conditions. For the first constraint, 2x1 + 2x2 + x3 = 4, we have y1(2x1 + 2x2 + x3 - 4) = 0, which gives y1 = 0. Similarly, for the second constraint, x1 + 3x2 + x3 = 9, we have y2(x1 + 3x2 + x3 - 9) = 0, which gives y2 = 0. Hence, the optimal solution for the primal LP is x1 = 0, x2 = 2, x3 = 2, with a maximum value of z = 16, satisfying the complementary slackness conditions.

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The height of the rectangular pyramid is 16 units.

To find the height of the rectangular pyramid, we can use the formula for the volume of a pyramid:

Volume = (1/3) * base area * height

Given that the volume of the rectangular pyramid is 512 units^3, and the length of the rectangular base is 8 units and the width is 12 units, we can find the base area:

Base Area = length * width = 8 * 12 = 96 units^2

Now we can substitute the values into the volume formula:

512 = (1/3) * 96 * height

To solve for the height, we can isolate it by multiplying both sides of the equation by 3/96:

512 * 3/96 = height

Simplifying the right side of the equation:

16 = height

The rectangular pyramid is 16 units tall as a result.

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The chosen dream product is a solar-powered smart home automation system. The Vision & Mission statement is to create an environmentally sustainable and technologically advanced solution that enhances comfort, convenience, and energy efficiency in households. The production and successful implementation of this product require thorough research to assess its feasibility and viability, considering factors such as technological capabilities, market demand, and economic sustainability.

The Vision of the solar-powered smart home automation system is to revolutionize the way households interact with their living spaces by providing an environmentally sustainable solution. The Mission is to develop a state-of-the-art system that seamlessly integrates solar power generation, smart devices, and automation technologies to enhance comfort, convenience, and energy efficiency. This product aims to empower homeowners to reduce their carbon footprint while enjoying the benefits of a modern and connected lifestyle.
To undertake research work on the dream product, a comprehensive assessment is required. This involves evaluating the feasibility of integrating solar power generation with home automation technologies. Factors such as the availability of solar resources, technological advancements in energy storage, and the compatibility of smart devices with automation systems need to be investigated. Additionally, a market analysis is crucial to understand the demand for such a product, potential competition, and pricing considerations.
The research work also involves assessing the viability of the product from an economic perspective. This includes analyzing production costs, potential revenue streams, return on investment, and long-term sustainability. Careful consideration must be given to manufacturing processes, supply chain management, and scalability to ensure successful production and distribution of the product.
Overall, the development and successful implementation of a solar-powered smart home automation system require extensive research to assess its technical feasibility, market demand, and economic viability. By conducting a thorough assessment, the dream product can be evaluated effectively, paving the way for its production and subsequent success in the market.

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Answer:

y=24-4x

Step-by-step explanation:

If you use this equation on any problem, you can see it will work.  For (1,20) plug in the x and y variable, which is 20=24-4(1)      

4(1)=4, so the equation is 20=24-4

24-4=20

20=20

The standard deviation is approximately 1.3, rounded to one decimal place. The values for P(X≥5) and P(X≤3) are approximately 0.2 and 0.6, respectively, rounded to one decimal place.

To determine the standard deviation, we first need to calculate the mean. We can do this by multiplying each value of 'x' by its corresponding probability and summing them up:

Mean (μ) = (1*0.1) + (2*0.2) + (3*0.3) + (4*0.2) + (5*0.2) = 0.1 + 0.4 + 0.9 + 0.8 + 1.0 = 3.2

Next, we can calculate the variance (σ^2) by squaring the differences between each 'x' value and the mean, multiplying by their probabilities, and summing them up:

Variance (σ²) =

[tex][(1-3.2)^2 * 0.1] + [(2-3.2)^2 * 0.2] + [(3-3.2)^2 * 0.3] + [(4-3.2)^2 * 0.2] + [(5-3.2)^2 * 0.2]= \\(-2.2)^2 * 0.1] + [(-1.2)^2 * 0.2] + [(-0.2)^2 * 0.3] + [(0.8)^2 * 0.2] + [(1.8)^2 * 0.2]= \\4.84 * 0.1 + 1.44 * 0.2 + 0.04 * 0.3 + 0.64 * 0.2 + 3.24 * 0.2= 0.484 + 0.288 + 0.012 + 0.128 + 0.648 \\= 1.56[/tex]

Finally, the standard deviation (σ) is the square root of the variance:

Standard Deviation (σ) = √1.56 ≈ 1.25 (rounded to one decimal place)

To find P(X≥5), we add up the probabilities of all 'x' values greater than or equal to 5:

P(X≥5) = P(X=5) = 0.2

To find P(X≤3), we add up the probabilities of all 'x' values less than or equal to 3:

P(X≤3) = P(X=1) + P(X=2) + P(X=3) = 0.1 + 0.2 + 0.3 = 0.6

Therefore, the values are:

Standard Deviation ≈ 1.3

P(X≥5) ≈ 0.2

P(X≤3) ≈ 0.6

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Answer: D

Step-by-step explanation: I just answered the question on the quiz and got it wrong (from a p e x)