If christen sells five out of eight of her clothes to maria and one out of four of them to alexandra what fraction of her clothes is left

Answer:

12 square yards of carpet

Step-by-step explanation:

area is l x w so 3 x 4 = 12

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Hey there! I'm happy to help!

To increase a point by a certain scale factor, you multiply each number inside the point by that scale factors. Ours is 3.

2(3)=6

-4(3)=-12

So, our final point is (6,-12).

Have a wonderful day! :D

the answer is  34

in order to find answer:

enter tan^-1( 2/3 into calculator

2 is on oppisite side and 3 is on adjacent so we use tan = o/a

At 100°C, the nitrogen molecules in the container have an rms speed of 576 m/s. The pressure inside the container,

which is at a pressure of 2.4 atm, is a result of the collisions of these fast-moving molecules with the walls of the container. The area of the wall is 13 cm x 13 cm, which means there is a total surface area of 169 cm^2.

The collisions of the nitrogen molecules with this surface area will result in a force on the wall, which is what creates the pressure.

Overall, the properties of the nitrogen molecules, including their speed and number, contribute to the overall pressure inside the container.

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Answer:

The Earth's system which was affected the most by fossilized dinosaurs was the lithosphere.

The value of x when using addition property of equality to solve the given problem is; -44

The addition property of equality is a property of equality that states that when the same quantity is added to both sides of an equation, it will produce an equivalent equation. For example, 4 = 2 + 2 is an equation due to the fact that both the right and the left-hand sides of the equal sign represent the number 4.

The equation to solve is;

-60 = x - 16

By the use of addition property of equality, we will add 16 to both sides to get;

-60 + 16 = x - 16 + 16

x = -44

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Answer:

$38.40 × 1.06 = $40.70 before tip

$40.70 × .15 = $6.11 tip

The tip on a restaurant bill that comes to $38.40 before tax and tip, with a 6% tax added and a 15% tip included, is $6.11.

To solve this problem, we need to first calculate the total cost of the meal with tax.

The tax is calculated by multiplying the pre-tax amount ($38.40) by the tax rate (6% expressed as a decimal, which is 0.06):

Tax = $38.40 x 0.06 = $2.30

So the total cost of the meal with tax is:

Total cost = $38.40 + $2.30 = $40.70

Next, we need to calculate the amount of the tip by multiplying the total cost by the tip rate (15% expressed as a decimal, which is 0.15):

Tip = $40.70 x 0.15 = $6.11

Therefore, the tip amount is $6.11.

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Answer:

7.93%

Step-by-step explanation:

504/100 = 5.04

40/5.04 = 7.93%

Answer:

68266==874624./4

Step-by-step explanation:

77353877473=287365-2874662kkh=2875

Answer:

x=6

Step-by-step explanation:

you divide -25 on both sides

-25x=-150

divido todo por -25 lo que me da es

x=6

Answer:

not equivalent to meteorologists ratio

Step-by-step explanation:

meteorologists ratio is

rainy days : sunny days = 2 : 5

last months weather is

rainy days : sunny days

= 10 : 20 ( divide both parts by LCM of 10 )

= 1 : 2 ← not equivalent to 2 : 5

Answer:

7

Step-by-step explanation:

Given:

x2+5x-7

Substitute:

(2)2+5(2)-7

Pemdas:

4+10-7

PemdAs:

14-7

PemdaS:

7

A nominal scale would be least helpful to a researcher who wants to know how intensely respondents feel about a brand.

Nominal scales  classify responses into distinct  orders or markers without any  essential order or numerical value. They're  generally used for qualitative or categorical data where responses are mutually exclusive and there's no  essential ranking or intensity associated with the  orders.   To measure the intensity of  passions about a brand, a experimenter would need a scale that allows repliers to express their  position of intensity or strength of their  passions.

Nominal scales,  similar as a"  yea/ no" or" agree/ differ" scale, don't  give the necessary granularity to capture the intensity of  feelings or  passions directly. They only indicate whether a replier belongs to a particular  order without  secerning the  position of intensity.   rather, ordinal or interval scales would be more applicable for  landing the intensity of  passions.

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The weighted mean takes into account the weight of each investment and can provide a more accurate measure of the overall rate of return on the portfolio than the mean or median.

The weighted mean, mean, and median overall rate of return on this investment portfolio can be calculated using the following formulas:

Weighted Mean: Weighted mean = (R1 x W1) + (R2 x W2) + (R3 x W3) + ...

Mean: Mean = (R1 + R2 + R3 + ...) / N

Median: Median = (N + 1) / 2

where R1, R2, etc. are the returns on individual investments, W1, W2, etc. are the weights assigned to each investment, and N is the total number of investments in the portfolio.

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Answer:

B'(-3, 2)

Explanation:

In the triangle, point B is at (3, 2).

We want to find the coordinates of B', the image of B when triangle ABC is reflected over the y-axis.

When a point (x,y) is reflected over the y-axis, the transformation rule is:

This means that the x-coordinate changes to the opposite sign while the y-coordinate stays the same.

Applying this rule, we have:

Thus, the coordinates of point B' after triangle ABC is reflected across the y-axis will be B'(-3, 2).

1) Considering that y varies directly as the fourth power of x. So we can write:

2) But notice, we were told when x=1, y=6 so we can write out:

Note that now, we know the constant "k" of proportionality. Then we can write the following equation:

Thus, this is the answer.

a) The solution for b in the equation 2b × 3 = 6 is b = 1.

b) The solution for b in the equation 32 - 3b = 2 is b = 10.

c) The solution for b in the equation 6 + 7b = 41 is b = 5.

d) The solution for b in the equation 100/5b = 2 is b = 10.

a) To solve for b in the equation 2b × 3 = 6, we can start by dividing both sides of the equation by 2 to isolate b.

2b × 3 = 6

(2b × 3) / 2 = 6 / 2

3b = 3

b = 3/3

b = 1

Therefore, the solution for b in the equation 2b × 3 = 6 is b = 1.

c) To solve for b in the equation 6 + 7b = 41, we can start by subtracting 6 from both sides of the equation to isolate the term with b.

6 + 7b - 6 = 41 - 6

7b = 35

b = 35/7

b = 5

Therefore, the solution for b in the equation 6 + 7b = 41 is b = 5.

b) To solve for b in the equation 32 - 3b = 2, we can start by subtracting 32 from both sides of the equation to isolate the term with b.

32 - 3b - 32 = 2 - 32

-3b = -30

b = (-30)/(-3)

b = 10

Therefore, the solution for b in the equation 32 - 3b = 2 is b = 10.

d) To solve for b in the equation 100/5b = 2, we can start by multiplying both sides of the equation by 5b to isolate the variable.

(100/5b) × 5b = 2 × 5b

100 = 10b

b = 100/10

b = 10.

Therefore, the solution for b in the equation 100/5b = 2 is b = 10.

In summary, the solutions for b in the given equations are:

a) b = 1

c) b = 5

b) b = 10

d) b = 10

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Answer:

18 units^2

Step-by-step explanation:

Formula for Area of trapezoid:    ( base 1 + base 2 / 2) * height

(3 + 9 / 2) * 3 = (12 / 2) * 3 = 6 * 3 = 18 units^2

I hope this helps

Answer:

18²

Step-by-step explanation:

Formula for a trapezium:

Area = base1 + base2/2 × height

3 + 9/2 × 3

= 12/2 × 3

18²

Answer:

y = -2x + 9

Step-by-step explanation:

1) Use the equation y = mx + c (m being gradient and c being y-intercept)

2) Substitute all the values to get 7 = -2(1) + c

3) Solve to get c:

4) Final answer: y = -2x + 9

Answer:

boys=48

Step-by-step explanation:

b+g=54

b=8g

b=54-g

b=8(54-b)

b=432-8b

b+8b=432

9b=432

divide by 9 gives as 48 boys

The approximate value of the speed of the car in feet per second is A. 5.32 ft/s.

An equation is an expression that shows the relationship between two or more numbers and variables. In this case, tan(θ) = s² / 49

sinθ = 1/2

θ = sin⁻¹ (0.5) = 30⁰

tan(30) = s² / 49

s = 5.32 ft/s

Therefore, the approximate value of the speed of the car in feet per second is 5.32 ft/s.

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Answer:

464 units²

Explanation:

Part A

Length × Width = 8 × 16 = 128 units²

Part B

Length × Width = 24 × 8 = 192 units²

Part C

Length × Width = 12 × 4 = 48 units²

Part D

Length × Width = 24 × 4 = 96 units²

Total Area: 128 + 192 + 48 + 96 = 464 units²

Answer:

464 units²

Step-by-step explanation:

The quickest way to determine the area of the figure is to calculate the area of the total rectangle, then subtract the missing parts.

(see attached diagram)

Total area of the rectangle = width × length

                                             = 24 × (16 + 4 + 4)

                                             = 24 × 24     ← the shape is actually a square!

                                             = 576 units²

Missing Area 1

Top left square = 8 × 8

                         = 64 units²

Missing Area 2

Bottom right rectangle = 4 × 12

                                      = 48 units²

Total area = area of rectangle - missing area 1 - missing area 2

                 = 576 - 64 - 48

                 = 512 - 48

                 = 464 units²

We need a minimum sample size of 336 to estimate the population proportion of U.S. adults who eat fast food four to six times per week with a 90% confidence level.

A) When there is no preliminary estimate available, we can use the worst-case scenario, which is p = 0.5 (since this gives the maximum possible variability). The margin of error is given as 3% or 0.03. The formula to calculate the minimum sample size needed is:

n = [Z² x p x (1 - p)] / E²

where Z is the z-value for the desired confidence level, p is the population proportion, and E is the margin of error.

At 90% confidence, the z-value is 1.645. Plugging in the values, we get:

n = [(1.645)² x 0.5 x (1 - 0.5)] / (0.03)²

n ≈ 1217.75

We need a minimum sample size of 1218 to estimate the population proportion of U.S. adults who eat fast food four to six times per week with a 90% confidence level and an accuracy of 3%.

B) If a proper study found that 11% of U.S. adults eat fast food four to six times per week, we can use this as a preliminary estimate and calculate the minimum sample size needed with the formula:

n = [Z² x p x (1 - p)] / E²

where p is the preliminary estimate of the population proportion (0.11), and the other variables are the same as before.

At 90% confidence, the z-value is 1.645. Plugging in the values, we get:

n = [(1.645)² x 0.11 x (1 - 0.11)] / (0.03)²

n ≈ 335.77

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Answer:

Alexa: 58.8%

Benito: 12.5%

Carmen: 28.7%

Step-by-step explanation:

(70m + 15m + 35m)x=5000

x=41.67 times

41x120m=4920m, leaving 80 m which Alexa and Benito got an extra time.

Alexa painted 42 times

Benito painted 41.67 times

Carmen painted 41 times

Alexa: 42x70m=2940m, 2940/5000=58.8%

Benito: 41.67x15m=625m, 625/5000=12.5%

Carmen: 41x35m=1435m, 1435=/5000=28.7%

Answer:

It is not correct, but very, very close, so great job!!

Step-by-step explanation:

When doing graphing of this sort, I always use Desmos to check my answers, so just get the website and go to the graphing calculator, type in the function, and you should get your graph.

The only thing you missed was that the other two points are (-3,-1) and (3,-1), rather than 3 and -3.

Solving the given equations by matrix method we get the value of x₁ and x₂ to be -2 and -9 respectively.

We have the equations

−2x₁ − 3x₂ = −23

6x₁ + x₂ = −3

Here we will arrange the coefficients in one matrix, and the variables in the other to get

\(\left[\begin{array}{ccc}-2&-3\\6&1\\\end{array}\right] \left[\begin{array}{ccc}x_1\\x_2\\\end{array}\right] = \left[\begin{array}{ccc}-23\\-3\\\end{array}\right]\)                    

Now we will take the co-efficient matrix on the other side to get its inverse like

\(\left[\begin{array}{ccc}x_1\\x_2\\\end{array}\right] = \left[\begin{array}{ccc}-2&-3\\6&1\\\end{array}\right]^{-1}\left[\begin{array}{ccc}-23\\-3\\\end{array}\right]\)                                               (1)

The inverse of a 2X2 matrix is given by

\(A^{-1} = \left[\begin{array}{cc}a&b\\c&d\end{array}\right]^{-1} = \frac{1}{|A|} \left[\begin{array}{cc}d&-b\\-c&a\\\end{array}\right]\)

Hence we get

\(\left[\begin{array}{cc}-2&-3\\6&1\\\end{array}\right]^{-1} = \frac{1}{16} \left[\begin{array}{cc}1&3\\-6&-2\\\end{array}\right] = \left[\begin{array}{cc}\frac{1}{16} &\frac{3}{16}\\\frac{-3}{8}&\frac{1}{8}\\\end{array}\right]\)

Now we will put the value of the inverse obtained in the equation above we will now multiply the two matrices in the RHS to get the value of x₁ and x₂

\(\left[\begin{array}{cc}x_1\\x_2\end{array}\right] = \left[\begin{array}{cc}\frac{1}{16} &\frac{3}{16}\\\frac{-3}{8}&\frac{1}{8}\\\end{array}\right] \left[\begin{array}{cc}-23\\-3\end{array}\right] = \left[\begin{array}{cc}-2\\9\end{array}\right]\)

Hence here we get the value of x₁ and x₂ to be -2 and -9 respectively.

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