At the city museum, child admission is $5.20 and adult admission is $9.70. On Thursday, 142 tickets were sold for a total sales of $1107.40. How many child tickets were sold that day?

Answer:

C.-20(X+2)

Step-by-step explanation:

I think you wrote -20% by mistake instead of -20x

Answer:

I think its 6

im not 100%sure

Step-by-step explanation:im in 7th grade tho

But can i get brainless

Answer:

6

Step-by-step explanation:

Have a good day :)

Answer:

x>1/2

Step-by-step explanation:

Answer:

45 mi/h = 66 feet per second

Answer:

-52

Step-by-step explanation:

- 7 -9( 5 )  SUBSTITUTE THE NUMBERS INTO EXPRESSION

-7 -45       TIMES -9 WITH 5

-52          ADD

           ( THEY ARE BOTH NEGATIVE SO THEY ARE STILL NEGATIVE )

LET'S GO ALGEBRAAAAAAAAAA

Answer: The value of the expression is -52

Step-by-step explanation:

Substitute c = -7 and y = 5 in the equation c-9y:

1) -7+-9·5

2) -7+-45

3) -52

Answer:

128 in^2

Step-by-step explanation:

L * W

16 * 8 = 128 in^2

Answer:

The answer to this question is 48 feet

Step-by-step explanation:

You would see that 1 inch is 3 feet then you would multiply 3 and 16 to receive 48

The simplification of the expression 6 + (5 + x) is 11 + x

6 + (5 + x)

Based on the associative property

= (6 + 5) + x

Add 6 and 5

= 11 + x

Associative property states that the rearranging of parenthesis in an expression will not change the result.

Commutative property on the other hand states that the numbers on which we operate can be interchanged or moved from their position without making any difference to the result.

Ultimately, the results of 6 + (5 + x) is 11 + x

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Answer:

the answer to that question is 11/16

Using the probability principle, the probability of picking two tiles which sums above 7 is 11/16.

Recall :

The only way to choose two tiles which sums up to a number greater than 7 would be :

Since selection is performed with replacement ;

The probability of choosing two tiles whose sum is greater than 7 ;

Hence, probability of choosing tiles with a sum greater than 7 is 11/16

Therefore, the probability of picking two tiles which sums above 7 is 11/16.

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The main difference between finitely repeated and infinitely repeated games is the number of times the game is played.

Players in a game that is finitely repeated have a limited amount of opportunities to observe and react to each other's actions. Depending on the number of rounds and their perceptions of the other player's actions, players can employ a range of strategies.

Players can see and react to each other's activities an endless number of times in an infinitely repeated game. Now that long-term collaboration and punishment are options, this alters the methods that players can employ.

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Answer:

17792.3792

Step-by-step explanation:

:))))))

Answer: 18

Step-by-step explanation: Use PEMDAS

The worsening of the residual after a certain number of iterations in GMRES can be caused by ill-conditioning or the presence of an eigenvalue near zero. You can try using preconditioning, adjusting the convergence criteria, or using a different iterative solver to address this issue.

When the residual worsens after a certain number of iterations in GMRES, it is an indication of either the matrix being ill-conditioned or the presence of an eigenvalue near zero.

In the case of Laplace dominated differential equations with high derivatives in both x and y, the resulting matrix can be ill-conditioned, leading to numerical instabilities during the GMRES iteration. This instability can be caused by rounding errors, truncation errors, and/or machine precision.

To address this issue, you can try the following:

Check if the matrix is ill-conditioned using a matrix condition number estimator. If the condition number is large, then the matrix is ill-conditioned and may require preconditioning to stabilize the iterative solver.

Use preconditioning techniques to improve the convergence of GMRES. Preconditioning refers to transforming the original system into a more favorable one for iterative methods. Common preconditioning methods include incomplete LU factorization (ILU), multigrid methods, and domain decomposition methods.

Use a different iterative solver that may be more suitable for the particular characteristics of the matrix, such as BiCGStab or CGNR.

Adjust the convergence criteria of the solver. If the residual begins to worsen after a certain number of iterations, it may be beneficial to stop the solver earlier than usual or to use a different stopping criterion.

Increase the precision of the numerical computations, either by increasing the number of significant digits or by using a higher precision data type.

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a) The probability of a randomly selected diner waits less than 8 minutes for a table is 0.4

b) The probability of a randomly selected diner waits more than 1.5 minutes is 0.925

Given, wait times of between 0 and 20 minutes at a local restaurant follow a uniform distribution.

The probability density function of a uniform distribution is given by

f(x) = {1/(b-a)} where a ≤ x ≤ b

where a = 0 and b = 20

Therefore, the probability density function of f(x) = 1/20 for 0 ≤ x ≤ 20

For the  probability that a randomly selected diner waits between 2 and 7.5 minutes for a table, we need to find the area under the curve from x = 2 to x = 7.5

∴ P(2 ≤ x ≤ 7.5) = ∫₂⁷.⁵(1/20) dx

= 5.5/20 ⇒ 0.275

a) We need to find the area under the curve from x = 0 to x = 8

∴ P(x < 8) = ∫₀⁸(1/20) dx

= 8/20 ⇒ 0.4

b) We need to find the area under the curve from x = 1.5 to x = 20

∴ P(x > 1.5) = ∫₁.₅²⁰(1/20) dx

= 18.5/20 ⇒ 0.925

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Given:-

Sum of four consecutive odd integers.

To find the required expression.

So the first term is n.

So the second term is n+2.

So the third term is n+4.

So the fourth term is n+6.

So the sum of terms is,

Where n is an odd integer.

Answer:

x = -8

y = -15

Step-by-step explanation:

-3x + y = 9

y = x - 7

-3x + x - 7 = 9

-2x - 7 = 9

-2x = 16

2x = -16

x = -8

y = -8 - 7

y = -15

The statement "new int[3]{1, 2, 3};" allocates an array of three initialized integers on the heap. This statement is True.

In C++, the "new" keyword is used to dynamically allocate memory on the heap. The statement "new int[3]{1, 2, 3};" allocates an array of three integers and initializes them with the values 1, 2, and 3.
The "new int[3]" part of the statement allocates memory for three integers on the heap. The square brackets [3] indicate that an array of size 3 should be allocated. The "int" specifies the type of the elements in the array.
The "{1, 2, 3}" part of the statement initializes the elements of the array with the specified values. In this case, the array elements are initialized to 1, 2, and 3 respectively.
By using the "new" keyword with the initialization values enclosed in curly braces, the array is allocated on the heap and the elements are initialized at the same time.L
Therefore, the statement "new int[3]{1, 2, 3};" does indeed allocate an array of three initialized integers on the heap, making the statement True.

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Depending on what information you have, you can find the base, height, side lengths, diagonals, or angles of a parallelogram.

In a parallelogram, there are several variables that you could find depending on what information you have. Here are some common variables you might encounter:

Base: The base of a parallelogram is one of its sides. If you know the length of the base and the height (or perpendicular distance) of the parallelogram, you can calculate its area.

Height: The height of a parallelogram is the perpendicular distance between the base and the opposite side. If you know the length of the base and the height, you can calculate its area.

Side lengths: If you know the lengths of two adjacent sides of a parallelogram and the angle between them, you can use the law of cosines to find the length of the other two sides.

Diagonals: The diagonals of a parallelogram are the line segments that connect opposite vertices. If you know the length of the diagonals and the angle between them, you can use the law of cosines to find the length of the sides.

Angles: If you know the measures of two adjacent angles in a parallelogram, you can use the fact that opposite angles are congruent to find the measures of the other two angles.

So, depending on what information you have, you can find the base, height, side lengths, diagonals, or angles of a parallelogram.

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Step-by-step explanation:

you first multiply both sides by 4

hence,

40 > 5u > 30

then you just divide by 5 to get

8 > u > 6

The value of the exponent 5^2 is equivalent to 25

According to the equation, we are to write the expression 5^2 as a product

Since the exponent is 2, hence the value the base will be repeated twice.

Given

5^2 = 5^1 * 5^1

5^2 = 5 * 5

5^2. = 25

Hence the value of the exponent 5^2 is equivalent to 25

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The possible values of k are -0.56, -3.56, -2 and -1.

We have the equation of the parabola, y = 0.5 (x- 3 ) ( x+ k)

Substituting x=0, we get that i.e. y =0.5 * (-3) * k -1.5k

So, the y-intercept is (0,-1.5k).

Thus, the height of the triangle becomes |-1.5k| = 1.5k

Again, substituting y=0, 0 = 0.5 (x-3) (x+k) i.e. i.e. x0=(x-3) (x+k)=3 and x=-k

So, the x-intercepts are (3,0) and (-k,0).

Thus, the base of the triangle is 3+k if k>-3 or -3-k if k<-3.

As, area of a triangle = 1/2 * (base )* (height )

Substituting the values, we get,

1.5=1/2 *(3+k)*(1.5k)

i.e.3= 4.5 k + 1.5k ²

i.e. k = -0.56 and k = -3.56

or

1.5=1/2* (-3-k )*(1.5k)

i.e.

3 = -4.5 k - 1.5²

i.e. k = -2 and k = -1.

Thus, the possible values of k are -0.56, -3.56, -2 and -1.

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Answer: A quartile is a type of quantile that splits a data set into four equal parts. The first quartile (Q1) is also known as the lower quartile and is the value that separates the lowest 25% of the data from the rest. The second quartile (Q2) is also known as the median and is the value that separates the lowest 50% of the data from the highest 50%. The third quartile (Q3) is also known as the upper quartile and is the value that separates the lowest 75% of the data from the highest 25%.

In this case, the lower quartile (Q1) is 65, the median is 78, and the upper quartile (Q3) is 92.

Step-by-step explanation:

Given that a wine taster claims that she can distinguish four vintages of a particular Cabernet. A vintage is a term used for the year a wine was produced in the context of wine. In simpler terms, the year in which the grapes were grown is known as a vintage.

The wine taster claims that she can distinguish four vintages of a particular Cabernet. What is the probability that she can do this by merely guessing?

Answer: Given that a wine taster claims that she can distinguish four vintages of a particular Cabernet. A vintage is a term used for the year a wine was produced in the context of wine. In simpler terms, the year in which the grapes were grown is known as a vintage. These grapes are then processed, fermented, and aged in oak barrels to produce wine. Each vintage year has a distinct taste profile that distinguishes it from others. The Cabernet Sauvignon is a red wine grape variety that is known for producing red wine. The wine taster claims that she can distinguish four vintages of a particular Cabernet. Since she has four distinct vintages of Cabernet to choose from, her probability of getting a correct guess on the first attempt is 1/4. The probability of guessing the correct vintage again is 1/4. Following the same logic, the probability of guessing the correct vintage four times in a row is 1/4 raised to the power of four.

P(A) = 1/4 × 1/4 × 1/4 × 1/4. Therefore, the probability of her guessing correctly on all four attempts is (1/4)4. Which is equal to 1/256. This means that if the wine taster were to guess on her own, her chances of correctly identifying all four vintages would be 1/256, or approximately 0.4 percent. If a wine taster is claiming that she can distinguish between four distinct vintages of Cabernet, we need to determine if it is possible for her to do so simply by guessing. A vintage is defined as the year in which grapes are harvested to make wine. In the context of wine, each vintage year has a unique flavor profile that distinguishes it from other vintages. Cabernet Sauvignon is a well-known red wine grape variety that is commonly used to make red wine.

The wine taster claims that she can distinguish four vintages of Cabernet, which means she has four choices to select from when tasting. The probability of the wine taster guessing the correct vintage on the first try is 1/4, since she has four distinct options to choose from. Similarly, the probability of the taster guessing the correct vintage a second time is also 1/4, and the same applies to the third and fourth times.The probability of the taster guessing the correct vintage all four times in a row is (1/4)4 or 1/256. This means that if the wine taster were to guess on her own, her chances of correctly identifying all four vintages would be 1/256, or approximately 0.4 percent. As a result, if the wine taster claims to have correctly identified all four vintages, it is unlikely that she did so by merely guessing.

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Answer:

c. ( 5, 3)

Step-by-step explanation:

y = 6x - 27

y = 4x - 17

6x - 27 = 4x - 17

2x = 10

x = 5

y = 4x - 17

y = 4(5) - 17

y = 3

x = 5; y = 3

Answer: c. ( 5, 3)

Answer:

w = 300 + 0.15x

Step-by-step explanation:

Let x = weekly sales

Since there is a fixed remuneration of $300, that will be a constant in the linear equation

15% = 15/100 = 0.15 in decimal

15% commission on x dollars of sales = 0.15x

Therefore total weekly pay, w, in terms of x

w = 300 + 0.15x

Answer: C. The answer i got was C

Answer: 904.32 cm^3

Step-by-step explanation:

The formula to finding the volume of a sphere is (V=4/3(3.14)r^3

So in this case it would be (V=4/3(3.14)(6)^3

The radius is half the diameter so that's how I got 6.

The answer after multiplying everything would be 904.32

Answer:

80%

Step-by-step explanation:

please give brainliest

There is a 20% chance that a risky stock investment will end up in a total loss. If you invest in 25 independent risky stocks, the probability that fewer than six of these 25 stocks end up in total losses is approximately 0.91.

Given data:

Probability of getting a total loss in one investment = 20% = 0.20

Probability of not getting a total loss in one investment = 1 - 0.20 = 0.80

Number of investments = 25

We need to find the probability that fewer than six out of these 25 risky investments end up in total losses.

We will use the binomial distribution formula here:P(X < 6) = Σp(x) (from x = 0 to x = 5)

Here, Σ is the summation signp(x) = probability of x successes in 25 trials, which is given by the formula:

p(x) = [ nCx * p^x * (1-p)^(n-x)]

Where, n = number of trial

s = 25

p = probability of success = 0.80

q = probability of failure = 1 - p = 0.20n

Cx = n! / (x! × (n-x)!) = combination of n items taken x at a time

We need to substitute these values in the formula and calculate the probability:

P(X < 6) = Σp(x) (from x = 0 to x = 5)

P(X < 6) = p(0) + p(1) + p(2) + p(3) + p(4) + p(5)

P(X < 6) = \([25C0 * (0.80)^0 * (0.20)^25] + [25C1 * (0.80)^1 * (0.20)^24] + [25C2 * (0.80)^2 * (0.20)^23] + [25C3 * (0.80)^3 * (0.20)^22] + [25C4 * (0.80)^4 * (0.20)^21] + [25C5 * (0.80)^5 * (0.20)^20]\)

P(X < 6) ≈ 0.91

Therefore, the probability that fewer than six of these 25 stocks end up in total losses is approximately 0.91.

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Answer:

a) \(p \geq 60\,ft^{2}\), b) \(w \geq 36\,ft\), c) \(1\,qt \leq q \leq 2\,qt\), d) \(0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65\)

Step-by-step explanation:

In this question we proceed to translate each sentence into mathematical language and, more specifically, inequations:

a) At least 60 square feet of plywood for the surface

Let \(p\) the surface area of plywood, measured in square feet, and the inequation is:

\(p \geq 60\,ft^{2}\) (Eq. 1)

b) At least 36 feet of wood planks for the frame of the dog house

Let \(w\) the total length of wood planks, measured in feet, and the inequation is:

\(w \geq 36\,ft\) (Eq. 2)

c) Between 1 and 2 quarts of paint

Let \(q\) the total capacity of paint, measured in quarts, and the inequation is:

\(1\,qt \leq q \leq 2\,qt\) (Eq. 3)

d) Han's budget is $ 65. Plywood costs $ 0.70 per square foot, planks of wood cost $ 0.10 per foot and paint costs $ 8 per quart.

Dimensionally speaking, we understand that cost equals unit cost multiplied by physical variable (i.e. Area, length or capacity). Let \(p\), \(w\) and \(q\) the surface area of plywood, the total length of wood planks and the total capacity of paint, respectively. The sentence is represented by the following inequation:

\(0.70\cdot p + 0.10\cdot w + 8\cdot q \leq 65\) (Eq. 4)

Write an inequality to represent each constraint(material and cost)

Plywood:

plywood ≥ 60 square feet

Planks:

planks ≥ 36 feet

Paints

1 quarts ≤ paints ≤ 2 quarts

Inequality to represent cost constraint

Plywood = $0.70

planks of wood = $0.10

paint costs $8

Total cost = $65

0.70 × p + 0.10 × pw + 8 × Pa ≤ 65

0.70p + 0.10pw + 8pa ≤ 65

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The identity diagonals of square jklm, jk and lm, are congruent and are also perpendicular bisectors of each other. This is shown by the fact that their midpoints (i.e. (-3.5, -2) and (2.5, -3)) are equidistant from their endpoints.

The diagonals of square jklm, jk and lm, are congruent to each other as they have the same length. Additionally, they are perpendicular bisectors of each other, which means that they divide the square into two congruent right triangles. This is demonstrated by the fact that the midpoints of the diagonals (i.e. (-3.5, -2) and (2.5, -3)) are equidistant from the endpoints of the diagonals. Furthermore, the diagonals intersect at the midpoint of the square, which is the intersection of the perpendicular bisectors. This shows that the two diagonals of the square jklm are congruent perpendicular bisectors of each other.

jk = √((-4- (-3))^2 + (1 - (-5))^2) = √(1 + 36) = √37

lm = √((3 - 2)^2 + (-4 - 2)^2) = √(1 + 36) = √37

midpoint of jk = (-3.5, -2)

midpoint of lm = (2.5, -3)

distance from midpoint of jk to j = √((-3 - (-3.5))^2 + (-5 - (-2))^2) = √(0.25 + 9) = √9.25

distance from midpoint of lm to l = √((2 - 2.5)^2 + (2 - (-3))^2) = √(0.25 + 9) = √9.25

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