There were 69 adults and 72 children who attended the concert.
Let's assume that the number of adult tickets sold is represented by A, and the number of children tickets sold is represented by C. We have two equations based on the given information:
A + C = 141 (Equation 1)
3.25A + 1.75C = 345.75 (Equation 2)
From Equation 1, we can rewrite it as A = 141 - C and substitute it into Equation 2:
3.25(141 - C) + 1.75C = 345.75
Expanding and simplifying the equation, we get:
458.25 - 3.25C + 1.75C = 345.75
-1.5C = -112.5
C = 75
Substituting the value of C into Equation 1, we find:
A + 75 = 141
A = 66
Therefore, there were 66 adults and 75 children who attended the concert.
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Which inequality represents the sentence? The difference of seven and two tenths and a number is more than twenty nine. 7. 2 - n > 29 n - 7. 2 Greater-than-or-equal-to 29 7. 2 - n < 29 n - 7. 2 < 29.
The inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is
\(7.2-n > 29\)
What is the inequality equation?Inequality equation is the equation in which the two expressions are compared with greater than, less than or other inequality signs.
Inequality is represented with the greater then(<), less then(>) or with the other inequity signs like less than equal to \(\leq\) or greater than equal to \(\geq\).
Tenth is written as the fractional part of the number 10. The value of one tenth is equal to 1/10 or 0.1.
The sentence given for the inequality expression is, that the differences of seven and two tenths, and a number is more than twenty-nine.
The number seven and two tenths can be written as,
\(7\dfrac{2}{10}\)
Suppose the unknown number is n. Now, the differences of seven and two tenths, and this number (n) is more than twenty-nine. The more than word means, the greater than sign for equation. Thus, it can be expressed as,
\(7\dfrac{2}{10}-n > 29\\\dfrac{72}{10}-n > 29\\7.2-n > 29\)
Hence, the inequality which represent, the difference of seven and two tenths and a number is more than twenty-nine, is
\(7.2-n > 29\)
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Please help what's the answer
A is the answer to the question
Hope it helps
Answer:
the answer is A
Step-by-step explanation:
(4, 1)
x = 4 y = 1
x + 2y = 6
4 + 2(1) = 6
4 + 2 = 6
x - y = 3
4 - 1 = 3
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17. Jing has $800 to deposit into two different savings accounts.
•She will deposit $600 into an account that earns simple interest annually at a rate
of 2.75%.
•She will deposit $200 into an account that earns 2.5% interest compounded
annually.
Jing will not make any additional withdrawals or deposits. Which amount is closest
to the total balance of the two accounts at the end of 3 years?
Answer:
$864.88
Step-by-step explanation:
(1. $600 + $49.50 = $649.50
(2. $200 + $15.38 = $215.38
$649.50 + $215.38 = $864.88
A = $864.88
Find the measure of angle x. 217 ° х 103 160 O 320 57 O 114
Answer: 145
Step-by-step explanation:
check
10
3
А.
B
1+
2+
EF
G/H
Which of the following are corresponding angles?
O A. DC and 2F
OB. ZA and ZE
OC. E and 2H
OD. A and
Answer:
why don't u send the pictures so I can help u out
Based on the 2017 American Community Survey, the proportion of the California population aged 15 years old or older who are married is p = 0.482. Suppose n = 1000 persons are to be sampled from this population and the sample proportion of married persons (p) is to be calculated. What is the probability that more than 50% of the people in the sample are married? Round your answer to three decimal places.
Therefore, the probability that more than 50% of the people in the sample are married is approximately 0.115 (rounded to three decimal places).
To solve this problem, we can use the normal approximation to the binomial distribution since the sample size is large (n = 1000) and the proportion of married persons (p) is not too close to 0 or 1.
The mean of the sample proportion can be calculated as:
μ = p = 0.482
The standard deviation of the sample proportion can be calculated as:
σ = sqrt((p * (1 - p)) / n) = sqrt((0.482 * (1 - 0.482)) / 1000) ≈ 0.015
To find the probability that more than 50% of the people in the sample are married, we need to calculate the z-score and find the area under the normal curve to the right of this z-score.
The z-score can be calculated as:
z = (x - μ) / σ = (0.5 - 0.482) / 0.015 ≈ 1.200
Using a standard normal distribution table or a calculator, we can find that the area to the right of z = 1.200 is approximately 0.1151.
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Pls, help I have a soccer game and is my first one and don't wanna miss it :(
Answer:
14.
The card in 1997 is $9.98
The card in 1998 is $12.50
The card worth 1999 is $15.02
The relationship is not proportional as the ratio of year to value would be constant .
15.
A) d = 2/3m
B) d=40h
Step-by-step explanation:
Which of the following coordinates represent a point on the y-axis? Choose all that apply.
A. left-parenthesis 0 comma negative 4 right-parenthesis
B. left-parenthesis 1 comma 1 right-parenthesis
C. left-parenthesis negative 2 comma 0 right-parenthesis
D. left-parenthesis 0 comma 3 right-parenthesis
Answer:
the kahn anwser is c
Step-by-step explanation:
Lauren can knit 3 scarves in 2 days. If she asks Chrissy to help, they can do the same job together in 1.5 days. If Chrissy works alone, how long would it take, in days, for Chrissy to knit 3 scarves
Chrissy can knit 0.5 scarves in one day. It would take her 6 days to knit 3 scarves working alone.
Here, Using the unitary method
Lauren can knit 3 scarves in 2 days, which means her rate is 3/2 scarves per day. When Lauren and Chrissy work together, they can knit the same 3 scarves in 1.5 days, which means their combined rate is 2 scarves per day.
We want to find out how long it would take Chrissy to knit 3 scarves working alone.
Let the number of days it takes Chrissy to knit 3 scarves be d. Then her rate is 3/d scarves per day. We know that when Chrissy and Lauren work together, their combined rate is 2 scarves per day, so we can set up the equation
3/2 + 3/d = 2
Multiplying both sides by 2d, we get
3d + 6 = 4d
Simplifying, we get
d = 6
Therefore, it would take Chrissy 6 days to knit 3 scarves working alone.
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solve and check 0.18(5x – 4) = 0.5x + 0.8
Answer:
3.8
Step-by-step explanation:
0.18(5x – 4) = 0.5x + 0.80.9x - 0.72= 0.5x +0.80.9x- 0.5x= 0.8+0.720.4x= 1.52x= 1.52/0.4x= 3.8----------
0.18(5*3.8 - 4)= 0.5*3.8 + 0.80.18*15= 1.9 + 0.82.7=2.7Answer:
3.8solution,
\(0.18(5x - 4) = 0.5x + 0.8 \\ or \: 0.9x - 0.72 = 0.5x + 0.8 \\ or \: 0 .9x - 0.5x = 0.8 + 0.72 \\ or \: 0.4x = 1.52 \\ or \: x = \frac{1.52}{0.4} \\ x = 3.8\)
hope this helps..
Good luck on your assignment..
Mike and his friends bought cheese waters for $4 per packet and chocolate wafers for $3 per packet at a camival. They spent a total of $36 to buy a total of 10 packets of waters of the two varieties
Part A: Write a system of equations that can be solved to find the number of packets of cheese wafers and the number of packets of chocolate wafers that Mike and his friends bought at the camival Define the variables used in the
equations (4 points)
Part B: How many packets of chocolate wafers and cheese wafers did they buy? Explain how you got the answer and why you selected a particular method to get the answer
The system of equations is:
x + y = 10
4x + 3y = 36
The solution is x = 6 and y = 4.
How to write the system of equations?A)
Let's define the variables:
x = number of cheese wafers.y = number of chocolate wafers.We can write the system of equations:
x + y = 10
4x + 3y = 36
Isolate x on the first equation to get:
x = 10 - y
Replace that in the other one:
4*(10 - y) + 3y = 36
40 - 4y + 3y = 36
40 - y = 36
40 - 36 = y
4 = y
And thus, the value of x is:
x = 10 - y = 10 - 4 = 6
They bought 6 cheese wafers and 4 chocolate ones.
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Write an equation that represents a vertical translation 7 units down of the graph of g(x)=|x|.
Answer:
g(x) = |x| - 7
Step-by-step explanation:
Given the parent function, g(x) = |x|, and its vertex at (0, 0):
Vertical translations: g(x) = |x| + k where:
k > 0, shifts up |k | units
k < 0, shifts down |k | units
Thus, a vertical translation of the parent graph can be represented with the following absolute value function:
g(x) = |x| - 7
where the vertex occurs at point, (0, -7).
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The results of a two-tailed hypothesis test are reported as follows: t(21) = 2.38, p < .05. What was the statistical decision and how big was the samp
The statistical decision based on the reported results of the hypothesis test is that the null hypothesis was rejected at the α = .05 significance level.
The t-value reported is 2.38, and the degrees of freedom are 21. This suggests that the test was likely a t-test with an independent samples design, where the sample size was n = 22 (since df = n - 1).
The p-value reported is less than .05, which indicates that the probability of obtaining the observed results, or results more extreme, under the assumption that the null hypothesis is true, is less than .05. Therefore, the null hypothesis is rejected at the .05 significance level in favor of the alternative hypothesis.
In conclusion, the statistical decision is that there is sufficient evidence to suggest that the population means are not equal, and the sample size was 22. However, we do not have information about the direction of the effect (i.e., whether the difference was positive or negative).
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What is the area of this polygon?
Answer:
We need more info
Step-by-step explanation:
11 points Please answer quick.
Divide (x^5 - x^4 + x^3 - x^2 + x -1) by (x-1)
show your calculation
If you don't know don't answer.
If you do it I will report the answer.
Answer:
\(\boxed{x^4 + x^2 + x}\)
Step-by-step explanation:
\(\frac{x^5 - x^4 + x^3 -x^2 + x - 1}{x - 1}\)
\(= \frac{(x - 1)(x^4 + x^2 + x)}{x - 1}\)
\(= x^4 + x^2 + x\)
.
Happy to help :)
solve 6x + 6 = 3x - 6
Answer:
x = -4
I hope it's helps you t
Answer:
x = -4
Step-by-step explanation:
Simplifying
6x + 6 = 3x + -6
Reorder the terms:
6 + 6x = 3x + -6
Reorder the terms:
6 + 6x = -6 + 3x
Solving
6 + 6x = -6 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
6 + 6x + -3x = -6 + 3x + -3x
Combine like terms: 6x + -3x = 3x
6 + 3x = -6 + 3x + -3x
Combine like terms: 3x + -3x = 0
6 + 3x = -6 + 0
6 + 3x = -6
Add '-6' to each side of the equation.
6 + -6 + 3x = -6 + -6
Combine like terms: 6 + -6 = 0
0 + 3x = -6 + -6
3x = -6 + -6
Combine like terms: -6 + -6 = -12
3x = -12
Divide each side by '3'.
x = -4
Construct an example with two random variables X and Y marginally Gaussian but whose sum is not jointly Gaussian.
The sum of X and Y, Z = X + Y, is also a Gaussian random variable with zero mean and variance σx + σy. However, W and Z are not jointly Gaussian.
Let us consider X and Y to be two independent Gaussian random variables with zero means and variances σx and σy, respectively. Let
W = aX + bY,
where a and b are two constants such that a + b ≠ 0.The sum of the two random variables X and Y is Z = X + Y.It is easy to see that Z is also a Gaussian random variable with zero mean and variance σx + σy.
Therefore, the covariance of W and Z is given by
cov(W, Z) = cov(aX + bY, X + Y) = aσx + bσy
This covariance depends on the values of a and b, and it is not zero in general, which means that W and Z are not jointly Gaussian. Thus, we can construct an example of two random variables X and Y that are marginally Gaussian but whose sum is not jointly Gaussian as follows:Let X and Y be two independent Gaussian random variables with zero means and variances σx and σy, respectively. Let W = aX + bY, where a and b are two constants such that a + b ≠ 0.
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Solve - 2x - 8> 3x + 12.
Please help!
Answer:
B. X < -4
Step-by-step explanation:
-2x - 8 > 3x + 12
Subtract 3x from both sides
-5x -8 > 12
Add 8 both sides
-5x > 20
Divide -5 both sides
X < -4
Answer: x < -4
Step-by-step explanation:
Subtract 3x from both sides
-5x - 8 > 12
Add 8 to both sides
-5x > 20
Divide both sides by -5
x < -4
Graph this system of equations on the coordinate plane: Use the Mark Feature tool to indicate the solution to the system on the graph. Drawing Tools Click on a tool to begin drawing.
drow application the way
If a car goes 65 miles in 2 hours, how many miles will it go in 5 hours?
Given the figure below, find the values of x and z.
Answer:
x = 8°, z = 67°
Step-by-step explanation:
To solve the given question, properties of perpendicular lines angles should be applied.
113 + z = 180 (supplementary angles)
z = 180 - 113
z = 67°
113 = 12x + 17 (vertically opposite angles are equal)
12x = 113 - 17
12x = 96
x = 96/12
x = 8°
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Solve for xxx in the diagram below.
Answer:
x = 34
Step-by-step explanation:
The three angles form a straight line and are thus supplementary angles. The sum of a supplementary angles is always 180, so we can use the equation 180 = x + 12 + 100 + x to find x:
180 = 2x + 112
68 = 2x
x = 34
solve the system by the addition methodx + 2y = 35× +5y = 5
x=-1, y =2 S { -1,2}
1) Solving that linear system
x + 2y = 3 x -5 To eliminate x
5× +5y = 5
-5x -10y = -15
5x +5y = 5
---------------------
-5y = -10
y =2
1.2 Plugging into the I equation:
x +2(2)= 3
x +4=3
x=-1
Given 4 and one tenth times negative 4 times 5 over 12, determine the product.
The word problem 4 and one tenth times negative 4 times 5 over 12 have a product of negative 8 and one fifth
How to find the product of the word problemMultiplication is one of the basic mathematical operator which is used to solve the given problem. It is the inverse of division. the result of multiplication is called the product
Rewriting the word problem 4 and one tenth times negative 4 times 5 over 12 to figures
4 1/10 * -4 * 5/10
solving the equation
= 4 1/10 * -4 * 5/10
= 41/10 * -4 * 5/10
= -41/5
= -8 1/5
The product of the multiplication is negative 8 and one fifth
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-5x-2=13, find x please
Explain the importance of the unit circle in trigonometry.
Answer: The unit circle is an essential tool in trigonometry because it helps in understanding and visualizing the relationships between angles and the values of the sine, cosine, and tangent functions.
The unit circle is a circle with a radius of one unit and centered at the origin of a coordinate plane. It is divided into 360 degrees or 2π radians. By placing this circle on the coordinate plane, we can easily determine the sine and cosine values of angles in standard position.
For any given angle θ, the sine value is the y-coordinate of the point where the terminal side of the angle intersects the unit circle, and the cosine value is the x-coordinate of that same point. The tangent function, which is the ratio of sine to cosine, can also be determined using the unit circle.
The unit circle also helps in understanding the periodicity of the sine and cosine functions. Since the circumference of the unit circle is 2π, the sine and cosine functions repeat themselves after every 2π radians or 360 degrees. This periodicity allows for the use of trigonometric identities and formulas to simplify and solve complex trigonometric equations.
In summary, the unit circle is an essential tool in trigonometry as it provides a visual representation of angles and their corresponding sine, cosine, and tangent values, and allows for the use of trigonometric identities and formulas to solve complex problems.
Question 1 and 2
Find the largest side of the triangle
No links Please !!!
Answer:
for the first problem the largest side of the triangle is the letter C
for number 2 the largest side of the triangle is the letter B
Step-by-step explanation:
which is bigger 3/11 or 3/12
Answer:
3/11
Step-by-step explanation:pls mark me brainliest
On the number line above, where would you find D so that it is 3/4 of the way from X to Y?
Answer:
14
Step-by-step explanation:
Distance between X and Y = 17 - 5 = 12
\(\dfrac{3}{4} \ of \ 12 = \dfrac{3}{4}*12=3*3=9\)
3/4 of the way from X to Y = 5 + 9 = 14
The manager of a school store orders 250 pencils at the beginning of the
school year to sell to students. The function f(x) = 250 – 7x represents the
number of pencils remaining after I days of school.
How many pencils are remaining after 14 days of school?
Answer:
152 pencils remain after 14 days of school.
Step-by-step explanation:
Replace x in this formula with 14 (14 days):
f(14) = 250 - 7(14) = 250 - 98 = 152
152 pencils remain after 14 days of school.
Answer:...
Step-by-step explanation: