Answer:
18a+kStep-by-step explanation:
The total number of tickets is the sum of the number of adult tickets and the number of kid tickets.
Total tickets, 2 adult tickets and 16 kids tickets: 2 +16 = 18
Total tickets, a adult tickets and k kids tickets: a +k
_____
Additional comment
The total price is a different matter:
$12(2) +$7(16) = $136 . . . for 2 adult and 16 kids
12a +7k . . . for 'a' adults and 'k' kids
One number is three times another number. If the sum of the numbers is 36, determine the two numbers.
Step-by-step explanation:
A=3B
A+B=36
3B+B=36
4B=36
B=36/4
Step-by-step explanation:
let x represent the smaller number
3x is the second number
x+3x=36
4x=36
4x/4=36/4
x=9
the second number is 3(9)
=27
find the value of a and b if \(5+√3/7+2√3=a-b√3\)
Answer:
The values of \(a\) and \(b\) are \(5\) and \(-\frac{15}{7}\), respectively.
Step-by-step explanation:
There are mistakes in the statement, correct form is presented below:
\(5+\frac{\sqrt{3}}{7} + 2\sqrt{3} = a - b\cdot \sqrt{3}\).
By direct comparison we have the following system of equations:
\(a = 5\) (1)
\(\frac{\sqrt{3}}{7}+2\sqrt{3} = -b\cdot \sqrt{3}\) (2)
In (2) we solve for \(b\):
\(\left(\frac{1}{7}+2 \right)\cdot \sqrt{3} = -b\cdot \sqrt{3}\)
\(b = -\frac{15}{7}\)
The values of \(a\) and \(b\) are \(5\) and \(-\frac{15}{7}\), respectively.
BEST ANSWER GETS BRAINLIEST AND A LOT OF POINTS
There is no actual way for us to help you since its a graph
jim is going to buy donuts for his family. each donut costs $1.45. if the number of donuts jim buys is represented using the letter d, which expression represents the total cost? a 1.45d b 1.45/d c 1.45 d d 1.45 - d
By applying total cost concept, it can be concluded that the expression represents the total cost is 1.45d (option A).
Algebra is a branch of mathematics that uses symbols and mathematical operations, such as addition, subtraction, multiplication, and division to solve problems.
It is usually used to solve a problem in various fields of study, such as chemistry, biology, economics, and so on.
One of the most familiar uses of algebra is how to calculate the total cost:
Total cost = n x p , where:
n = number of products
p = product price per piece
We know that Jim is going to buy donuts for his family:
p = $1.45
n = d
So the total cost can be calculated by multiplying 1.45 by d, which equals 1.45d.
Thus the expression represents the total cost is 1.45d (option A).
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Solve x^2 -24 = -80 by completing the square.
What is the solution set of the equation?
A.(2,40)
B.(4,20)
C.(5,16)
D.(8,10)
Answer:
B.(4,20)
Step-by-step explanation:
Given: \(x^2 -24x = -80\)
To solve the quadratic equation by completing the square, we follow these steps.
Step 1: Divide the coefficient of x by 2
\(-\dfrac{24}{2}=-12\)
Step 2: Square your result fro Step 1
\((-12)^2\)
Step 3: Add the result form step 2 to both sides of the equation
\(x^2 -24x+(-12)^2 = -80+(-12)^2\)
Step 4: Rewrite the Left hand side in the form \((x+k)^2\)
\((x-12)^2=-80+144\\(x-12)^2=64\)
Step 5: Take square roots of both sides
\(x-12=\pm \sqrt{64}\)
Step 6: Solve for x
\(x=12\pm \sqrt{64}\\=12\pm8\\x=12+8$ or x=12-8\\x=20 or x=4.\)
Therefore, the solution set of the equation is (4,20).
PLEASE HELPP ME IM GONNA FAIL
Answer:
90 degrees.
Step-by-step explanation:
They right ray point is on the 90 degree number and left ray is on zero so we find the difference.
90-0=90
so it measures 90 degrees.
Answer:
<ba=180 <bc=90
Step-by-step explanation:
1/2+(-2/5) times ( -5/7) + 1/14
The value of the multiplication of the given fractions \((\frac{1}{2} - \frac{2}{5}) * (- \frac{5}{7} + \frac{1}{14} )\) is -9/ 140.
What are fractions?In mathematics, a fraction is used to denote a portion or component of the whole. It stands for the proportionate pieces of the whole. Numerator and denominator are the two components that make up a fraction.
What is multiplication of factors?A fraction multiplied by another fraction, an integer, or a set of variables is referred to as a fraction. The steps for multiplying fractions are as follows:
Add the numerator to the numerator to multiply. Add the denominator to the denominator and multiply. If necessary, simplify the fractions.
The multiplication of the given numbers is:
\((\frac{1}{2} - \frac{2}{5}) * (- \frac{5}{7} + \frac{1}{14} ) \\\\(\frac{5-4}{10} ) * (\frac{-10 + 1}{14} )\\\\\frac{1}{10} * \frac{- 9}{14} \\\\\frac{-9}{140}\)
Hence, value of the multiplication of the given fractions \((\frac{1}{2} - \frac{2}{5}) * (- \frac{5}{7} + \frac{1}{14} )\) is -9/ 140.
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Kai had a gross weekly paycheck of $616 last week. Kai worked 6 hours for 4 of the days and 8 hours on 1 day. What is Kai's hourly rate of pay?
a. $16. 21
b. $19. 25
c. $20. 53
d. $25. 67.
(18 points) What is the approximate area of the circle shown below?
Answer:
A
Step-by-step explanation:
because if you put in the radius of 3.7 you get 43.01 and if you round that up you get 43 which is A
What is the value of x in the figure below? In this diagram, ABD ~ CAD. А с B 13 D3 A. 16 B. 208 C. 39 D. 48 E. 13/16 F. 139
F. Square root of 39
Step-by-step explanation:
Value of \(\boldsymbol{x}\) is \(\boldsymbol{\sqrt{39}}\) units.
Option F. is correct.
Define similar triangles.Two triangles are said to be similar if their sides are proportional and their corresponding angles are equal.
\(\bigtriangleup ABD \sim \bigtriangleup CAD\)
\(\boldsymbol{\frac{AD}{CD}=\frac{BD}{AD} }\)
\(\frac{x}{13}=\frac{3}{x}\)
\(x^2=39\)
\(x=\sqrt{39}\) units.
Value of \(\boldsymbol{x}\) is \(\boldsymbol{\sqrt{39}}\) units.
Option F. is correct.
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Help pls find the area
Answer: 112 ft²
Step-by-step explanation:
The area of a triangle can be found with the equation
\(A=\frac{1}{2} bh\), where b is the base (bottom line of the triangle) and h is the height (the distance of the line from the peak of the triangle that forms a right angle with the base).
In this problem we are given the base and height: the base is 16 feet, and the height is 14 ft.
Therefore, the area is \(\frac{1}{2} *16*14\), which is 112 ft²
A local church has a total population consisting of 480 adult members. The church's administrators would like to estimate the average weekly donation per member per week. A random sample of 65 members was found to have an average donation of $50.40. Further, the population standard deviation is $12.30. The 95% confidence interval to estimate the average weekly donation is ________. Hint: don't forget the finite population correction factor.
The 95% confidence interval to estimate the average weekly donation per member is approximately $47.42 to $53.38.
To calculate the 95% confidence interval for the average weekly donation per member, we can use the following formula:
Confidence interval = Sample mean ± (Critical value) × (Population standard deviation / √(Sample size))
First, we need to determine the critical value corresponding to a 95% confidence level. Since the sample size is relatively large (n > 30), we can use the Z-distribution. The critical value for a 95% confidence level is approximately 1.96.
Next, we can substitute the given values into the formula:
Sample mean = $50.40
Population standard deviation = $12.30
Sample size = 65
Using these values, we can calculate the confidence interval:
Confidence interval = $50.40 ± (1.96) × ($12.30 / √(65))
Calculating the value inside the parentheses:
($12.30 / √(65)) ≈ $1.52
Substituting this value into the formula:
Confidence interval = $50.40 ± (1.96) × $1.52
Calculating the values outside the parentheses:
$1.96 × $1.52 ≈ $2.98
Substituting this value into the formula:
Confidence interval ≈ $50.40 ± $2.98
Therefore, the 95% confidence interval is $47.42 to $53.38.
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compare between quraan and sunna by mentioning two points and then
clairfy each point separately
The Quran and Sunnah are two primary sources of Islamic jurisprudence and belief. The Quran is the holy book of Islam, while Sunnah is the teachings of the Prophet Muhammad (peace be upon him).
There are two main differences between the Quran and Sunnah:
1. Content: The Quran contains the divine words of Allah, while the Sunnah is the teachings of the Prophet Muhammad (peace be upon him).
2. Authority: The Quran is the primary source of Islamic law and belief, while Sunnah is the secondary source, which provides clarification and further interpretation of the Quran.
Therefore, the Quran is the final authority on matters of Islamic law and belief, while the Sunnah is the interpretation and application of those laws.
The Qur'an is the holy book of Islam, believed to be the literal word of God as revealed to the Prophet Muhammad through the angel Gabriel. The Sunnah, on the other hand, is a collection of sayings and actions of the Prophet Muhammad, as recorded by his companions.
The Qur'an is considered the primary source of guidance for Muslims, and is seen as infallible and unchangeable. The Sunnah is considered a secondary source of guidance, used to help interpret and apply the teachings of the Qur'an in daily life.
Both the Qur'an and Sunnah are important sources of guidance for Muslims, and are used together to understand and practice the teachings of Islam. While the Qur'an is seen as the primary source of guidance, the Sunnah provides additional context and clarification on how to apply the teachings of the Qur'an in daily life
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Al and Betty want to create a playlist of songs for their drive back and forth to school. Since Al and Betty have different tastes in music, they decide to compromise by only playing Al’s favorite rap and Betty’s favorite pop music that they can both agree upon.
Betty wants to include at least as many pop songs as rap songs. Al, in return, wants to include at least five rap songs. To provide enough variety to make the playlist interesting, they decide to include at least 20 songs altogether.
To create the playlist, Al and Betty will need to purchase the songs. They will have to pay $1.50 for each rap song and $1.00 for each pop song. How many of each type should they put on their playlist to minimize their cost?
Express the length of the hypotenuse of a right triangle in terms of its area, A. and its perimeter, P Q2. At one ski resort, skiers had to take two lifts to reach the peak of the mountain. They travel 2200 m at an inclination of 47° to get a transfer point. They then travel 1500 m at an inclination of 52°. How high was the peak? Q3. Solve the following triangles a) APQR if QR = 25 cm, PR = 34 cm, ZPRQ = 41° b) ADEF if EF = 11.3 cm, ZDEF = 84°, ZEDF = 31° Q4. Create a real-life problem that can be modelled by an acute triangle. Then describe the problem, sketch the situation in your problem, and explain what must be done to solve it.
The length of the hypotenuse of a right triangle can be expressed in terms of its area, A, and its perimeter, P, as √(P² - 4A).
What is the mathematical relationship between the hypotenuse's length, area, and perimeter?To find the length of the hypotenuse, you can use the formula √(P² - 4A), where P is the perimeter and A is the area of the triangle.
This formula is derived from the Pythagorean theorem, which states that in a right triangle, the square of the hypotenuse's length is equal to the sum of the squares of the other two sides.
In the given ski resort scenario, the skiers travel 2200 m at an inclination of 47° and then 1500 m at an inclination of 52°.
To determine the height of the peak, we can treat the total distance traveled by the skiers as the hypotenuse of a right triangle, and the two inclined distances as the lengths of the other two sides.
By applying trigonometric functions such as sine and cosine, we can calculate the height of the peak.
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A movie with an aspect ratio of 1.85:1 is shown as a letterboxed image on a newer 50-inch 16:9 television. Calculate the height of the image, the height of each barely visible black bar at the top and bottom of the screen, and the percent of the screen’s area that is occupied by the image. Use a variety of representations to justify your response.
The aspect ratio of a Television is the ratio of the width to the height of the television.
The height of image on the 50-inch television is 24.48 inchesThe height of each black bar is 23.52 inchesThe percentage of the screen area occupied is 96.08%The size of a TV is calculated using Pythagoras theorem. Assume the length ratio of the new 50-inch 16:9 TV is x.
The ratio is represented as:
\(Width : Height = 16 : 9\)
Using Pythagoras theorem, we have:
\((16x)^2 + (9x)^2 = 50^2\)
\(256x^2 + 81x^2 = 2500\)
\(337x^2 = 2500\)
Divide both sides by 337
\(x^2 = 7.42\)
Take square roots of both sides
\(x = \sqrt{7.42\)
\(x = 2.72\)
So, the width of the image is:
\(Width = 16x\)
\(Width = 16 \times 2.72\)
\(Width = 43.52\)
The height of the image is then calculated as:
\(Height = 9x\)
\(Height = 9 \times 2.72\)
\(Height = 24.48\)
The height of the image is 24.48 inches
The height of each black bar is calculated as follows:
\(Width : Height = 1.85 : 1\)
Express as fraction
\(\frac{Height}{Width}= \frac{1}{1.85}\)
Make Height the subject
\(Height = \frac{1}{1.85}\times Width\)
Substitute \(Width = 43.52\)
\(Height = \frac{1}{1.85}\times 43.52\)
\(Height = 23.52\)
The height of each black bar is 23.52 inches
Lastly, the percentage of the screen’s area that is occupied by the image
First, we calculate the area of the bars
\(A_1 = Height \times Width\)
Where:
\(Height = 23.52\) and \(Width = 43.52\)
So:
\(A_1 = 23.52 \times 43.52\)
\(A_1 = 1023.59\)
Next, calculate the area of the 50-inch TV
\(A_2 = Height \times Width\)
Where
\(Width = 43.52\) and \(Height = 24.48\)
So:
\(A_2 = 24.48 \times 43.52\)
\(A_2 = 1065.37\)
So, the percentage occupied on the screen area is:
\(\% Screen = \frac{A_1}{A_2} \times 100\%\)
\(\% Screen = \frac{1023.59}{1065.37} \times 100\%\)
\(\% Screen = \frac{102359}{1065.37} \%\)
\(\% Screen = 96.08 \%\)
Hence, the percentage of the screen area occupied is 96.08%
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What is the area of this trapezoid?
a car goes from point a to point b. the speed of the car is constant at 78 km/hr for 63% of the total distance. at that point the weather gets bad and the car covers the remaining distance at 45 km/hr. if the total time of travel from a to b was 3.3 hours, what is the distance between the two points? write your answer in km. note: the time is in a decimal, not hours and minutes.
The distance between point A and point B is 214.807 km.
To find the distance between point A and point B, we can use the formula: distance = speed * time.Let's call the total distance between point A and point B "d".
For the first part of the journey, when the car was traveling at a constant speed of 78 km/hr, the distance traveled was 63% of the total distance, or 0.63d. The time taken for this part of the journey was 3.3 hours * 63% = 2.099 hours. Therefore, the distance traveled in this part of the journey was 78 km/hr * 2.099 hours = 160.862 km.
For the second part of the journey, when the car was traveling at a constant speed of 45 km/hr, the distance traveled was the remaining 37% of the total distance, or 0.37d. The time taken for this part of the journey was 3.3 hours - 2.099 hours = 1.201 hours. Therefore, the distance traveled in this part of the journey was 45 km/hr * 1.201 hours = 53.945 km.
Adding up the distance traveled in both parts of the journey gives us a total distance of 160.862 km + 53.945 km = 214.807 km.
So, the distance between point A and point B is 214.807 km.
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A regular hexagonal prism has an edge length 11 cm, and height 8 cm. Identify the volume of the prism to the nearest tenth.
Answer:
it may be V ≈ 4191.6 cm3 so sorry if i'm wrong!!!
Step-by-step explanation:
Answer: V ≈ 2514.9 cm3
Step-by-step explanation:
To find the volume of the prism, first calculate the area of the base.
To find the apothem of the hexagonal base, recognize that the sum of the measures of the interior angles in a hexagon is (6−2)⋅180°=720°. So, the interior angle has measure 720°6/=120°.
The base angle of the triangles with the hexagon's sides as their base is one-half of 120°, or 60°. The apothem bisects these triangles to form two right triangles with the short leg length of 5.5 cm.
By the definition of tangent, tan 60°=?/5.5.
Solve for ?.
?=5.5 ⋅ tan 60°
Therefore, the apothem length equals 5.5 ⋅ tan 60°.
The area of a hexagonal base.
B=6⋅(12⋅11⋅?)
Substitute 5.5⋅tan60° for ?.
B=6⋅(12⋅11⋅5.5 ⋅ tan60°)
Simplify.
B=181.5 ⋅ tan60° cm2
The volume of a prism.
V=Bh
Substitute 181.5 ⋅ tan60° for B and 8 for h.
V=(181.5 ⋅ tan60°)⋅8
Multiply 181.5 by 8.
V=1452 ⋅ tan60°
Use a calculator to approximate.
V≈2514.9 cm3
Therefore, the volume of the hexagonal prism is approximately 2514.9 cm3.
What is the equation of a line that passes through (4,-1) and is parallel to
y = 1/4x +7?
PLEASE ANSWER ASAP THIS IS FOR MY FINAL
Answer:
The equation of a line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept. Since the line given in the question is parallel to y = 1/4x + 7, we know that the line has a slope of m = 1/4.
To find the equation of the line that passes through (4,-1), we can use the point-slope form of a linear equation, which is y - y1 = m(x - x1).
Therefore, the equation of the line passing through (4,-1) and parallel to y = 1/4x + 7 is:
y - (-1) = 1/4(x - 4)
y + 1 = 1/4x + 1
This is the equation of a line passing through (4,-1) and parallel to y = 1/4x + 7.
What is the equation for the line?
Answer:
y=mx+b
so, y=1/4x+6
Step-by-step explanation:
plug in, then simplify the slope.
Maryland transportation authority decided to setup toll booths on either side of the Fort McHenry tunnel due to increased traffic. After studying the traffic patterns, MTA found that peak traffic occurs in the evenings on Friday and Saturday. On average, 4796 vehicles per hour pass through the tunnel each way during peak times. The vehicles need to go through the toll booths. MTA would like to keep the average time spent at each toll booth to less than 2 minutes. How many lanes should MTA open if they do not want to have more than 10 vehicles waiting in line (on average)?
The average time spent at each toll booth to less than 2 minutes.The average number of vehicles that pass through the tunnel each way during peak times is 4796MTA would like to keep the number of vehicles waiting in line (on average) to less than 10.
To determine the number of toll lanes that should be opened, we must first determine how many vehicles can pass through a single toll lane in one hour.To find out how many vehicles pass through a single toll lane in one hour, we can use the formula below:Number of vehicles that can pass through a single toll lane in one hour = (Number of minutes in an hour) / (Average time spent at each toll booth)Let's first convert the number of minutes in an hour so that we can plug it into the formula:60 minutes/hourPlugging in the numbers:Number of vehicles that can pass through a single toll lane in one hour = 60/2= 30We can see that one toll lane can handle 30 vehicles per hour.
To find out how many toll lanes are needed to handle 4796 vehicles, we must divide the total number of vehicles by the number of vehicles that a single toll lane can handle:4796/30 = 160Since there can't be a fraction of a toll lane, we must round up to the nearest whole number. Therefore, we can conclude that MTA should open six toll lanes to ensure that no more than ten vehicles are waiting in line on average.
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A recipe for snack mix has a ratio of 2 cups nuts, 4 cups pretzels, and 3 cups raisins. How many cups of nuts are there for each cup of raisins?
Answer: 1 cups of nuts : 1 1/2 cups of raisins
Step-by-step explanation:
find the missing angle.
Answer:90 degree
Step-by-step explanation:
Answer:
x = 90°
Step-by-step explanation:
According to the Angle Sum Property of Triangles, the sum of the internal angles is 180°.
55° + x° + 35° = 180°x° + 90° = 180°x = 90°The polynomial has been factored completely. What are the zeros of the function?
x2-2x-48-(x+6)(x-8)
x=6 and x=8
x=-6 and x=8
x = 6 and x = -8
x = -6 and x = -8
The zeroes of the factored polynomial as required to be determined in the task content are: x = -6 and x = 8.
What are the zeroes of the factorised polynomial?It follows from the task content that the zeroes of the completely factorised polynomial are to be determined.
Since the given polynomial is; x² - 2x - 48 which has been factorised completely to; (x + 6) (x - 8).
Ultimately, the zeroes of the Polynomial are as follows;
x + 6 = 0; x = -6.
and
x - 8 = 0; x = 8.
Conclusively, the zeroes of the polynomial are; x = -6 and x = 8.
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!!!HELP ME WITH THIS QUESTION PLEASE!!!
Answer:
b
Step-by-step explanation:
i think i might be wrong
Which equation can be used to find the solution of (1/4)^y+1=64?
−y−1=3
y + 1 = 3
−y+1=3
y−1=3
Answer:
−y−1=3
Step-by-step explanation:
Which equation can be used to find the solution of (1/4)^y+1=64?
This can be solved by power of indices
(1/4)^(y+1)=64
(4^-1)^(y + 1)= 4^3
Note
(x^a)^b = x^ab
Hence:
4^(-1)(y + 1)= 4^3
4^-y - 1 = 4^3
Divide both sides by 4
−y−1=3
Hence, the equation that can be used to find the solution of (1/4)^y+1=64 is
−y−1=3
Answer:
-y-1=3
Step-by-step explanation:
took the test and got it correct
Karissa wants to measure the width of her book. which metric unit should she use
Karissa measures the width of her book using the metric unit Centimeter(cm).
In this question,
The metric system of measurement is the standard system based on decimal values. The metric system is a system of measurement that uses the meter, litre, and gram as base units of length (distance), capacity (volume), and weight (mass) respectively.
To measure smaller or larger quantities, we use units derived from the metric units. It has unit conversions based on the powers of 10. Millimeter (mm), Decimeter (dm), Centimeter (cm), Meter (m), and Kilometer (km) are used to measure how long or wide or tall an object is.
In units of measurement of length or width we use centimeter (cm) to measure. We can use this unit for measuring the length of a box, the width of a book etc.
Hence we can conclude that Karissa measures the width of her book using the metric unit Centimeter(cm).
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Evaluate the expression: H - 7 for H = 22
Answer:
15
Step-by-step explanation:
H - 7
When H = 22, replace H with 22 in the equation.
22 - 7 = 15
Answer:
15
Step-by-step explanation:
Since H=22, therefore when you plug in 22 for h in the equation, you get 22-7=15
Answer please :D.....
Answer
50/1 6/7
Step-by-step explanation: