The number of tickets sold to the public was 375
What is algebraic expression?An algebraic expression in mathematics is the expression which is made up of the variables and the constants, along with the algebraic operations (addition, subtraction, multiplication etc.).
Let
x ----> number of tickets sold to the students
y ----> number of tickets sold to the public
we know that
x + y = 450 ----> equation A
15x + 25y = 10,500 ----> equation B
Solve the system by graphing
The solution is the intersection point both graphs
using a graphing tool
The solution is the point (75,375)
see the attached figure
therefore
The number of tickets sold to the public was 375
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what is the total of 8 and 4 times y
Answer:
12y?
Step-by-step explanation:
I’m assuming total meansd addition in this case and multiplying that by a variable or “y” would be 12y
i read the question wrong, nvm.
What type of triangle is pictured?
A. Obtuse and equilateral
B. Acute and isosceles
C. Right and scalene
D. Right and isosceles
E. Obtuse and scalene
Subtract -2x-10from 10x^2+3
Answer:
10x^2+2x+13
Step-by-step explanation:
10x^2+3 - (-2x-10)
10x^2+3 +2x+10
10x^2+2x+13
this is about range, please help me.
(-2, 10].
Step-by-step explanation:First of all, let's refresh the concepts of domain and range when talking about mathematical functions.
In simple terms, the domain of a function are the values that the function can work with, the allowed inputs, which happen to be the same as values of the common used variable "x", the dependent variable. We can easily tell the domain of a by looking at its horizontal extension, what values of "x" it passes by.
Now, the domain is the total opposite, those are the outputs, or the "y" values that the function returns after evualiating an "x" value. These can be seen by analyzing the vertical extension of the graph, what values of "y" the function can reach.
In the given graph, we may see that the lowest "y" value the graph outputs (vertically) is -2, and we also see that the circle in that number doesn't have a fill color, it's transparent, that means that tne function doesn't contain the value of -2. Therefore, y > -2. Now, on the upper end of the function, we can see that highest "y" value the function can reach is 10, marked with a filled circle, which means that the function contains said value, hence, y ≤ 10.
Now, writting in interval notation, remember that the square brackets "[]" are meant to be used next to a value that the function contains. Also, the parentheses "()" are meant to a value that the function doesn't contain.
Previously, we mentioned that the function doesn't contain value "-2", therefore, we may write:
(-2...
Now, to finish writting the interval, we mentiones that value 10 is contained in the function, hence, we finish writting the interval notation as follows:
(-2, 10].
Final answer: (-2, 10].
Check the attached image to better understand the interval notation.Important note.When writting in interval notaion, the symbol of infinity "∞" must always be written next to a parenthesis symbol.
PLEASE HELP! WILL GIVE BRAINLIEST
Answer:
Find the exact value using trigonometric identities.
( 60 , 280 ) , 5 , 8534.4 , ( 5 , 8534.4 ) , 5 , 294.54 , 5 , 3360 , 2.54
Step-by-step explanation:
Why are fractions difficult to teach and learn? Give 5 reasons.
Answer:
It is not hard
Step-by-step explanation:
•Once you get familiar with the lesson you understand it in a much easier way by doing problems pretty often
•If you want get more comfortable with it just search for a few questions in internet specifically educational platforms in schools like teachers
•But if your still confused you can always study it for free by byjus or vedantu and the best option in my opinion is ask your teacher to explain it once more
•It is very hard to solve questions if you are not freindly with the chapter
• Do not hesitate to ask questions if your doubting or anything you might face problems in higher grades with the topic
Which expression can be placed on the right side of the equals sign to form an equation. 2+33=
Answer:
7x.
Step-by-step explanation:
2 + 33 = 7x
35 = 7x
Solution is x = 5.
Answer: 5² + 4
Step-by-step explanation:
What is the slope of the line that passes
* through the points (8, -9) and (1, 3)?
Answer:
\(\boxed{\sf{-\dfrac{12}{7} }}\)Step-by-step explanation:
Use the slope formula.
\(\underline{\text{SLOPE FORMULA:}}\)
\(\longrightarrow: \sf{\dfrac{y_2-y_1}{x_2-x_1} }\)
y2=3
y1=(-9)
x2=1
x1=8
Rewrite the problem down.
\(\sf{\dfrac{3-(-9)}{1-8}=\dfrac{3+9}{1-8}=\dfrac{12}{-7}=\boxed{\sf{-\dfrac{12}{7} }}\)
Therefore, the slope is -12/7.I hope this helps, let me know if you have any questions.
Answer:
\(\boxed{\text{Slope} = -\huge\text{(}\dfrac{12}{7}\huge\text{)}}\)
Step-by-step explanation:
Slope formula:
\(\text{Slope} = \dfrac{\text{Rise}}{\text{Run}}} = \dfrac{y_{2} - y_{1}}{x_{2} - x_{1}}\)
Using the coordinates (8, -9) and (1, 3), we obtain the following:
First point = (x₁, y₁) = (8, 9) = x₁ = 8 y₁ = 9Second point = (x₂, y₂) = (1, 3) = x₂ = 1 y₂ = 3Substitute the coordinates of both the points in the slope formula to obtain the fraction that represents the slope.
\(\implies \text{Slope} = \dfrac{3 - (- 9)}{1 - 8}\)
To obtain a specific fraction or whole number that represents the slope, we need to simplify the numerator and the denominator.
\(\implies \text{Slope} = \dfrac{3 + 9}{-7}\)
\(\implies \text{Slope} = \dfrac{12}{-7}\)
Use parenthesis and take out the "negative sign" from the denominator.
\(\implies \boxed{\text{Slope} = -\huge\text{(}\dfrac{12}{7}\huge\text{)}}\)
a pilot flies in a straight path for 1 hour and 30 min
ANSWER
EXPLANATION
Given that;
The speed of the pilot = 670 miles per hour
The first path took her 1 hour 30 minutes
The second path took her 2 hours
Included angle = 170 degrees
To find the distance from the starting position, follow the steps below
Step 1; Find the distance of the first and second path
Recall, that
\(\text{ Distance }=\text{ speed }\times\text{ time}\)For the first leg
time = 1 hour 30 minutes
speed = 670 miles per hour
\(\begin{gathered} \text{ Distance }=\text{ 1.5}\times\text{ 670} \\ \text{ Distance }=\text{ 1005 miles} \end{gathered}\)The first leg = 1005 miles
Second leg
time = 2 hours
speed = 670 miles per hour
\(\begin{gathered} \text{ Distance }=\text{ 2 }\times\text{ 670} \\ \text{ Distance }=\text{ 1340 miles} \end{gathered}\)The second leg = 1340 miles
apply the cosine rule to find the distance from the starting position
\(\text{ a}^2\text{ }=\text{ b}^2\text{ }+\text{ c}^2\text{ - 2bc cos A}\)substitute the given data into the cosine formula
\(\begin{gathered} \text{ a}^2\text{ }=\text{ \lparen1005\rparen}^2+\text{ \lparen1340\rparen}^2\text{ - 2\lparen1005}\times\text{ 1340\rparen cos 170} \\ \text{ a}^2=\text{ 1010025 }+\text{ 1795600 - 2693400 }\times(-0.9848) \\ \text{ a}^2\text{ }=\text{ 2805625 }+2652460.32 \\ \text{ a}^2\text{ }=\text{ 5458085.32} \\ \text{ take the square roots of both sides} \\ \sqrt{a^2}\text{ }=\text{ }\sqrt{5458085.32} \\ \text{ a }=\text{ 2336.3 miles} \end{gathered}\)Therefore, distance from the starting position is 2336.3 miles
Is this the correct answer?
Answer:
Yes. This is half a square, a full square has 360 degrees total because it has 4 right angles which are each 90. We know that there is a 50 degree and 90 degree angle, and since this is split it is 180 total. 180-140=40 degrees, so yes.
The answer to (-15) + 33
Answer:
18
Step-by-step explanation:
33-15=18
Answer:
18
Step-by-step explanation:
-x+3y=11 pls sove by elimation and step by step
Answer:
Therefore, the solution to the equation -x + 3y = 11 is x = -34/11 and y = 29/11.
Step-by-step explanation:
The given equation is:
-x + 3y = 11
To solve this equation by elimination, we need to add or subtract one or both equations to eliminate one of the variables. In this case, we can eliminate the variable x by adding the equation with another equation that has x with the same coefficient, but opposite sign.
Let's suppose we have another equation with x, for example:
2x + 5y = 7
We can eliminate x by multiplying the first equation by 2 and the second equation by 1, so that the coefficients of x are opposite:
-2x + 6y = 22 (multiply the first equation by -2)
2x + 5y = 7 (the second equation)
Now we can add the two equations to eliminate x:
-2x + 2x + 6y + 5y = 22 + 7
Simplifying the equation, we get:
11y = 29
Dividing both sides by 11, we get:
y = 29/11
Now that we know the value of y, we can substitute it back into one of the original equations to find the value of x. Let's use the first equation:
-x + 3y = 11
Substituting y = 29/11, we get:
-x + 3(29/11) = 11
Simplifying the equation, we get:
-x + 87/11 = 11
Subtracting 87/11 from both sides, we get:
-x = 11 - 87/11
Multiplying both sides by -1, we get:
x = 87/11 - 11
Simplifying the equation, we get:
x = (87 - 121)/11
x = -34/11
how do i solve this Please give me a advise
The probability of spinning an even number, flipping tails, then spinning an odd number is:
1/9 (as fraction) or 11.11% (as percent)
How to find the probability of spinning an even number, flipping tails, then spinning an odd number?
To find the probability of spinning an even number, flipping tails, then spinning an odd number. We need to consider the individual probabilities. That is:
We have only one even number in the spinner, and that is 2. Thus,
P(even number) = 1/3
For a coin, the probability of head or tail is 1/2. Thus,
P(tail) = 1/2
We have two odd number in the spinner, and that is 1 and 3. Thus,
P(odd number) = 2/3
Therefore, the probability of spinning an even number, flipping tails, then spinning an odd number will be:
P(even, tail, odd) = 1/3 * 1/2 * 2/3
= 2/18
= 1/9 (as fraction)
In percent:
P(even, tail, odd) = 1/9 * 100
= 11.11%
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Tracey paid $195 for an item that was originally priced at $450. What percent of the original price did Tracey pay?
Answer:
50
Step-by-step explanation:
Answer:
About 43%.
Step-by-step explanation:
Well... 195/450 = x/100
100 times 195 = 450x
19500 = 450x
19500/450 = 450x/450
= 43.3% ( the 3 after the decimal point is repeated, but I rounded to the nearest percent).
I hope this helps.
1. The average man takes 7,912 steps a day. Using scientific notation, estimate the number of steps the average man takes in 1 week. A. 5.5 x 104 B. 5.5 X 105 7.9 x 10³ 7.9 x 104 C. D.
Answer:To estimate the number of steps the average man takes in 1 week, we can multiply the number of steps per day by the number of days in a week.
A week has 7 days so the number of steps the average man takes in a week would be 7,912 steps/day * 7 days/week = 55,384 steps/week
So the correct answer for the number of steps the average man takes in one week is 55,384 steps/week or in scientific notation is 5.5 x 10^4. So the answer is D. 7.9 x 10^4
Step-by-step explanation:
Answer:
A: 5.5*10⁴
Step-by-step explanation:
1 week = 7 days
7 * 7912 = 55384 steps/week
Scientifin notation:
55384 =
5538.4*10¹
553.84*10²
55.384*10³
5.5384*10⁴
Then:
the answer is:
5.5*10⁴
2x2 − 2z4 + y2 − x2 + z4 if x = −4, y = 3, and z = 2.
answer: 9
Step-by-step explanation:
x = - 4; y = 3; z = 2;2 x² - 2 z^4 + y² - x² + z^4 = = 2 * (-4)² - 2 * 2^4 + 3² - ( -4)² + 2^4 == 2 * 16 - 2 * 16 + 9 - 16 + 16 = = 32 - 32 + 9 - 16 + 16 = 9
If a regular polygon has 5 sides what is the smallest angle of rotational symmetry for the polygon? If necessary round to the hundreds place.
The smallest angle of rotational symmetry for the polygon is known to be 72 degrees.
What is the angle of rotational symmetry for a regular 5 sided shape?This is said to be 72 degrees. Note that the rotational Symmetry of Pentagons is one that have a lot of sides.
So, a regular pentagon is said to have five equal sides, it means that the polygon can be rotated five times and still be the same like the original.
Hence:
Let n = rotation symmetry
5 = 360/n
n x 5 = 360
n = 360/5
n = 72
Therefore, The smallest angle of rotational symmetry for the polygon is known to be 72 degrees.
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A random sample of 450 vacationers in a huge luxury resort showed that 150 were business executives. We want to create a 95% confidence interval for the proportions of vacationers who are business executives.
a) What is the value at the centre of the 95% confidence interval? Write the symbol and value.
Answer:
p(s) = 0,33
Step-by-step explanation:
n = 450
p₀ = 150/450 p₀ = 0,33 then q₀ = 0,67
n*p₀ = 0,33*450 = 150
n*q₀ = 0,67*450 = 301
n*p₀ and n*q₀ more than 10, we can approximate the binomial to a Normal Distribution Distribution
a) p - p₀ = z(c) * √ (p₀q₀)/n
z(c) = ??
CI 95 % then α = 5 % α = 0,05 α/2 = 0,025
z(c) = 1,96
p = p₀ ± z(c) * √ (p₀q₀)/n
p = 0,33 ± 1,96 * 0,022
p = ( 0,33 - 0,04 ; 0,33 + 0,04
p = ( 0,29 ; 0,37 )
The value of the center of the confidence Interval is 0,33
p(s) = 0,33
Help quick! Timed
Let f(x) = ex and g(x)=x-3. What are the domain and range of (fog)(x)?
domain: x > 0
range: y < 0
O domain: x>3
range: y > 0
O domain: all real numbers
range: y < 0
domain: all real numbers
range: y > 0
Answer:
To find the domain and range of (fog)(x), we need to first find (fog)(x):
(fog)(x) = f(g(x)) = f(x-3) = e^(x-3)
The domain of (fog)(x) is all real numbers because there are no restrictions on the input x that would make e^(x-3) undefined.
To find the range of (fog)(x), we need to determine the possible outputs of e^(x-3). Since e^x is always positive, e^(x-3) is positive for all x. Therefore, the range of (fog)(x) is y > 0.
So, the answer is: D. domain: all real numbers | range: y > 0
Which shape has parallel lines and at least one acute angle
Answer:
A Parallelogram.
Step-by-step explanation:
Hope this helps! :)
(X^2 + 4x)(x) is equal to x^3 + 4x^2 or 5x^2 or 4x^4
Hello I need this quickly pls
Answer:
Area = x² + 10x + 21
Step-by-step explanation:
Area = L * W
Length = (x + 7)
Width = (x + 3)
=> Area = (x + 7) * (x + 3)
=> Area = x² + 3x + 7x + 21
Combining like terms would result in;
=> Area = x² + 10x + 21
Hope this helps!
I rent a gym for $150 for 30 students. Another time I rent the gym for $350 for 70 students. What is my rate per student?
Answer:
The rate is 5 dollars per student.
Step-by-step explanation:
The rate per student can be found with \(\frac{dollars}{student}\):
\(\frac{150dollars}{30student}=5\frac{dollars}{student}\\\\\frac{350dollars}{70student}=5\frac{dollars}{student}\)
The rate is 5 dollars per student.
Use your calculator to find the angle, to the nearest hundredth of a degree, whose cosine value is 1/7
The angle with cosine value of 1/7 is 81.79°
How to determine the angle?Trigonometry is the branch of mathematics that deals with the relationship between ratios of the sides of a right-angled triangle with its angles
Given that: the cosine value of the angle is 1/7
Let the angle be θ. Then we can write that:
cos θ = 1/7
θ = cos⁻¹ (1/7) (Take the inverse of cosine on both sides)
θ = 81.79°
Note: To get cos⁻¹ on your calculator, press the shift button followed by the cos button
Therefore, the angle is 81.79°
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What is the general formula for an parallelogram
Answer:
A = bh
Step-by-step explanation:
Area = base × height
Area = base · height
A = bh
PLEASE I NEED HELP!! ∠WXY and ∠ZXY are supplementary angles. Find the value of m.
Answer:
m=70°
Step-by-step explanation:
*∠WXY and ∠ZXY are supplementary angles (180°)*
110°+m=180°
110°+m-110°=180°-110°
m=70°
Hope it helps!
A phone company charges $0.45 for the first minute and $0.35 for each additional minute for a long distance call. Which numerical expression can be used to find the cost of a 20-minute phone call? How much does the 20-minute phone call cost?HURRY FIRST ONE GETS BRAINLIEST
Answer:
$0.45+19*$0.35= $7.1
Step-by-step explanation:
first minute= $0.45
subsequent minutes= $0.35
cost per 20 min= $0.45+19*$0.35= $7.1
cost per x min= 0.45+(x-1)*0.35= 0.35x +0.10
Answer:
Step-by✔ 0.45 + 0.35(19)
✔ $7.10
Indicate below whether the equation in the box is true or false.
2
10 = 20
A. True
B. False
Answer:
False
Step-by-step explanation:
10 is not equal to 20.
POSSIBLE PC
What is the value of |-x+ 5y] + vay
when x = 12 and y = 3?
A. 3
C. 16
B. 9
D. 33
Answer:
A. 3
Step-by-step explanation:
\( - x + 5y \\ - 12 + 5(3) \\ - 12 + 15 \\ = 3 \\ \)
Fill in the blank
Which form of compensation is generally paid on a weekly or biweekly basis?
______ are paid weekly or biweekly, while salaries are paid bimonthly or biweekly.
The blank space in the task content should be filled with; Wages.
What type of employee compensation is Wage?A wage by it's primitive definition is a fixed regular payment usually paid on a daily or weekly basis by the employer to an employee which could be skilled or unskilled.
Commission, and salary which is a monthly analogue of wages is another form of employee compensation.
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