The total number of people in the dining room is 24.
what is number ?
A number is a mathematical object used to quantify or count things. It is an abstract concept used to represent a quantity, value, or measurement. Numbers can be expressed as numerals, such as 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9, or as words, such as "one," "two," "three," etc.
what is measurement ?
Measurement is the process of determining the size, amount, or degree of a quantity or attribute, usually by comparing it to a standard or reference.
In the given question,
Let's use the variable "p" to represent the total number of people in the dining room.
According to the problem, one-fourth of the people in the dining room are men. Therefore, we can set up the following equation:
1/4 * p = 6
To solve for p, we can start by multiplying both sides of the equation by4:
p = 4 * 6
p = 24
Therefore, the total number of people in the dining room is 24.
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Ahmed bought 5 equally priced markers for $3.25.
How much will 12 of these markers cost?
$1.35
$6.68
$7.80
$8.46
Answer:
$7.80
Step-by-step explanation:
Find the unit price by dividing 3.25 by 5.
3.25 ÷ 5 = 0.65
Now that you have the unit price, multiply it by 12 to find the total price of the 12 markers.
0.65 × 12 = 7.80
Thus, 12 of the same markers that Ahmed bought will cost $7.80.
The cost of 12 markers is given by the equation A = $ 7.80
What is an Equation?Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
Let the number of markers be n = 5
The cost of 5 markers = $ 3.25
So , the cost of 1 marker = cost of 5 markers / 5
On simplifying the equation , we get
The cost of 1 marker = 3.25 / 5
The cost of 1 marker = $ 0.65
Now , the cost of 12 markers = 12 x cost of 1 marker
Substituting the values in the equation , we get
The cost of 12 markers A = 12 x $ 0.65
The cost of 12 markers A = $ 7.80
Hence , the equation is A = $ 7.80 , where A is the total cost of markers
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-7g+3g²-31-4g-9g²
Combine like terms to simplify
Answer:
6g^2−11g−31
Step-by-step explanation:
If this helps may i plz have brainliest :)
Which constant term should be used to complete the square
1) We can complete the square, by picking the coefficient b and dividing by 2. In this case:
\(\begin{gathered} b=5 \\ \frac{5}{2} \end{gathered}\)2) So, now we can proceed with that reminding ourselves that any number added to the left side must be added to the right side so that the equation remains true.
Let's pick that 5/2 and square it:
\((\frac{5}{2})^2=\frac{25}{4}\)So now, we can write out:
\(\begin{gathered} x^2-5x+\frac{25}{4}=7+\frac{25}{4} \\ (x-\frac{5}{2})^2=\frac{53}{4} \end{gathered}\)Thus, the number to be added is 25/4
Which system is equivalent to ...
Answer:
C
Step-by-step explanation:
x = y + 2
y = -2(y+2)²
y = -2 (y² + 4 + 4y)
y = -2y² - 8y - 8
x = y + 2
find the y-intercept and slope of the functions graph, and find the equation for the function
Answer:
ano po yan math po ba yan?
send help asap i hate school smh please i will give brainlist
Answer:
See below.
Step-by-step explanation:
The question tells us that 2.54 cm is equivalent to 1 inch. The next part wants to know what 5.08 cm is in inches. We can just divide 5.08 by 2.54 to figure that out.
5.08/2.54 = 2
This means that 5.08 cm is 2 inches.
The next one wants to know how many centimeters 10 inches is. We can 2.54 and multiply it by 10.
2.54 · 10 = 25.4
This means that 25.4 cm is 10 inches.
Find the coordinates for the midpoint of the segment with the endpoints given.
(5, 6) and (8, 2)
. There are 10 beads in a bag. 5 beads are black; 3 beads are white and the rest are red. A bead is picked at random. Find the probability that it will be a) white b) black or red, c) not white d) not blue.
Part A
P(white) = (3 white)/(10 total) = 3/10
Answer: 3/10==============================================
Part B
10 total, 3 are white
10-3 = 7 are not white so they are either black or red
P(black or red) = 7/10
Answer: 7/10==============================================
Part C
Earlier in part B we calculated 7 beads that weren't white
This means P(not white) = P(black or red) = 7/10
They are the same probability just phrased slightly different ways.
Answer: 7/10==============================================
Part D
There aren't any blue beads (unless there's a typo somewhere). So the probability of picking not blue is 100% or we represent this as the value 1.
Answer: 10 is an angle in a right-angled triangle. tan 0 = 23/52 What is the value of 0? Give your answer in degrees to 1 d.p.
The value of the angle θ is approximately 24.2 degrees to 1 decimal place.
In a right-angled triangle, the tangent of an angle is defined as the ratio of the length of the side opposite the angle to the length of the side adjacent to the angle. Given that tan θ = 23/52, we can find the value of the angle θ.
To find the value of θ, we can use the inverse tangent or arctan function. Taking the inverse tangent of both sides of the equation, we have:
θ = arctan(23/52)
Using a calculator or trigonometric tables, we can evaluate the inverse tangent of 23/52. The result is approximately 24.2 degrees.
Note that in the context of a right-angled triangle, the tangent function is defined for acute angles (less than 90 degrees). Since 0 degrees is the smallest possible angle, it is considered an acute angle in this case.
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If two fractions are between 0 and 1, can their product be more than 1? please explain. Thank You.
Answer:
If they can be the same fraction, like 2/3 + 2/3, then yes. If they can have different denominators, like 4/5 + 1/2, then yes. Any other way is no.
Step-by-step explanation:
The same fraction (2/3 + 2/3) will equal 4/3, which is more than 1.
Different denominators (4/5 + 1/2) will equal 13/10, which is more than 1.
Nd if I'm wrong, my bad. I really tried.
Name the property
(3+8)+10=3+(8+10)
Inverse Property of Addition
Inverse Property of Multiplication
Identity Property of Addition
Identity Property of Multiplication
Commutative Property of Addition
Commutative Property of Multiplication
Associative Property of Addition
Associative Property of Multiplication
Distributive Property
Addition Property of Equality
Subtraction Property of Equality
Multiplication Property of Equality
Division Property of Equality
Answer:
associative property of addition !!
Step-by-step explanation:
this is because you are ASSOCIATING the two numbers together
think of it like this
in a trio friendship there could be two friends that are closer
the 8 and the 10 in the second half of the equation are closer
BUT in the first half the 3 and the 8 are closer too
hope that made sense lol
A team of researchers wants to determine whether pet owners are generally more satisfied with their lives than non-pet owners. To test their theory, the researchers randomly select 500 pet owners and 500 non-pet owners from several major metropolitan areas in the country. The researchers then interview the individuals, asking them a series of questions. Each response is assessed with a point value that is later translated to a satisfaction indicator. Of the pet owners surveyed, 380 of the 500 were found to be satisfied with their lives, while 336 of the 500 non-pet owners were found to be satisfied.
Would this study be considered an experiment or an observational study?
Answer:
observational study
Step-by-step explanation:
Can the following quadrilateral be proven to be a parallelogram based on the given information? Explain.
(picture shown below)
A.) No. It cannot be proven because at least two of the adjacent angles are not congruent to each other
B.) Yes. It can be proven because both pairs of opposite sides are congruent.
C.) No. It cannot be proven because it does not have an angle that is supplementary to both of its consecutive angles.
D.) Yes. It can be proven because both pairs of opposite angles are congruent.
Answer:
Step-by-step explanation:
The answer is, no!
Step-by-step explanation:
The reason to that answer is that some other shapes are also, having the same properties as shown. An example for that property would also mean a rectangle and not always a parallelogram.
So, here is the given information on what we need to classify a shape as a parallelogram:-
1) Parallel Sides
2)Opposite Sides are equal.
3) Adjacent sides are not equal.
4) Opposite angles are equal.
5)Adjacent angles are not equal.
Based on this, we can classify a shape as a parallelogram.
Hope, this answer helps!
Male Color Blindness
Approximately 9% of men have a type of color blindness that prevents them from
distinguishing between red and green. If 3 men are selected at random, find the
probability that all of them will have this type of red-green color blindness.
Answer:
About 0,3? Could go higher but the middle answer ( highest probability) is correct to me.
Step-by-step explanation:
If the slope is 3 what does it represent using this table
Answer:
The table represents a linear function.
The graph of linear function y = 3x is attached below.
Step-by-step explanation:
Given the table
Number of Hours 1 3 5
Number of Tents 3 9 15
Given that the slope is 3.
Finding the slope between (1, 3) and (3, 9)
Slope = (y₂-y₁) / (x₂-x₁)
= [9-3] / [3-1]
= 6 / 2
= 3
Finding the slope between (3, 9) and (5, 15)
Slope = (y₂-y₁) / (x₂-x₁)
= [15-9] / [5-3]
= 6 / 2
= 3
As the value of slope remains constant i.e. slope = m = 3.
Using the point-slope form of the line equation
\(y-y_1=m\left(x-x_1\right)\)
where m is the slope of the line and (x₁, y₁) is the point
substituting the values m = 3 and the point (1, 3)
\(y - 3 = 3 (x-1)\)
\(y-3 = 3x-3\)
\(y = 3x-3+3\)
\(y = 3x\)
Comparing with the slope-intercept form of a linear function of line
y = mx+b where m is the slope and b is the y-intercept
slope = 3 and y-intercept b = 0
Therefore, the table represents a linear function.
The graph of linear function y = 3x is attached below.
11) There are 32 students in a closs. Nine of those students are
women. What percent ere mena (round to the nearest tenth)
plz is this correct
?
Answer:
It's 3 and 177.
Step-by-step explanation:
Let the angle be x°. Then its supplementary is 59x°.
We know,
x+ 59x=180
or, x = 3°
and another angle, 59x°= 177°
The National Highway Traffic Safety Administration reported the percentage of traffic accidents occurring each day of the week. Assume that a sample of 420 accidents provided the following data.
Sunday 66
Monday 50
Tuesday 53
Wednesday 47
Thursday 55
Friday 69
Saturday 80
A) Conduct a hypothesis test to determine if the proportion of traffic accidents is the same for each day of the week. What is the P-Value? Use a 0.05 level of significance, what is your conclusion?
B) Compute the percentage of traffic accidents occuring on each day of the week. What day has the highest percentage of traffic accidents? Does this seem reasonable? Explain.
Answer:
(A) There is enough evidence to suggest that the proportion of traffic accidents is not same for each day of the week.
(B) Saturday has the highest percentage of traffic accidents.
Step-by-step explanation:
(A)
The Chi-square goodness of fit test would be used to determine if the proportion of traffic accidents is the same for each day of the week.
The hypothesis for the test can be defined as follows:
H₀: The proportion of traffic accidents is the same for each day of the week.
Hₐ: The proportion of traffic accidents is not same for each day of the week.
Assume that the significance level of the test is, α = 0.05.
The Chi-square test statistic is given by:
\(\chi^{2}=\sum\limits^{n}_{i=1}\frac{(O_{i}-E_{i})^{2}}{E_{i}}\)
Compute the values in Excel.
The expected frequency for all the days is 60.
The Chi-square test statistic value is, 14.333.
Compute the p-value using the Excel function "=CHISQ.DIST.RT(14.33,6)".
p-value = 0.0262
Decision rule:
If the p-value of the test is less than the significance level then the null hypothesis will be rejected.
The p-value is less than 0.05.
The null hypothesis will be rejected.
Conclusion:
There is enough evidence to suggest that the proportion of traffic accidents is not same for each day of the week.
(B)
Compute the percentage of traffic accidents occurring on each day of the week as follows:
\(\text{Sunday}=\frac{66}{420}\times 100\approx 16\%\\\\\text{Monday}=\frac{50}{420}\times 100\approx 12\%\\\\\text{Tuesday}=\frac{53}{420}\times 100\approx 13\%\\\\\text{Wednesday}=\frac{47}{420}\times 100\approx 11\%\\\\\text{Thursday}=\frac{55}{420}\times 100\approx 13\%\\\\\text{Friday}=\frac{69}{420}\times 100\approx 16\%\\\\\text{Saturday}=\frac{80}{420}\times 100\approx 19\%\)
Saturday has the highest percentage of traffic accidents.
Find the area and the circumference of a circle with radius 6 cm.
Write your answers in terms of it, and be sure to include the correct units in your answers.
Step-by-step explanation:
radius=6cm.
π=22 over 7
circumference=2πr
circumference=2×22 over7×6
circumference=51.04cm
Suppose a, b, and c are all negative numbers. How do you find the distance between the points (a,b) and (a,c)?
What is the value of m?
42.78/m=93
Answer:
m=0.46
Step-by-step explanation:
Answer:
m=42.78÷93
m=0.46
Step-by-step explanation:
please mark me as brainlest
M is a directly proportional to r cubed when r=4 M=160
1) work out the value of M when r=2
2) work out the value of r when M=540
Answer:
1) When r = 2, M = 20.
2) When M = 540, r = 6.
Step-by-step explanation:
M is a directly proportional to r cubed
This means that the equation for M has the following format:
\(M = ar^3\)
In which a is a multiplier.
When r=4 M=160.
We use this to find a. So
\(M = ar^3\)
\(160 = a(4^3)\)
\(64a = 160\)
\(a = \frac{160}{64}\)
\(a = 2.5\)
So
\(M = 2.5r^3\)
1) work out the value of M when r=2
\(M = 2.5*2^3 = 2.5*8 = 20\)
When r = 2, M = 20.
2) work out the value of r when M=540
\(M = 2.5r^3\)
\(540 = 2.5r^3\)
\(r^3 = \frac{540}{2.5}\)
\(r^3 = 216\)
\(r = \sqrt[3]{216}\)
\(r = 6\)
When M = 540, r = 6.
consider the set of points that are inside or within one unit of a rectangular parallelepiped (box) that measures 3 by 4 by 5 units. given that the volume of this set is $\displaystyle {{m n\pi}\over p}$, where $m$, $n$, and $p$ are positive integers, and $n$ and $p$ are relatively prime, find $m n p$.
The solution of m+n+p = 462+40+3 = 505.
The set is divided into several parts: the large 3x4x5 parallelepiped, 6 external parallelepipeds that share a face with the large parallelepiped and have a height of 1, 1/8 spheres (one at each vertex of the large parallelepiped), and 1/4 cylinders connecting each adjacent pair of spheres.
The parallelepiped has a volume of $3 times 4 times 5 = 60 cubic units.
The external parallelepipeds have a volume of $2(3 times 4 times 1)+2(3 times 5 times 1)+2(4 times 5 times 1)=94$.
Each of the 1/8 spheres has a radius of 1. Their combined volume is \(\frac{4}{3} \pi\).
There are 12 of the 1/4 cylinders, allowing for the formation of 3 complete cylinders. Their volumes are 3\(\pi\), 4\(\pi\), and 5\(\pi\), totaling 12\(\pi\).
The total volume of these parts is 60+94+ \(\frac{4}{3} \pi\) +12\(\pi\) = \(\frac{462 + 40\pi }{3}\). Thus, the solution is m+n+p = 462+40+3 = 505.
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refer to the graphs shown, which depict a perfectly competitive market and firm. if market demand is d0, the:
Firm shown in the graph will produce q0, but all the firms in the market will produce a total of Q0.
What is competitive market?A perfect market, sometimes known as an atomistic market, is described in economics by numerous idealizing requirements, together known as perfect competition, or atomistic competition. A competitive market is one in which no one customer or producer has sway over the market. Its reaction to supply and demand varies with the supply curve, which represents the quantity of a commodity. Perfect competition, monopolistic competition, oligopoly, and monopoly are the four types of economic market systems.
Here,
The business on the graph will create q0, but the market as a whole will yield Q0.
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The expression 3s + s + 3 represents how much Alex and his family will spend to go to the movies. Which statement explains how this expression can be simplified?
Answer:
Step-by-step explanation:
The expression 3s + s + 3 represents the total amount Alex and his family will spend to go to the movies. To simplify this expression, we can combine like terms.
The terms 3s and s are like terms because they both have the variable "s" raised to the power of 1. To combine them, we add their coefficients:
3s + s = (3 + 1)s = 4s
Therefore, the simplified expression is 4s + 3, which represents the total amount Alex and his family will spend to go to the movies.
Solve the given equation by completing the square.
Fill in the values of a, b, and e to complete the solutions.
The solution in this case is x = (4 + sqrt(102+4c))/2 - 4√c, which can be expressed in the form of X = a - b√c.
How to solve quadratic equation?
To solve the equation x²+8x-38=0, we can use the quadratic formula:
x = (-b ± sqrt(b²-4ac)) / 2a
Here, a=1, b=8, and c=-38. Substituting these values into the formula gives:
x = (-8 ± sqrt(8²-4(1)(-38))) / 2(1)
x = (-8 ± sqrt(324)) / 2
x = (-8 ± 18) / 2
So x is either -13 or 5.
To find the values of x in the form of X = a + b√c and X = a - b√c, we can use the following steps:
For X=a+b√c:
Let's assume that x = a + b√c, where a, b, and c are constants to be determined.
Substituting this into the original equation x²+8x-38=0, we get:
(a + b√c)² + 8(a + b√c) - 38 = 0
Expanding the square and simplifying, we get:
(a² + 2ab√c + b²c) + 8a + 8b√c - 38 = 0
Separating the real and imaginary parts, we get:
(a² + b²c + 8a - 38) + (2ab√c + 8b)√c = 0
Since the real and imaginary parts of the equation must both be zero, we can set them each equal to zero and solve for a, b, and c.
First, setting the real part equal to zero gives:
a² + b²c + 8a - 38 = 0
This is a quadratic equation in a, so we can use the quadratic formula:
a = (-8 ± sqrt(8²-4(bc-38))) / 2
Simplifying this gives:
a = -4 ± sqrt(4+b(b-10))
Now, setting the imaginary part equal to zero gives:
2ab + 8b = 0
Solving for b, we get:
b = 0 or b = -4
If b = 0, then a² + b²c + 8a - 38 = a² + 8a - 38 = 0, which has roots a = -5 and a = 3. Therefore, the solution in this case is x = -5 or x = 3, which cannot be expressed in the form of X = a + b√c.
If b = -4, then a² + b²c + 8a - 38 = a² + 16c + 8a - 38 = 0. Plugging this into the quadratic formula for a, we get:
a = -4 ± sqrt(102-4c)/2
Therefore, the solution in this case is x = (-4 + sqrt(102-4c))/2 - 4√c, which can be expressed in the form of X = a + b√c.
For X=a-b√c:
Using the same logic, we can assume that x = a - b√c, where a, b, and c are constants to be determined.
Substituting this into the original equation x²+8x-38=0, we get:
(a - b√c)² + 8(a - b√c) - 38 = 0
Expanding the square and simplifying, we get:
(a² + b²c - 8a - 38) + (-2ab√c - 8b)√c = 0
Since the real and imaginary parts of the equation must both be zero, we can set them each equal to zero and solve for a, b, and c.
Setting the real part equal to zero gives:
a² + b²c - 8a - 38 = 0
This is a quadratic equation in a, so we can use the quadratic formula:
a = (8 ± sqrt(8²+4(bc+38))) / 2
Simplifying this gives:
a = 4 ± sqrt(4+b(b+10))
Setting the imaginary part equal to zero gives:
-2ab - 8b = 0
Solving for b, we get:
b = 0 or b = -4
If b = 0, then a² + b²c - 8a - 38 = a² - 8a - 38 = 0, which has roots a = -3 and a = 11. Therefore, the solution in this case is x = -3 or x = 11, which cannot be expressed in the form of X = a - b√c.
If b = -4, then a² + b²c - 8a - 38 = a² + 16c - 8a - 38 = 0. Plugging this into the quadratic formula for a, we get:
a = 4 ± sqrt(102+4c)/2
Therefore, the solution in this case is x = (4 + sqrt(102+4c))/2 - 4√c, which can be expressed in the form of X = a - b√c.
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A golf ball rolls at a speed of 8 m/s for 12 seconds. Mandy hits the golf ball and it rolls
for 16 seconds at a speed of 12 m/s. What is the total distance travelled by the golf ball?
Using the given information, the total distance travelled by the golf ball is 288 m
Calculating the total distance travelled by the golf ballFrom the question, we are to calculate the total distance travelled by the golf ball
The distance travelled by the golf ball can be calculated by using the formula,
Distance = Speed × Time
From the given information,
The golf ball rolls at a speed of 8 m/s for 12 seconds
Thus,
The distance travelled at this time is
Distance = 8 m/s × 12 s
Distance = 96 m
Also,
Mandy hits the golf ball and it rolls for 16 seconds at a speed of 12 m/s
The distance travelled at this time is
Distance = 12 m/s × 16 s
Distance = 192 m
The total distance travelled by the golf ball is 96 m + 192 m
=
Hence, the total distance travelled by the golf ball is 288 m
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HELP ASP show your work!!
The minimum number of friends for which Jump it Up is 7
A two-variable linear equation can be thought of as a linear relationship between x and y, or two variables whose values rely on each other (often y and x) (usually x).
Sky high pricing:
$50 for <=10 people and $5 per person after that
Jump it Up pricing:
Set up charges = $70
Per person charges = $2
Let p be the number of people
Formulating the equation we get:
50 + 5p = 70 + 2p
3p = 20
p = 6.66
or p =7
So, Jump it up will be less expensive for 7 friends
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What is the value of the expression =2 ?
0
2
3.06 – Homework (due Thurs. 11/19) Part I: Write the domain and range of the following relations 1. Domain: City Range: n er D 10 ter 2. Domain: 1
the domain of the given function is
\(doma\text{ in = \lbrack-2,}\infty\rbrack\)the range of the function is,
\(\text{range}=\lbrack-1,\infty\rbrack\)