Answer:
1/2
Step-by-step explanation:
9 x 3 x 1/2 = 27 x 1/2 = 27/2 = 13 1/2
13 1/2 - 13 = 1/2
1/2 cups of ketchup are remaining.
An animal rescue group recorded the number of adoptions that occurred each week for three weeks:
There were x adoptions during the first week.
There were 10 more adoptions during the second week than during the first week.
There were twice as many adoptions during the third week as during the first week.
There were a total of at least 50 adoptions from the animal rescue group during the three weeks.
Write an inequality that represents all possible values of x, the number of adoptions from the animal rescue group during the first week.
Answer:
Step-by-step explanation:
An inequality that represents all possible values of x is; x ≤ 10
How to solve Inequality word problems?
We are given that there were x number of adoptions during the first week.
We are told that there were 10 more adoptions during the second week than during the first week. Thus;
number of adoptions in second week = 10 + x adoptions
There were twice as many adoptions during the third week as during the first week. Thus;
Number of adoptions in third week = 2x adoptions
There were a total of 50 adoptions from the animal rescue group during the three weeks. Thus, we can say that;
x + 10 + x + 2x ≤ 50
4x ≤ 50 - 10
4x ≤ 40
x ≤ 10
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A wall is being built with 16,351 stones the buliders have placed 8,361 stones and have 7,944 stones left Do they have enough stones how many more stones do they need?
1. What quantities are given in the problem and what do they mean?
2.Show how to find the number of stones the builders have in all then write and solve an equation do they have enough?
3.Show how to find the difference of how many more stones the builders need then write and solve an equation
They do not have enough stones and the quantity that they need is of 46 stones.
How to verify if they have enough stones?The quantities in this problem are given as follows:
16351: total number of stones in the wall.8361: number of stones that already have been placed in the wall.x number of stones that still need to placed into the wall.Then the equation to obtain the solution for x is given as follows:
x + 8361 = 16351.
x = 16351 - 8361
x = 7990 stones remaining.
The amount of stones that they have is given by:
7944.
Which is less than 7990 stones, hence the do not have enough stones and the quantity that they need is given by the subtraction of 7990 and 7944 as follows:
7990 - 7944 = 46 stones.
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HELP ME PLEASE! IM SO CONFUSED
Answer:
299,792 km599,585 km899,377 km1,199,170 km1,498,962 kmStep-by-step explanation:
You want to find the distance traveled by light in km for periods of 1–5 seconds at a speed of 299,792,458 m/s.
UnitsThe speed is given in meters per second, and the table values are wanted in kilometers. There are 1000 meters in 1 km, so it can be convenient to convert the speed to km/s before doing other calculations.
(299,792,458 m/s) / (1000 m/km) = 299,792.458 km/s
DistanceThe distance is found by multiplying the speed by time:
d = 299,792.458t
It is convenient to let a calculator do the multiplication (and rounding). The attachment shows the result of using t = {1, 2, 3, 4, 5}.
The distances are, respectively, {299792, 599585, 899377, 1199170, 1498962} km.
Find the sum of (8 + 2 − 4) and (3 − 5).
Answer:
4
Step-by-step explanation:
(8+2-4)+(3-5)
(10-4)+(-2)
6-2
4
Hopes this helps please mark brainliest
an open box is to be made from a two-foot by three-foot rectangular piece of metal by cutting equal squares from the corners and turning up the sides. find the volume of the largest box that can be made in this manner. round your final answer to the nearest hundredth.
The volume for the largest box will be 1.056 foot³. This can find out by application of differentiation.
What is AOD?
AOD is nothing but application of differentiation. It implies scopes where we can use differentiation to make our calculations easy.
Here, given
Length and breadth = 2,3 foot
Let us consider length of side of square = x
So, after cutting squares left sides of rectangular sheet = 2-2x , 3-2x
So, volume = (2-2x)*(3-2x)*x
v = 4x³ - 10x² + 6x
To find largest volume , [tex]\frac{dv}{dx}[/tex] = 0
[tex]\frac{dv}{dx}[/tex] = 12x² - 20x + 6
12x² - 20x + 6 = 0
x = 0.4 , 1.3
But, for 1.3 volume will be negative i.e. not possible.
So, volume = 2.2*1.2*0.4
= 1.056 foot³
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Determine the next 4 terms in the sequence. Put commas in between your numbers. If you get marked wrong, simply check to see if your numbers were correct. -0.02 ,0.01, 0.04, 0.07, 0.10, ...
Answer:
0.13, 0.16, 0.19, 0.22
Step-by-step explanation:
You are adding 0.03 each time
Answer:
0.13, 0.16, 0.19, 0.22
Step-by-step explanation:
Add 0.03 to each.
Triangle abc is defined by the points a(2,9), b(8,4), and c(-3,-2). Complete the following equation for a line passing through point c and perpendicular ab. Y = x +.
When triangle ABC is defined by the coordinates a(2,9), b(8,4), and c, the equation for the line is 5y=6x+8 (-3,-2).
What is equation of line?The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign. A mathematical phrase with two equal sides and an equal sign is called an equation. The point-slope form, standard form, and slope-intercept form are the three main types of linear equations. Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" symbol and terms on both sides must always be present when writing an equation. Equal treatment should be given to each side.
Here,
A=(2,9)
B=(8,4)
C=(-3,-2)
The slope of line AB,
m=(y2-y1)/(x2-x1)
=(4-9)/(8-2)
=-5/6
Slope of line perpendicular to AB,
m1=-1/m
=-1/(-5/6)
=6/5
This line pass through (-3,-2).
y=mx+c
-2=6/5*(-3)+c
c=-2+18/5
c=8/5
The equation of line,
y=6/5x+8/5
5y=6x+8
The equation of line is 5y=6x+8 when triangle ABC is defined by the points a(2,9), b(8,4), and c(-3,-2).
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A vehicle uses 1\frac{1}{8} gallons of gasoline to travel 13\frac{1}{2} miles. Create a rate to represent the miles the vehicle can travel per gallon of gasoline.
The vehicle can travel 12 miles per gallon of gasoline.
What is the Mixed fraction ?
A mixed fraction is one that is represented by both its remainder and quotient. Consequently, a mixed fraction is created by combining a whole number and a proper fraction.
What is the Rate ?
A rate is the comparison of two comparable amounts expressed in different units. If the ratio's denominator is written as a single unit of one of these quantities, and if it is assumed that this quantity can be modified systematically (i.e., is an independent variable), then the numerator of the ratio indicates the comparable rate of change in the other (dependent) variable.
The vehicle travels 13\frac{1}{2} by using 1\frac{1}{8} gallons of gasoline.
since the units are in mixed fraction, we can simplify it to simple fraction,
distance travelled= 13\frac{1}{2} = [(13 × 2) + 1] / 2 = 27/2 miles.
gasoline used= 1\frac{1}{8} = [(1×8)+1] /8 = 9/8 gallons.
∴ Miles per gallon of gasoline = distance travelled ÷ gasoline used
= 27/2 miles ÷ 9/8 gallons
= 12 miles per gallon of gasoline.
Hence, The rate of miles per gallon of gasoline is 12 miles/gallon of gasoline.
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chapter 17 review questions how does a b-tree differ from a b -tree? why is a b -tree usually preferred as an access structure to a data file?
The difference in b-tree and b +tree, b -tree is a self balancing tree data structure that maintains sorted data and b +tree is a modified version of b -tree.
b -tree is used to sort the data with various pieces facilities such as insertion ,deletion and search etc whereas b +tree is a modified version of b -tree providing all the functions smoothly and quickly .
In b -tree, both internal nodes and leaf nodes are used to store records and keys whereas in b +tree keys are stored in internal nodes whereas records are storing leaf nodes
In b +tree, no duplication is allowed but in b +tree duplication may occur
A b +tree usually preferred as an access structure to a data file as as the height of the tree remains balanced and less as compared to b -tree . We can assess the data stored in b +tree sequentially as well as directly . keys are used for indexing . Faster search queries as the data is stored only on a leaf nodes.
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When would you calculate an expected value? a. When your data points occur on different datesb. When your data points have various probabilities of occurringc. When you need to know the exact outcome of a future, unknown eventd. When you only have one data point
We calculate an expected value when the given data points have various probabilities of occurrence .
The expected value , applies best when we are performing the test or experiment many times. For example, EV applies well to gambling situations to describe expected results for thousands of gamblers per day, repeated day after day after day. However, the EV does not very accurately predict one particular outcome on one specific test.
For example, when drawing a playing card from a standard deck, on one specific draw, the likelihood of drawing a 2 is equal to the likelihood of drawing a 6 or 7 or 8 or any other numbered card.Over many many draws, the theoretical value to expect is 6.538. Obviously, there is no “6.538” card in the deck. But if you were gambling, you would expect to draw a card higher than 6 more often than not.To learn more about expected value
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Please help.
Solve the inequality show all your work
-4x+5>37
The solution for x in the inequality expression is x < -8
How to determine the solution for x?From the question, we have the following inequality expression that can be used in our computation:
-4x+5>37
Subtract 5 from both sides of the inequality
So, we have
-4x + 5 - 5 >37 - 5
Evaluate the like terms
This gives
-4x > 32
Divide both sides by -4
x < -8
Hence, the solution is x < -8
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Please help again 10 points again to first one
Answer: it would be 18 candies that are left
Step-by-step explanation:
I did the math
HELP QUICKLY THANK YOU!
The values are;
⇒ F ∩ H = Ф
⇒ F ∪ H = (- ∞, 7]
What is Coordinates?
A pair of numbers which describe the exact position of a point on a cartesian plane by using the horizontal and vertical lines is called the coordinates.
Given that;
F and H are defined as;
F = {v | v < 4 }
H = {v | v ≥ 7 }
Now,
Since, F and H are defined as;
F = {v | v < 4 }
H = {v | v ≥ 7 }
Hence, The values are;
F ∩ H = {v | v < 4 } ∩ {v | v ≥ 7 }
= Ф
And, F ∪ H = {v | v < 4 } ∪ {v | v ≥ 7 }
= (- ∞, 7]
Thus, The values are;
⇒ F ∩ H = Ф
⇒ F ∪ H = (- ∞, 7]
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In 1980, about 17.7 million households had cable television. This was about 25.8% of the households that had cable in 2000. How many households had cable in 2000?
In 2000, cable was available in 45683700000 homes.
What is percentage?Rather than being expressed as a fraction, a percentage is a piece of a whole expressed as a number between 0 and 100. Nothing is zero percent; everything is 100 percent; half of something is 50 percent; and nothing is zero percent. You divide the part of the whole by the whole and multiply the result by 100 to get the percentage.
In 1980, 17700000 = 25.8%\s1% = 4566600000
Then, in 2000, there were 45683700000 households (17 700 000 + 4566 600 000).
Comparing two amounts while rebasing the second amount to 100 is the simplest way to use percentages. Let's assume that we are interested in the proportion of employed women who are female.
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12) Which is a value for h that makes the following true?
Answer:-7
Step-by-step explanation:
-3(-7)+6>=24
21+6>=24
27>=24
Answer:
-7
Step-by-step explanation:
-3h + 6 is greater than or equal to 24.
Solve by simplifying the equation to get h standing alone
1. Subtract the 6 on both sides. -3h [tex]\geq[/tex] 18
2. Divide by -3 on both sides. h [tex]\leq[/tex] -6 (You swap the sign when you divide by a negative.
3. Choose the value less than -6. -7
1. (04.02)
What is the quotient when x³ - 5x² + 2x + 5 is divided by x - 2?
Answer: x²+3x-4 i
Step-by-step explanation: pretty sure its A
The mean cost of a five pound bag of shrimp is 42 dollars with a variance of 49. If a sample of 54 bags of shrimp is randomly selected, what is the probability that the sample mean would be less than 43.4 dollars? Round your answer to four decimal places.
The probability that the sample mean would be less than 43.4 dollars is 0.9292.
What is a probability?Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true.
From the information, the mean cost of a five pound bag of shrimp is 42 dollars with a variance of 49 and a sample of 54 bags of shrimp is randomly selected.
Therefore, the probability will be:
P(x < 43.4)
Using normal distribution
= P(z < 43.4 - Mean( / 7/✓54)
= P(z < 43.4 - 42( / 7/✓54)
= P(z < 1.4697)
= 0.9292
The probability is 0.9292.
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A triangle has side lengths of n, n – 3, and 2(n − 2). If the perimeter of the triangle is at least 37 units, what is the value of n?
OA.
n> 11
OB
n> 8
O C.
n > 10. 5
OD
n > 7. 5
Answer:
A. n ≥ 11
Step-by-step explanation:
You have a triangle with sides (n), (n-3), and 2(n-2). Its perimeter is at least 37 units, and you want to know the value of n.
PerimeterThe perimeter is the sum of the side lengths:
P = (n) +(n -3) +2(n -2)
P = n + n -3 +2n -4
P = 4n -7
ConstraintThe perimeter is at least 37, so we have ...
P ≥ 37
4n -7 ≥ 37
4n ≥ 44 . . . . . . . add 7
n ≥ 11 . . . . . . . divide by 4
The value of n is at least 11.
The mean of 11 numbers is 7 one of the numbers, 13, is deleted. What is the mean of the remaining 10 numbers?.
If mean of 11 numbers is 7 one of the numbers, 13, is deleted then the mean of remaining 10 numbers is 6.4
The mean of 7 numbers = 11
We know,
Mean = Sum of the terms / Number of terms
Substitute the values in the equation
11 = Sum of the terms / 7
The sum of the terms = 11 × 7
= 77
Number 13 is deleted
Sum of the terms = 77 - 13
= 64
Number of terms = 11 - 1
= 10
The mean = Sum of the terms / Number of terms
Substitute the values in the equation
= 64 / 10
= 6.4
Hence, the mean of the remaining 10 numbers is 6.4
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A store receives shipments of peaches and wants to categorize them by weight. Drag each shipment to the category that shows the ratio of peaches to pounds in that shipment
the ratio of peaches to pounds in that shipment is Category 2peaches/1lb: Shipment: 1 peach/0.5lb
Shipment: 12 peaches/6lb
Category 1peach/1,5lb:
Shipment: 3peaches/4.5lb
Shipment: 18peaches/27lb
Category 1.5peach/1lb:
Shipment: 15peaches/10lb
To find what category correspond to each shipment, you have to obtain the proportion for each category.
Category 2peaches/1lb proportion of 2.
Category 1peach/1,5lb proportion of 2/3:
Category 1,5peaches/1lb proportion of 3/2:
Now, reduce the shipments to its simplest form.
18/27 simplified by 9 = 2/3 proportion.
1/0.5 multiplied by 2 = 2 proportion.
12/6 simplified by 6 = 2 proportion.
3/4.5 simplified by 1.5 = 2/3 proportion.
15/10 simplified by 5 = 3/2 proportion.
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one thousand independent rolls of a fair die will be made. compute an approximation to the probability that the number 6 will appear between 150 and 200 times inclusively.
The probability that the number 6 will appear between 150 and 200 times inclusively is 0.926.
In the given question, one thousand independent rolls of a fair die will be made.
We have to compute an approximation to the probability that the number 6 will appear between 150 and 200 times inclusively.
Let n=1000 are independent trails.
The probability of success is constant, p=1/6
The probability of success is not constant,
q=1-1/6 = 5/6
let X be the number of times the die shows a 6.
μ = np
μ = 1000*1/6
μ = 166.7
σ=√npq
σ=√1000*1/6*5/6
σ=√5000/36
σ=11.785
Now we used the correlation continuity for finding the probability that number 6 will appear between 150 and 200 times is
P(150≤X≤200)=P(X≤200)-P(X<150)
P(150≤X≤200)=P(Z≤(200+0.5-166.7)/11.785)-P(Z≤(150-0.5-166.7)/11.785)
P(150≤X≤200)=P(Z≤2.87)-P(Z≤-1.46)
P(150≤X≤200)=0.998-0.072
P(150≤X≤200)=0.926
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Explain what the solutions to the inequality represent. Choose all that apply. (2 points) A. The outside air temperature must be greater than −40° F. B. The outside air temperature must be greater than 120° F. C. The outside air temperature must be less than 120° F. D. The outside air temperature must be less than or equal to 120° F. E. The outside air temperature must be less than −40° F. F. The outside air temperature must be greater than or equal to −40° F.
The linear inequality to represent the temperature is -40 < x < 120
What is Linear InequalityLinear inequalities are inequalities that involve at least one linear algebraic expression, that is, a polynomial of degree 1 is compared with another algebraic expression of degree less than or equal to 1. There are several ways to represent various kinds of linear inequalities.
Linear inequalities are usually in form of expressions where any two values are often compared by the inequality symbols such as, ‘<’, ‘>’, ‘≤’ or ‘≥’. These values could be numerical or algebraic or a combination of both.
But in this case, we wouldn't need that as we are only required to represent the problem with an inequality.
The linear inequality -40 < x < 120 shows that the outside air must be between the range of -40 degrees to 120 degrees.
This can be explained as the least temperature must be above -40°F and the highest temperature must not exceed 120°F
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You have an urn with 6 red, 10 blue and 4 black balls.
What is the probability that you take different colours in two"picks"?
The probability that you take different colors in two"picks" is 31/45.
You could choose one red followed by one blue, one blue followed by one red, one blue followed by one black, one black followed by one blue, one black followed by one red, or one red followed by one black.
P( different colors) = P( one blue followed by one red ) +P( one red followed by one blue) + P( one blue followed by one black ) +P( one black followed by one blue) +P( one black followed by one red ) +P( one red followed by one black)
P(one blue followed by one red) = (10/20)( 6/19) = 3/19
P(one red followed by one blue) = (6/20)( 10/19) = 3/19
P(one blue followed by one black) = (10/20)( 4/19) = 2/19
P(one black followed by one blue) = (4/20)( 10/19) = 2/19
P(one red followed by one black) = (6/20)( 4/19) = 6/95
P(one black followed by one red) = (4/20)( 6/19) = 6/95
P(different colors )= 3/19 + 3/19 + 2/19 + 2/19 + 6/95 + 6/95
= 31/45
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3. At the school festival, you can win a bicycle by pulling a red bull out of the bag. The first bag has 52 white balls, 27 green balls, and 11 red balls. The second bag has 25 white balls, 25 green balls, 25 yellow balls, and 10 red balls.
a. What are the odds of pulling a red ball from the first bag?
b. What are the odds of pulling a red ball from the second bag?
a) The Odds of pulling a red ball from the first bag is; 12.2%
b) The Odds of pulling a red ball from the second bag = 10/85 = 0.1176 = 11.76%
What is the probability of selection?We are given;
Number of white balls in first bag = 52
Number of green balls in first bag = 27
Number of red balls in first bag = 11
Total number of balls in first bag = 52 + 27 + 11 = 90 balls
Number of white balls in second bag = 25
Number of green balls in second bag = 25
Number of red balls in second bag = 10
Number of yellow balls in second bag = 25
Total number of balls in second bag = 25 + 25 + 10 + 25 = 85 balls
a) Odds(probability) of pulling a red ball from the first bag = 11/90 = 0.122 = 12.2%
b) Odds(probability) of pulling a red ball from the second bag = 10/85 = 0.1176 = 11.76%
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Who now what is egal 8+8-8×8÷8
Answer:
8+8-8×1
8+8-8
16-8
8 Ans.
Tell whether the expression is positive or negative without evaluating it. -3/10 X (-8/15)
The expression -3/10 X (-8/15) is positive
Expression
Expression in mathematics has two or more variables, terms and constants. Also, arithmetic expression contains only numbers and mathematical operators and algebraic expression
The expression has negative sign and from mathematical calculation we already know the following relation:
+ x + = +
positive multiply by positive equals Positive
- x - = +
Negative multiply by Negative equals Positive
+ x - = -
Positive multiply by Negative equal Negative
hence, - [tex]\frac{3}{10}[/tex] x - [tex]\frac{8}{15}[/tex]
The negative sign multiply by -3/10 X (-8/15) sign will give positive.
Therefore, the expression -3/10 X (-8/15) is positive.
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A car corporation produced 940
fewer cars this month than last.
Write a signed number to represent this month's change in production
The signed number to represent ''A car corporation produced 940 fewer cars this month than last'' is - 940.
What is meant by signed number representations ?Negative integers in binary number systems must be encoded in computation using signed number representations.In mathematics, negative integers in any base are denoted by a minus sign ("-") before them. However, numbers are solely represented as bit sequences, without any additional symbols, in RAM or CPU registers. The four most popular ways to express signed integers using the binary numeral system are offset binary, ones' complement, two's complement, and sign-magnitude. Some of the other techniques, such negative binary with the base 2, employ implicit signs rather than explicit ones. For different bases, whether positive, negative, fractional, or other elaborations on such themes, corresponding algorithms can be developed.Learn more about signed number refer to :
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on january 1 of every year, many people watch the rose parade on television. the week before the parade is very busy for float builders and decorators. roses, carnations, and other flowers are purchased from around the world to decorate the floats. Based on past experience, one float decorator found that 10% of the bundles of roses delivered will not open in time for the parade, 20% of the bundles of roses delivered will have bugs on them and be unusable, 60% of the bundles of roses will turn out to be beautiful, and the rest of the bundles of roses delivered will bloom too early and start to discolor before January 1. Conduct a simulation to estimate how many roses the float decorator will need to purchase to have 15 good bundles of roses to place on the float. 1. Describe how you will use a random number table jo conduct this simulation.
We select the option that corresponds to a random number between 1 and 10. We repeat this process until we get 15 good roses.
In the given question, one float decorator found that 10% of the bundles of roses delivered will not open in time for the parade.
20% of the bundles of roses delivered will have bugs on them and be unusable.
60% of the bundles of roses will turn out to be beautiful.
The rest of the bundles of roses delivered will bloom too early and start to discolor before January 1.
We have to conduct a simulation to estimate how many roses the float decorator will need to purchase to have 15 good bundles of roses to place on the float.
We also have to describe how you will use a random number table to conduct this simulation.
The random number table is
Not bloomBugBugGoodGoodGoodGoodGoodGoodBlossom too earlyNow we select the option that corresponds to a random number between 1 and 10.
We repeat this process until we get 15 good roses.
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You have saved $2.82 to buy a magazine that costs $7.39. Estimate how much more money you need to buy the magazine
HELPPPPPP MEEEEEEEE Ps. THIS IS DECIMALS AND STUFF
different data sets that have a median of 13
Two different data sets that have a median of 13 are
9, 10, 13, 18, 2010, 13, 13, 18How to determine the datasets?From the question, we have the following parameter
Median =13
The median of a dataset is the number at the middle position
So, we can make use of the following dataset
9, 10, 13, 18, 20
This is so because the middle number is 13
Another possible dataset is
10, 13, 13, 18
Similarly, this is because the middle number is 13
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