The test scores for a math class are shown below. 81, 85, 82, 93, 85, 84, 95, 87, 88, 91 39. What are the mean, median, and mode of the data set?​

Answers

Answer 1
The median is the middle term in the arranged data set. In the case of an even number of terms, the median is the average of the two middle terms.
85
+
87
2
85
+
87
2
Remove parentheses.
85
+
87
2
85
+
87
2
Add
85
85
and
87
87
.
172
2
172
2
Divide
172
172
by
2
2
.
86
86
Convert the median
86
86
to decimal.
86

Related Questions

Solve if x=11. X+44/2×=
How do you resolve this

Answers

Answer:

33

Step-by-step explanation:

11+44/2=11+22=33

Meg has 10 feet of ribbon that she wants to divide into of foot pieces. How many foot pieces are there in 10 feet?

Answers

Answer:

20

Step-by-step explanation:

A person has 2 feet (1 is a foot)

Meg has 10 feet of ribbon

therefore 10 × 2 = 20

in 10 feet there are 20 "foot"

Write a method that takes a Rectangle as a parameter, sets its length to a random, even integer between 10 and 20 inclusive, and sets its width to a random, odd integer greater than or equal to 7 and less than 14. Use Math.random() to generate random numbers.

This method must be called randomize() and it must take a Rectangle parameter.

You can call your method in the program's main method so you can test whether it works, but you must remove or comment out the main method before checking your code for a score. You will also need to make sure you do not remove the import statement "import testing.Math" as this is required to check your code for a score.

in java

Answers

The method for the rectangle is written in italic using Java as shown below

How to write a method in Java that takes a Rectangle as a parameter?

Below is a method in Java that takes a Rectangle as a parameter, sets its length to a random, even integer between 10 and 20 inclusive, and sets its width to a random, odd integer greater than or equal to 7 and less than 14.

import java.awt.Rectangle;

public void setRandomDimensions(Rectangle rect) {

   int length = (int) (Math.random() * 6) * 2 + 10; //generates a random even integer between 10 and 20

   int width = (int) (Math.random() * 4) * 2 + 7 + 1; // generates a random odd integer between 7 and 13

   rect.setLength(length);

   rect.setWidth(width);

}

Note: The method uses the setLength() and setWidth() methods of the Rectangle class to set the length and width of the rectangle to the generated random numbers.

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65 = x - 12 sdfgjkl;

Answers

Answer:

Step-by-step explanation:

Hi! To do this problem, you have to add 12 to both sides to get x by itself since you want to find what x equals.  What you do is: x - 12 + 12 = 65 + 12.  You would get x = 65 + 12.  Find what 65 + 12 is and you will get your answer.  I hope this helps!

Figure A is a scale image of figure B.
Figure A maps to figure B with a scale factor of [tex]2/7[/tex]

Answers

The value if side x is 42

How are scale drawings formed?

For a particular scale drawing, it is already specified that all the measurements' some constant scaled version will be taken. For example, let the scale be K feet to s inches.

Then it means

[tex]\rm 1\: ft : \dfrac{s}{k}\: in.[/tex]

All feet measurements will then be multiplied by s/k to get the drawing's corresponding lengths.

Given;

Scale factor= 12

Now, to find the value of x;

We will divide 12 by the scale factor

=12/(2/7)

=(12x7)/2

=42

Therefore, with scale factor 2/7 the side x of figure A will be 42

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A mass of a basket with 60 apples was 3 1/5 kg. The mass of an identical basket
with 40 apples was 2 2/5 kg. What was the mass of the empty basket?
Give your answer as a fraction in its simplest form.

Answers

The weight of a basket containing 60 apples was 3 1/5 kg. An identical basket containing 40 apples weighed 2 and a half kilograms. It weighs 150 pounds.

Is an apple a gram or kilogram?

The typical weight of an apple ranges from 150 g to 250 g. A 10 g error was discovered in the weight of each apple. The average weight of apples is calculated by dividing the total number of apples by the actual weight of the apples. Consequently, 10 apples actually weigh 62 g on average. As an apple is rather little, the measurement should be in grams.

Apples have a high fiber content. About 4 grams, or 17% of the Daily Value, of this vitamin may be found in a single medium-sized apple (100 grams) (DV). We divide the mass of the element in 1 mole of the compound by the compound's molar mass and multiply the result by 100 to determine the mass percent of the element in the compound.

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Ernie can plow a field alone in four hours. It takes Sid five hours to plow the same field alone. If they work together (and each has a plow), how long will it take to plow the field?

Answers

The time that it will take to plow the field together is 2 2/9 hours.

How to calculate the value?

A word problem in mathematics simply refers to a question that is written as a sentence or in some cases more than one sentence which requires an individual to use his or her mathematics knowledge to solve the real life scenario given.

Based on the information, this will be illustrated as:

1/4 + 1/5 = 1/t

where t = rate together

5/20 + 4/20 = 1/t

9 / 20 = 1 / t

9t = 20

Divide

t = 20 / 9

t = 2 2/9 hours.

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The earth is approximately 93,000,000 miles from the sun how long does it take from the Sun to reach the earth use the speed of light to be 1.86×10^5 Miles per second

Answers

The light from the sun takes 8 minutes 20 seconds to reach the earth.

What is the speed of an object?

Speed is the rate at which an object's position changes, measured in meters per second. For example, if an object starts at the origin, and then moves three meters in three seconds, its speed is one meter per second. The equation for speed is simple: distance divided by time

Given here: The distance is 93,000,000 miles and the speed of light as 1.86×10⁵ miles per hour.

Now we know speed = Distance/ time

Thus we have Time taken = 93000000/1.86×10⁵

                                           = 8 minutes 20 second (approx)

Hence, The light from the sun takes 8 minutes 20 seconds to reach the earth.

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4 divided by 6 as a fraction draw picture

Answers

4/6 so if simplified it’s 2/3

A carpenter installing cabinets uses thin pieces of material called shims to fill gaps. The carpenter uses four shims to fill gap that is 1.5 centimeters wide. The width of three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.1 centimeter. What is the width of the fourth shim

Answers

The width of the fourth shim used by a carpenter is, 0.525 centimeter.

What is Addition?

The process of combining two or more numbers is called the Addition. The 4 main properties of addition are commutative, associative, distributive, and additive identity.

Given that;

The carpenter uses four shims to fill gap that is 1.5 centimeters wide.

And, The width of three of the shims are 0.75 centimeter, 0.125 centimeter, and 0.1 centimeter.

Now, Let the width of the fourth shim used by a carpenter = x

So, We can formulate;

⇒ x + 0.75 + 0.125 + 0.1 = 1.5

⇒ x + 0.975 = 1.5

⇒ x = 1.5 - 0.975

⇒ x = 0.525 centimeter

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How much is 5/9 of -3/5

Answers

Answer: -0.333 repeating

Step-by-step explanation:

5/9 x -3/5 = -0.3 repeating decimal

Your answer for this would be -0.333 repeating decimal, which converts to ~-1/3 ! I hope this helps lol :)

A kindergarten class has 24 children. The teacher wants them to get into 4 equal groups. How many children will be put in each group?

Answers

The number of children in each group is 6.

What is division?

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

A kindergarten class has 24 children.

The teacher wants them to get into 4 equal groups.

That means,

the number of the children in a group,

= total number of children / number of groups

= 24 / 4

= 6

Therefore, the number of children in a group is 6.

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Frequency tables are more versatile than line plots because you can change
the size of the groupings on the horizontal axis depending on how detailed of
a graph you want.
о A. True
O B. False

Answers

In a frequency table, the frequency at which each value appears in a data collection is used to summarise the data set.

What is the difference between frequency table and a line plot?

In a frequency table, the frequency at which each value appears in a data collection is used to summarise the data set. The frequency of data over a number line is depicted on a graph called a line plot. Data that is arranged numerically is referred to as organised data.

A line plot is a graph that shows information as dots or checkmarks above a number line, indicating the frequency of each value. The line plot, for instance, displays the quantity of ribbons in this case, broken down by length. Line graphs and plots of lines are frequently mistaken. Compared to a line graph, a line plot is distinct.

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92 people had lunch in the cafeteria. 9 people had soup, a sandwich, and a drink. 33
people had soup, 45 had a sandwich, and 52 had a drink. 5 people had soup and a sandwich. 10 people had a sandwich and a drink. 5 people had soup and a drink. How many people had only a drink?

14 people
21 people
28 people
93 people

Answers

Answer:

28

Step-by-step explanation:

52 in toatal had a drink

10 had a drink and a sandwich

5 had drink and soup

9 had all

so in total out of the 52 drinks, 24 had a drink and something

52 - 24 = 28

What is the solution to the system of equations?

Answers

The variable mappings that satisfy all component equations are the solutions of systems of equations, or the points where the components of these equations overlap.

what is equations ?

Using the equal symbol (=) to indicate equivalence, a mathematical equation is a formula that joins two statements. An equation in algebra is a statement of mathematics proving the equality of two mathematical expressions. In the equation 3x + 5 = 14, for example, the equal sign places the variables 3x + 5 and 14 apart. The relationship between two sentences on either side of a letter is described by a mathematical formula. A single variable, which also serves as the symbol, is frequently present. like in 2x - 4 = 2, for instance.

given

The variable mappings that satisfy all component equations are the solutions of systems of equations

, or the points where the components of these equations overlap.

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please help me with math i’ll give you brainlist!!

Answers

X intercept: 10/5 = 2

Y intercept: 10/-2 = -5

How find x intercept and y intercept

The x intercept is the point where the line crosses the x-axis and the y intercept is the point where the line crosses the y-axis.

To find the x-intercept, set y = 0 and solve for x. To find the y-intercept, set x = 0 and solve for y.

In this question,

1. To find x intercept, set y = 0

  5x - 2(0) = 10

  5x = 10

  x = 2

2. To find y intercept, set x = 0

  5(0) - 2y = 10

  -2y = 10

 y = -5

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convert the following
1. 518 farenheight to celsius
200 celcius to farenheight

Answers

Answer:The Fahrenheit (symbol: °F) is a unit of temperature that was widely used prior to metrication. It is currently defined by two fixed points: the temperature at which water freezes, 32°F, and the boiling point of water, 212°F, both at sea level and standard atmospheric pressure. The interval between the freezing and boiling point is divided into 180 equal parts.

Step-by-step explanation: HOPE THIS HELPS :)

does x = y - 2/9 show direct variation

Answers

The equation:

x = y - 2/9

Does not show a direct variation.

Does that equation show a direct variation?

A direct variation between two variables x and y can be written as:

y = k*x

Where k is a constant and it is called the constant of proportionality.

In this case, the given equation is:

x = y - 2/9

We can rewrite that as:

y = x + 2/9

Where you can see we have a constant term equal to 2/9, so no, this is not a direct variation, as in the direct variation there is no constant term.

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An Uber ride costs $13.15 for a 3 mile trip and $18.25 for a 5 mile trip find the rate of the cost per mile

Answers

The cost per mile for both trips are $4.5 and $3.65

How to calculate the cost per mile ?

An uber ride costs $13.15 for a 3 mile trip and $18.25 for a 5 mile trip

The cost per mile for both trips can be calculated as follows

The first step is to calculate the cost of mile for the First trip

13.15= 3

x= 1

cross multiply both sides

3x= 13.15

x= 13.15/3

x= 4.5

The next step is to calculate the cost of mile for the Second trip

18.25= 5

y= 1

cross multiply both sides

5y= 18.25

y= 18.25/5

y= 3.65

Hence the cost per mile for both trips are $4.5 and $3.65

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Which mathematical words describe (x−2) in the expression 4(x−2)+1? Select ALL that apply.

term

term

factor

factor

difference

difference

constant

constant

coefficient

Answers

The mathematical words describe (x−2) are term, factor, difference, constant, and  coefficient

What is an mathematical expression?

An mathematical expression is a combination of numbers, symbols, and operations that represent a value or a relationship between values.

Mathematical words that describe (x−2) in the expression 4(x−2)+1 include:

Term: A term is a single number, variable, or the product of a number and one or more variables. In this expression, (x−2) is a term.

Factor: A factor is a number or algebraic expression that divides another number or expression without a remainder. In this expression, (x−2) is a factor, since 4 divides it without a remainder.

Difference: A difference is the result of subtracting one number or expression from another. In this expression, (x−2) is a difference, since it is the result of subtracting 2 from x.

Constant: A constant is a number or expression that has a fixed value. In this expression, (x−2) is a constant, since its value is fixed even when x changes.

Coefficient: A coefficient is a numerical factor that multiplies a variable. In this expression, 4 is the coefficient of (x−2).

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Sue and Pam are sisters, but they live far from each other. They both
want a garden at their respective homes, and they decide they want to
build identical flower gardens that are in the shape of a triangle.
They spend a lot of time emailing and talking on the phone, trying to
figure out how to make these triangular gardens exactly the same.
• Sue suggests that they each make their gardens with brick walls
outlining the gardens, and they should make sure all three angles
of the two triangles are the same: 30, 60, and 90. Sue asserts
that this will make their gardens congruent.
Pam likes the idea of the wall, but instead she thinks that they
should make their triangles equal by making one wall 7 feet long
with a 30 angle attached to it. Sue says the other two walls
will match up to make a triangle, and that their triangles will
be equal.
The two women can't agree on the best method. They hire you to help
them with the design.
Determine if either of their methods will create congruent
triangular gardens. Use your congruent triangle theorems, like
SSS, ASA, SAS, to decide.
If you don't think that a method will work, you must explain why
the method will not work.
How do you think Sue and Pam should create congruent triangular
gardens?

Answers

On solving the provided question we can say that so SAS, the are congruent triangles

What is triangle?

A triangle is a polygon since it has three sides and three vertices. It is one of the basic geometric shapes. The name given to a triangle containing the vertices A, B, and C is Triangle ABC. A unique plane and triangle in Euclidean geometry are discovered when the three points are not collinear. Three sides and three corners define a triangle as a polygon. The triangle's corners are defined as the locations where the three sides converge. 180 degrees is the result of multiplying three triangle angles.

here,

we have to triangles

with angles as 30,60,90 and 60,60,90 respectively

and 2 sides of 7 cm each.

so SAS, the are congruent triangles

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2y−5x=−10? help me please

Answers

Solution is under this…

Solution:

dy 5
— = —
dy 5

f(x) has domain
✔ {–4, –2, 0, 2, 4}
, and range
✔ {–2, –1, 0, 1, 2}
.

The rule that maps each domain value to its range value is f(x) =
x.

Answers

Answer:

f(x) = 0.5x

Step-by-step explanation:

note that each of the values in the range is half its corresponding value in the domain

- 4 ÷ 2 = - 2

- 2 ÷ 2 = - 1

0 ÷ 2 = 0

2 ÷ 2 = 1

4 ÷ 2 = 2

then

f(x) = [tex]\frac{1}{2}[/tex] x = 0.5x

The table below shows the ratios of black to white keys on pianos of various sizes.


Black A 36 63 90
White 13 B 91 C


Determine which table has the correct values for A, B, and C.

Black 9 36 63 90
White 13 52 91 130

Black 10 36 63 90
White 13 52 91 117

Black 9 36 63 90
White 13 39 91 117

Black 3 36 63 90
White 13 65 91 104

Answers

The table with the correct values for A, B and C is given as follows:

Black 9 36 63 90

White 13 52 91 130

What is a proportional relationship?

A proportional relationship is defined as follows:

y = kx.

In which k is the constant of proportionality.

The input and output variables for this problem are given as follows:

Input: number of black keys.Output: number of white keys.

Then the constant k is obtained as follows:

91 = 63k

k = 91/63

k = 13/9.

Hence the equation is:

y = 13x/9.

Hence the values are given as follows:

A: when x = 9, y = 13.B: when x = 36, y = 13 x 36/9 = 52.C: when x = 90, y = 13 x 90/9 = 130.

Hence the first table is correct.

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i need help with this math question !

Answers

Therefore , the solution of the given problem of inequality comes out to be  x=-3 or x<-3.

Define inequality.

In mathematics, an inequality is a linking of two equations or numbers when there isn't an equal sign. Unbalance therefore precedes inequity. When two numerical values are not equal, an inequality results in a relationship between them. Egality and inequality are not the same. Where variables are not similar or equal, have used the most common symbol (). There are various inequalities that can be utilized to contrast values regardless of how small or huge they are. Switching the two sides it until variables represent all that is left can address a variety of basic inequality problems. The combination or division with low values from both sides are only a few examples of the many factors that might cause inequality. You switch sides and the left.

Here,

Given : -3x ≤ 9

=> x ≤ 9/-3

=>x ≤  -3

Thus , x=-3 or x<-3

Therefore , the solution of the given problem of inequality comes out to be  x=-3 or x<-3.

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Three people swim a total of 2125 laps john swam 3 times more than rita and mathew swam 25 more than jhon how many laps did they each swim

Answers

Answer:

let x to be john

y to be Rita and z to be Mathews

Step-by-step explanation:

x+y+z=2125....,..........i

x=3y............................ii

y+25=z......................iii

from Qnii substitute in qn i

3y+y+z=2125

4y+z=2125

-y+z=25 by eliminate z

5y=2100 by 5 both sides

y=420

z=445

x=1260

Rita swam about 2125 laps
John swam about 2128 laps
Matthew swam about 2150 laps

ANSWER ASAP PLEASEEEEEE

Answers

Option three I think but not 100% sure

Find equation of the line that passes through the point a and point b

A=(1,7) B=(-3,-1
)

Answers

Answer:

Step-by-step explanation:

The equation of the line can be found using the two-point form:

y = mx + b

where m is the slope between the two points and b is the y-intercept.

For the given points A and B:

m = (y2 - y1) / (x2 - x1)

where (x1, y1) is point A and (x2, y2) is point B

m = (-1 - 7) / (-3 - 1) = -8/ -4 = 2

Next, find b using one of the points and the slope:

b = y - mx

b = 7 - 2 * 1 = 5

So, the equation of the line is:

y = 2x + 5

(Look at picture) ty btw :)!!!!! <3

Answers

By virtue of the characteristics of integer exponents, y^(-1/4) is a radical exponent. It is possible to contrast phrases and expressions.

what is expression ?

Mathematicians can multiply, divide, add, or subtract. An expression is structured as follows: Number/variable, mathematical operator, and expression Numbers, variables, and functions make constitute a mathematical expression. It is possible to contrast phrases and expressions. the practice of expressing one's opinions or demonstrating one's feelings by words or deeds: As a sign of his affection, he penned her a poem.

given

y^3/4 / y^1/2

= y^3/4 y^ -1/2

y ^( 3/4 - 1/2)

y^(-1/4)

By virtue of the characteristics of integer exponents, y^(-1/4) is a radical exponent. It is possible to contrast phrases and expressions.

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Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of 20 feet and a height of 16 feet. Container B has a diameter of 18 feet and a height of 18 feet. Container A is full of water and the water is pumped into Container B until Container B is completely full.

Answers

The volume of water in container B to the nearest tenth of a cubic unit is 20.1 cubic units

How to determine the volume of water?

This talks about the quantity or the amount of water the container B can hold after container A has been emptied.

We should note here that the volume of water in container B is the same quantity of water in container A.

This implies that  Volume = πm(20)²(16)

Volume = 22/7 * 400 * 16

Volume = 140800/7

Therefore, the volume of water B can contain is 20.1 cubic units

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Complete question:

Two containers designed to hold water are side by side, both in the shape of a cylinder. Container A has a diameter of  20 feet and a height of 16 feet. Container B has a diameter of 18 feet and a height of  18feet. Container A is full of water and the water is pumped into Container B until Container A is empty. After the pumping is complete, what is the volume of water in container B to the nearest tenth of a cubic unit?

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