Mathematics Middle School

What is the mean,median,mode(s) an range if the numbers are 15,30,17,15,24,31,15

Answers

Answer 1

The mean is 21. The median is 15. The mode is 15. The range is 16.

Answer 2

Hello There!

Mean: Average of numbers in a set of data.

STEP 1: Add the numbers together. In this case, we would add

15 + 30 + 17 + 15 + 24 + 31 + 15 = 147

STEP 2: Divide the sum by the number of digits you added. We would divide

147 "sum of numbers" by 7 "number of digits" and we would get an answer of

21.

The mean for the set of data is 21

Median: The middle number when all the numbers are listed in order.

To find the median, we would put the lowest number on the left and the biggest number on the right and continue to go from least top greatest.

-Least To Greatest-

15-15-15-17-24-30-31

In our set of numbers, we cross out one number from the left and the right each time until we come across one number in the middle. The number that is in the middle in 17.

The median for this set of data is 17

Mode: The number that occurs most often in a set of numbers.

15-15-15-17-24-30-31

Since the number 15 occurs three times, the mode for the set of data is 15.

The mode for this set of data is 15

Range: The difference between the highest and the lowest number.

15-15-15-17-24-30-31

The highest number in the set of numbers is 31 and the lowest number in this set is 15.

31 - 15 = 16

The range for this set of data is 16

Related Questions

Estimating division 83 into 235

Answers

3 83 is rounded to 80 235 is rounded to 240 so just divid 240 and 80 which is 3

Sue wrote a doubles fact. It has, a sum less than 10 and greater than 4. The addends are each less than 5. What fact might she have written?

Answers

is the answer 6, cuz 3+3 would get u 6, which is less than 10 and greater than 4.

convert 86,000 cm to km. Show all of your work

Answers

86,000cm
To convert cm to metres you will need to divide it by 100.
So, 86,000/ 100 which is equal to 860m
Then, to convert it to km, you need to divide your answer by 1000
So, 860m / 1000 is equal to 0.86km
Thus the answer is 0.86km

Hope this helped

The sum of 2 consecutive integers is greater than 73

Answers

You can use the equation x+(x+1)=73 in this situation.
This would equal to 2x+1=73, which makes 2x=72. X would be 36, and 36+37 is 73.
Basically your answer would be any two integers, starting from 37 and up.
Ex. 37+38=75 or 38+39=77, and so on.
Only positive numbers can apply to this question because any number consecutive to a negative number would *definitely* be less than 73.

round 241,63 to the nearest thousand

Answers

24 000 -to the nearest thousand .

242,000 is 241,630 rounded to the nearest thousand. :)

Mr. Jansen is building an ice rink in his backyard that will measure 8.4 meters by 22 meters. What is the area of the rink?

Answers

The area of Mr.Jansen ice rink in the backyard is 184.8

The area of the rink is 184.8 m²

Further Explanation

From the problem above we know the measurement of the ice rink is

22 x 8.4 m

to calculate the area = length x width

= 22 x 8.4

Here is how to solve the decimal multiplication, we are going to multiply them as a whole number. The different is the placement of the decimal point in the answer. Using the standard algorithm method, the calculation would be:

22 ⇒ whole number (no decimal place)

8.4 x ⇒ 1 decimal place

176 +

184.8 ⇒ 1 decimal place

The first factor 22 doesn't decimal place

The second factor 8.4 has one decimal place

The result will has one decimal place (0+1=1)

Learn more

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Keywords: multiplication, decimal multiplication, two digits number additional, additional, area, measurement

Why do plants produce bright, colorful flowers and structures designed to disperse their seeds?

Answers

To make sure they spawn more flowers, and because colorful flowers attract more pollinators.

Yes to attract more bugs to pollinate them

If the maximum point of a quadratic is (-2,5) what is the equation of the quadratic?

Answers

The maximum point of (-2,5) is a vertex.
Because the vertex is a maximum, the parabola faces downward.
Therefore the leading coefficient of the quadratic term is negative.

The standard form of the parabola that represents the quadratic function is
y = -(x + 2)² + 5

The graph confirms that the equation is correct.

Answer: y = -(x + 2)² + 5

What is the answer to this equation 42 =7(z-3)

Answers

The answer is 42= 7(9-3), z would be 9

42= 7(z-3)
divide both sides by 7 to get rid of it:
6=z-3
add 3 on both sides
6+3=z

z=9

mia's garden is in the shape of a rectangle that measures about 29 meters long and 25 meters wide. what is the distance around mia's garden?

Answers

29m x 25 m equals 725m.

Calculating area, 29m x 25m would equal 725m. The distance around Mia's garden would be 725 m.

Which shows how we could find the area of a rug that is 6 ft on one side and 3 1/2 ft on the other side?

6 + 3 1/2

(6 x 3) + (6 x 2)

(6 x 1) + (6 x 3)

(6 x 3) + (6 x 1/2)

Answers

blah blah blah blah blah blah blah blah ( just to fill some space ) . The answer D.

Final answer:

The area of a rectangular rug given the dimensions 6ft by 3.5ft can be calculated by multiplying these measurements. The correct mathematical expression representing this concept is 6 x 3.5. When performed, it results in an area of 21 square feet.

Explanation:

To find the area of a rectangular rug, you need to multiply the rug's length by its width. Given that the rug is 6 ft on one side and 3.5 ft on the other side, you would multiply 6 ft by 3.5 ft.

So, the correct mathematical expression to find the area of the rug is 6 x 3.5.

To perform the multiplication, you would do:

Multiply the whole number part of 3.5 (which is 3) by 6, which gives you 18.Multiply the fractional part of 3.5 (which is 0.5) by 6, which gives you 3.Add those two results together (18 + 3) to get the total area of the rug: 21 square feet.

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44x10 to the power of 4

Answers

37,480,960,000 is the answer to 44×10 to the power of 4

44x10=440. 440^4= 37,480,960,000

Create and show how to solve a problem with 3 fractions and involves multiplication and division. The problem should include canceling and reciprocals.

Answers

1). 16 x 3/4 Step One- 16/1 x 3/4 Step two- 4 goes into 16 four times so cancel the 4 and change the 16 to a 4... Step three- 4 x 3=12 2). (81/16) divided by (9/14) Step one- Since its division we use (FREEZE CLAP FLIP)= Freeze (81/16) Clap the division sign and change it to a multiply sign and Flip the riprocals (9/14) The equation is now 81/16 X 14/9 Next 81 is divisible by 9 and 16 and 14 are divisible by 2 So the new formula i s 9/8 X 7/1 Solution=63/8 3). 2/3 divided by 4/3 Flip the reciprocals for the 4/3 New equation is 2/3 X 3/4 2 and 4 are divisible by 2 and the 3's cancel each other out Solution: 1/2

to rent a bike for 3 hours it costs $12. for 5 hours it costs $20. a) write an equation that models the cost of a bike rental as a function of hours rented. b) how much will it cost to rent a bike for 1 hour?

Answers

To answer b - You need to find how much it costs to rent a bike per hour. To do this divide the over all cost ($12) by your amount of time (3 hrs) to get $4 per hour. Same with the $20 per 5 hours!

solve the equation for y

-4 ( y - 2 ) = -8

y = ??

Answers

Hello there!

-4(y - 2) = -8
Use the distributive property
(-4)(y) + (-4)(-2) = -8
-4y + 8 = -8
Then, subtract 8 from both sides
-4y + 8 - 8 = -8 - 8
-4y = -16
Divide both sides by -4
-4y/-4 = -16/-4
y = 4

Best of luck!

Determine the time needed to deliver 72 papers at a rate of nine papers in 18 minutes

Answers

9:18 = 72:?
72/9 = 8
18 x 8 = 144
It'll take 144 minutes to deliver 72 papers, or 2 hours and 24 minutes.

Find f(2) if f(x) = 2x + 1. Plz help

A)
3

B)
5

C)
7

D)
9

Answers

Its B pretty easy 2 x 2 + 1

Answer:

B) [tex]f(2)=5[/tex]

Step-by-step explanation:

1. Write the function given:

[tex]f(x)=2x+1[/tex]

2. Find f(2) means to evaluate the function when x=2, so you need to replace x with the number 2, that is:

Replacing x with the number 2:

[tex]f(2)=2*(2)+1[/tex]

Multypling numbers:

[tex]f(2)=4+1[/tex]

Adding the numbers:

[tex]f(2)=5[/tex]

Therefore the answer is B) 5

A stack of 8 books weighs 9.6 pounds. If each book weighs the same amount, how much does each book weigh?

Answers

each books weighs 1.2lbs

Start with 9.6 divided by 8.

You would get 1.2. Therefore, each book weighs exactly 1.2 pounds.

Hope this helps!

HELP YOU ONLY HAVE TO ANSWER 1 BUT YOU CAN DO ALL IF YOU WANT

1. Kim's age is twice that of her sister. When you add Kim's age to her sister's age, you get 36. How old is each sister?

(a) Write an equation that represents the situation. Explain any variable used.
(b) Solve the equation from Part (a). Show your work. State your solution as a complete sentence.

2. Solve each given equation and show your work. Tell whether it has one solution, an infinite number of solutions, or no solutions, and identify each equation as an identity, a contradiction, or neither.

(a) 6x + 4x - 6 = 24 + 9x
(b) 25 - 4x = 15 - 3x + 10 - x
(c) 4x + 8 = 2x + 7 + 2x - 20

3. At a bargain store, Tanya bought 3 items that each cost the same amount. Tony bought 4 items that each cost the same amount, but each was $2.25 less than the items that Tanya bought. Both Tanya and Tony paid the same amount of money. What was the individual cost of each person's items?

(a) Write an equation. Let x represent the cost of one of Tanya's items.
(b) Solve the equation. Show your work.
(c) Check your solution. Show your work.
(d) State the solution in complete sentences.

Answers

3. c x 3 = 4
c x 3/3 = 4/3 ( Use the inverse of operation and divide both sides of the equation to isolate the variable)
c = 4/3
c = 1.333333333, 3/4 = 0.75

1)sister-x
kim will represent 2x
x+2x=36
3x=36
x=12
2x=24
Kim is 24 years old and her sister is 12 years old.

3).3x will represent tanya and 4y will represent tony.
3x=4(x-2.25)

6 times the sum of a number t and 5 is s

Answers

Final answer:

The verbal statement '6 times the sum of a number t and 5 is s' is translated into the algebraic equation 6(t + 5) = s, which is a linear equation used to solve for either t or s.

Explanation:

The student's question involves creating an algebraic equation from a verbal statement. In this case, the expression '6 times the sum of a number t and 5 is s' can be translated into an algebraic equation. To do so, we first represent the sum of the number t and 5 as (t + 5). We then multiply this sum by 6 to represent '6 times the sum', which gives us the equation 6(t + 5) = s.

This equation allows us to solve for the number t when s is known, or vice versa. It is a basic linear equation that can be used in various mathematical problems to determine the value of s given a specific t, or to find t when s is known.

26,000 rounded to NEAREST ten thousand

Answers

30,000, because if you look in the 6 in the thousands place it is over 5 so you round up

The value after rounding 26,000 to its nearest ten thousands is 30,000.

Given,

26,000

We need to round to its nearest ten thousands.

What is the place value of a number?

Example:

235678

8 - ones

7 - tens

6 - hundreds

5 - thousands

3 - ten thousands

2 - hundred thousands

Round 26,000 to its nearest ten thousand.

26,000

2 is in ten thousands place value.

So we need to round either to 20,000 or 30,000.

Since 26000 > 2499 we will round to 30,000.

= 30,000

Thus 30,000 is our answer.

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An organisation has a monthly budget of x dollars. Every month $2,070 is spent on salaries. One-fourth of the remaining budget is spent on monthly activities.

Which function can be used to find the amount in dollars spent on monthly activities?

Please help. Not hard I just don't understand. Thanks

Answers

Answer:D

Step-by-step explanation:

X is the budget

So you already know you have to subtract 2070 for salaries then 1/4 of that that is the answer the only way that can be expressed is by D

The function that can be used to find the amount in dollars spent on monthly activities is D. f(x) = x-2070 / 4

Monthly budget of the organization = x

Amount spent on salaries = 2070

Amount spent on monthly activities will be calculated thus:

= 1/4 × (x - 2070)

= (x - 2070) /4

Therefore, for the information and the calculation given above, it can be inferred that the correct option that suits the expression will be D.

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1. Do you agree with Alex's choice of jobs? Why or why not? (1 point)

Answers

Im confused? Need more information to answer the question.

If 1/72x=1/9 then what does 96/x equal???

Answers

1/72 (8) =1/9
So x=8
Not sure if you want to multiply or divide 96 by x.
Multiply- 768
Divide- 12

96/x would equal 12. Hope this helps!

7,231 divided by 24 is?

Answers

301.2916666667 is your answer.

I use a calculator and got this --> 301.291666667.

I hope this helps you! :)

A tortoise is walking in the desert. It takes
4
minutes to walk
6.4
meters. What is its speed?

Answers

speed = distance / time

Here, speed = 6.4 meters / 4 minutes =1.6 meter / minute (answer)

The formula for speed is S = Distance/Time.
if you plug 6.4 in for distance and 4 in for time, s = 6.4/4. 6.4/4 = 1.6, so the speed of the tortoise is 1.6 meters per second, or 1.6 m/s

Do you agree or disagree with the statement: "A rise of -7°C" means "a fall of 7°C"? Explain.

Answers

Yes because either way you are saying that its -7°C for example rise -7°C (+(-7°) or a fall of 7° (-7°)

I agree that the rise of -7 c means to fall of 7c

A twelve inch candle and an eighteen inch candle are lit at six pm. The twelve inche candle burns . 5 inches every hour and the 18 inche candle burns 2 inches every hour at what time will the two candles be the same height?

Answers

At 10pm
18 - 2t = 12 - 0.5t
6 = 1.5t
t = 6/1.5
t = 4 hours

The diameter of a circle is the same length as the side of a square . The perimeter of the square is 16 cm . Find the diameter of the circle . Then find the circumference of the circle in terms pie?

Answers

perimeter of a square = 4*side
by substituting
16=4*side
dividing by 4
side=4
since diameter=side
then the circumference =d*pi
therefore=4*pi is the circumference

find the value of x. the diagram is not to scale.

Answers

opposite angles are equal so where the 110 is outside the triangle, it is also 110 inside the triangle.

the 3 angles need to = 180

so you have 110 + 57 = 167

x = 180-167 = 13

x = 13

The top angle is going to be 110 too so you add 110 and 57 which equals 167. Subtract that from 180 and the answer is x=13

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