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Mamont248 [21]
3 years ago
15

The Mean of 5 numbers is 20 the median is 23 what might the number be

Mathematics
2 answers:
valentina_108 [34]3 years ago
7 0

13, 15, 23, 24, 25

Median is 23 because it comes in middle of five numbers

To find the mean, add up the values in the data set and then divide by the number of values that you added

if we sum these numbers we get 100 then divide it by 5 we get

100/5 = 20

lozanna [386]3 years ago
3 0

Answer:

<h2>12, 14, 23, 25, 26 </h2>

Step-by-step explanation:

We know that:

  • The mean is 20.
  • The median is 23.

If the mean is 20, then the sum of all number must be 100, because:

x=\frac{\sum x_{i}  }{N} \\20=\frac{\sum x_i}{5} \\\sum x_i=100

Also, we know that the median is 23, this means that the middle number is 23, because they number of elements is an odd number (5), when that happens, the median is always the number placed in the middle.

So, we know that the middle number is 23, now we have to find for numbers that sum 77, because 77+23 = 100.

The numbers that fit with all these characteristics are:

12, 14, 23, 25, 26

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6 0
3 years ago
You have 100 feet of fencing and decide to make a rectangular garden. What is the largest area enclosed
k0ka [10]

Answer:

625 ft^2

Step-by-step explanation:

Given

P = 100 --- perimeter

Required

The largest area

The perimeter is calculated as:

P = 2 * ( L + W)

So, we have:

2 * ( L + W) = 100

Divide both sides by 2

L + W  = 50

Make  L the subject

L = 50 - W

The area is calculated as:

A= L * W

Substitute L = 50 - W

A= (50 - W) * W

Open bracket

A = 50W - W^2

Differentiate with respect to W

A' = 50 -2W

Set to 0; to get the maximum value of W

50 - 2W = 0

Collect like terms

-2W = -50

Divide by -2

W = 25

So, the maximum area is:

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A = 50 * 25 - 25^2

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3 0
2 years ago
A cone has a base with a radius of 9 mm and a height of 13 mm. What is the volume of the cone?
avanturin [10]

\huge\underline{\red{A}\blue{n}\pink{s}\purple{w}\orange{e}\green{r} -}

  • Given - <u>a </u><u>cone </u><u>with </u><u>base </u><u>radius </u><u>9</u><u>m</u><u>m</u><u> </u><u>and </u><u>height </u><u>1</u><u>3</u><u> </u><u>mm</u>

  • To calculate - <u>volume </u><u>of </u><u>the </u><u>cone</u>

We know that ,

Volume \: of \: cone =  \frac{1}{3}\pi \: r {}^{2}  h \\

<u>su</u><u>b</u><u>stituting </u><u>the </u><u>values</u><u> </u><u>in </u><u>the </u><u>formula</u><u> </u><u>,</u>

Volume =  \frac{1}{3}  \times  3.14  \times 9 \times 9 \times 13 \\  \\  \implies \: 1.05 \times 81 \times 13 \\  \\ \implies \: 1105.65 \: mm {}^{3}

hope helpful ~

7 0
2 years ago
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