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3 years ago

Find the median of :

Mathematics

2 answers:

dusya [7]3 years ago

8 0

Answer: 28.

Step-by-step explanation:

The median of a data set is defined as the middle value of a data set.

For instance, the median of the data set [4, 7, 8] would be 7 because it is the "middle value".

You can find this by sorting the numbers by smallest to largest:

2, 9, 15, 16, 21, 24, 28, 32, 34, 35, 37, 39, 40

There are 13 numbers in the set, so you can exclude the first 6 and last 6 numbers from the set to get your median, 28.

konstantin123 [22]3 years ago

8 0

Answer:

Median = 28.

Step-by-step explanation:

First arrange the list in ascending order:

2 9 15 16 21 24 28 32 34 35 37 39 40

The median is the middle number,

There are 13 numbers so the middle number is the 7th - that is 28.

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777dan777 [17]

Answer:

x = 90, y = 43

Step-by-step explanation:

By the SAS theorem (as you can tell by the picture) angles B and C are similar, which means they are both 47 degrees.

Since the triangles are similar (SAS theorem) then angle x must be equal to 90 degrees, because they are on a straight line both angles would need to add up to 180 degrees.

Now that you have two angles out of three, you can solve for the last angle by setting up this equation:

B + D + A = 180

47 + 90 + A = 180

Add 47 and 90 together.

137 + A = 180

Subtract 137 from both sides.

A = 43

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Step-by-step explanation:

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A number. n, plus 10 is less than 34

guapka [62]

Answer:

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Step-by-step explanation:

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3 years ago

The Drama Club held a car wash to raise money. The equation y = 15x represents the amount of money y club members made for washi

oksian1 [2.3K]

Answer:

Step-by-step explanation:

Given that:

y = 15x

y = amount of money made by club members made for washing cars

x = number of cars washed

From the equation given ;

Amount made is directly proportional the number of cars washed

Mathematically,

y α x

y = kx

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Suppose a city with population 100,000 has been growing at a rate of 8% per year. If this rate continues, find the population

Natalija [7]

Answer:

$370,002\ people$

Step-by-step explanation:

In this problem we have a exponential equation of the form

$y=a(b^x)$

where

y is the population of the city

x is the number of years

a is the initial value or y-intercept

b is the base

r is the rate of growth

b=(1+r)

we have

$a=100,000\ people\\r=8\%=8/100=0.08\\b=1+0.08=1.08$

substitute

$y=100,000(1.08^x)$

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substitute the value of x in the exponential equation and solve for y

$y=100,000(1.08^17)$

$y=370,002\ people$

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4 years ago