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Zolol [24]
3 years ago
9

Andy has some counters.

Mathematics
1 answer:
Semenov [28]3 years ago
7 0
Let total counters are 100. Then red are =15*100/100=15.Let A are the no. of blue counters.As yellow are 27.So red+Blue+yellow=100. ie 15+A+27=100.So A=100.15-27=58. ie Blue are 58%
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Jack lists all of the unique random samples of a certain sample size from a population. He then calculates the mean for each of
zimovet [89]

Answer:

In this case Jack is only using a part or sample of the total population, so he is doing a sample standard deviation. When you use the total population you are doing a population standard deviation, otherwise, it’s always going to be the sample standard deviation.

Both deviations have different notations. The notation for this type of standard deviation (the one used by Jack) is:

"n" for the number of observations (lowercase)

"x-bar" for the average of the sample

"s" for the standard deviation

"s^2" for the variance

5 0
3 years ago
A retailer planned to buy some computers from a total of sh 1800000. Before the retailer could buy the computers the price per u
Alex Ar [27]

Answer:

50 computers

Step-by-step explanation:

After reduction, he bought x computers hence price per unit was 1800000/x

Before reduction, price per unit was 1800000/(x-5)

The difference in the price is 4000 hence

\frac {1800000}{x}-\frac {1800000}{x-5}=4000\\4x^{2}-20x+9000=0\\x^{2}-5x+2250=0\\(x+45)(x-50)=0\\x=50 or -45

Therefore, x=50

3 0
3 years ago
I need help with both questions.
Nikitich [7]

Answer:

15 and 270

Step-by-step explanation:

Using the rule of radicals

\sqrt{a} × \sqrt{a} = a

\sqrt[3]{a} × \sqrt[3]{a} × \sqrt[3]{a} = a

(a)

Given

(\sqrt{5} )² × (\sqrt{3} )²

= 5 × 3

= 15

(b)

Given

(\sqrt[3]{9} )³ × (\sqrt{30} )²

= 9 × 30

= 270

4 0
3 years ago
Why is corruption discouraged in a country​
zysi [14]

Answer:Corrupted economies are not able to function properly because corruption prevents the natural laws of the economy from functioning freely. As a result, corruption in a nation's political and economic operations causes its entire society to suffer.

Step-by-step explanation:

7 0
2 years ago
Please help me out.................
user100 [1]

Answer:

y = 15

Step-by-step explanation:

In a parallelogram, opposite lengths are equal.

So it means that the length (5y - 20) is equal to (2y + 25).

Now that there is only one variable in the equation, we can solve for the variable.

5y - 20 = 2y + 25

5y - 2y = 25 + 20

3y = 35

y = 15

5 0
3 years ago
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