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Scilla [17]
3 years ago
10

What is 9 ten thousands ÷10

Mathematics
2 answers:
Marizza181 [45]3 years ago
7 0
9 ten thousands is equalled to 9•10,000=90,000.
(Nine multiplied by ten thousand equals to ninety thousand)
90,000/10=9,000,
(Ninety thousand divided by ten equals nine thousand)
The answer to this question is 9,000
borishaifa [10]3 years ago
6 0
9 ten-thousands is 9*10,000=90,000.  90,000/10 is 9,000, or nine thousands.
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Insert a digit to make the number divisible by 24 if possible:<br> 44_8<br> pls help
Nat2105 [25]

Answer:

it's 4488 Wich would make 187

5 0
3 years ago
Which statement is true about the prime polynomial
konstantin123 [22]

Answer:

a

Step-by-step explanation:

7 0
2 years ago
Scores on a final exam taken by 1200 students have a bell shaped distribution with mean=72 and standard deviation=9
SVETLANKA909090 [29]

Answer:

a. 72

b. 816

c. 570

d. 30

Step-by-step explanation:

Given the graph is a bell - shaped curve. So, we understand that this is a normal distribution and that the bell - shaped curve is a symmetric curve.

Please refer the figure for a better understanding.

a. In a normal distribution, Mean = Median = Mode

Therefore, Median = Mean = 72

b. We have to know that 68% of the values are within the first standard deviation of the mean.

i.e., 68% values are between Mean $ \pm $ Standard Deviation (SD).

Scores between 63 and 81 :

Note that 72 - 9 = 63 and

72 + 9 = 81

This implies scores between 63 and 81 constitute 68% of the values, 34% each, since the curve is symmetric.

Now, Scores between 63 and 81 = $ \frac{68}{100} \times 1200 $

= 68 X 12 = 816.

That means 816 students have scored between 63 and 81.

c. We have to know that 95% of the values lie between second Standard Deviation of the mean.

i.e., 95% values are between Mean $ \pm $ 2(SD).

Note that 90 = 72 + 2(9) = 72 + 18

Also, 54 = 63 - 18.

Scores between 54 and 90 totally constitute 95% of the values. So, Scores between 72 and 90 should amount to $ \frac{95}{2} \% $ of the values.

Therefore, Scores between 72 and 90 = $ \frac{95}{2(100)} \times 1200 = \frac{95}{200} \times 1200  $

$ \implies 95 \times 12 $ = 570.

That is a total of 570 students scored between 72 and 90.

d. We have to know that 5 % of the values lie on the thirst standard Deviation of the mean.

In this case, 5 % of the values lie between below 54 and above 90.

Since, we are asked to find scores below 54. It should be 2.5% of the values.

So, Scores below 54 = $ \frac{2.5}{100} \times 1200 $

= 2.5 X 12 = 30.

That is, 30 students have scored below 54.

8 0
2 years ago
The winner of a raffle will receive three/fourths of the money raised from a raffle ticket sales the raffle raised $530.40 how m
Roman55 [17]
It is 397.8 bc if u make 530.4 a fraction = 530.4/1 then u just multiply it by 3/4 u will get 1591.2/4 then u simply reduce it by dividing ( top in , bottom out ) and u get 397.8
7 0
2 years ago
The answer I'm struggling because I'm stupid
nikklg [1K]

Answer: y= 9x+1


Step-by-step explanation:

Even though I'm only in 7th grade....

Divide 19/2= 9. Something

19-1=18, and 18/2=9

Do the same to others to check


6 0
3 years ago
Read 2 more answers
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