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daser333 [38]
3 years ago
12

High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capa

bility Challenge Exam. Students who score in the top 8 percent are recognized publicly for their achievement by the Department of the Treasury. Assuming a normal distribution, how many standard deviations above the mean does a student have to score to be publicly recognized?Round your answer to 2 decimal places.)
Mathematics
1 answer:
Misha Larkins [42]3 years ago
7 0

Answer:

<u>The correct answer is that a student have to score 1.41 standard deviations above the mean to be publicly recognized.</u>

Step-by-step explanation:

For answering the question, we don't know the score mean of the National Financial Capability Challenge Exam and neither the population or number of students who take the exam. The only information provided is that the public recognition in this normal distribution is only for students that scores in the top 8%. In other words for students above 92% of the population.

With this information, we can go to a Z Score Table and check that for being on the top 8% (above the 92% of any population), your result must be 1.405 standard deviations above the mean.

<u>Rounding the answer to 2 decimal places, it's 1.41 standard deviations above the mean.</u>

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a boy walks along at a constant speed of 3 meters per second for 1 minute. how far does he travel during this time?
Nadusha1986 [10]
The boy walks at a constant speed V=3 m/s where V is his velocity
1 minutes has 60 seconds
Thus we conclude during 1 minute he travels :
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3 years ago
Tickets for a concert are $40 for main-floor seats and $25 for upper level seats. A total of 2000 concert tickets were sold. The
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Step-by-step explanation:

<u>to show how many tickets were sold:</u>

x = upper floor tickets

y = main floor tickets

x + y = 2000

<u>to show total amount of revenue:</u>

25x + 40y = 62,000

<u>Finding answer using both equations:</u>

x + y = 2000

multiply each side by 25

25x + 25y = 2000 × 25

25x + 25y = 50,000

25x + 40y = 62,000

-

25x + 25y = 50,000

-----------------------------------

15y = 12,000

^ this is column subtraction

<em>^ this column subtraction is done to isolate y so we can work with one value rather than 2</em>

15y = 12,000

divide each side by 15

12,000 ÷ 15 = 800

y = 800

x + y = 2000

x + 800 = 2000

x = 1200

Therefore 1200 upper-level tickets were sold

800 main floor tickets were sold

4 0
2 years ago
Picture below<br> ..........................
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Answer:

B) Multiply each side by 3

Step-by-step explanation:

This is how to solve for h

\frac{h}{3}+ 7 = 5           (First Step --> Subtract 7 from both sides)

\frac{h}{3} =  - 2             (Second Step --> Multiply both sides by 3 to cancel out the                                 denominator and to find just h)

h = -6

6 0
3 years ago
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The answer is 40

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so 23x20 which is 460

500-460 is 40

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Answer:

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