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lesantik [10]
2 years ago
6

The distribution of the amount of money spent by students on textbooks in a semester is approximately normal in shape with a mea

n of 358 and a standard deviation of 37.According to the standard deviation rule, approximately 68% of the students spent between $ and $ on textbooks in a semester.
Mathematics
1 answer:
Mnenie [13.5K]2 years ago
7 0

Answer:

I'm sorry I don't know

Step-by-step explanation:

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30 is 60%of what number?
Rom4ik [11]

Answer: 50


Step-by-step explanation:


Step 1: 60% = .60

Step 2: 30 = .60Y

Step 3: Divide both sides of the equation by .30 to isolate the variable Y.

30/.60 = .60/.60Y

50=Y

Therefore, 30 is 60% of 50.

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The sum of two consecutive odd integers is 32 what are the two integers
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15 and 17 is the answer
6 0
3 years ago
pet store inc found that they were selling more guinea pigs and fewer birds. in 2010, they had 42 birds in stock, and in 2011, t
navik [9.2K]
Answer=19.05% decrease 

    42 birds          34 birds
___________=__________
 100percent        x percent

cross multiply
42x=3400
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x=80.95 percent

The inventory in 2011 is 80.95% the inventory in 2010

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6 0
3 years ago
Read 2 more answers
Help please thank you!
Dmitry_Shevchenko [17]

Answer:

g(f(x)) = x

Yes, the functions are inverses.

Step-by-step explanation:

Hi there!

We're given:

f(x) = 8x-7

g(x)=\displaystyle\frac{x+7}{8}

To solve for g(f(x)), plug f(x) into g(x) as x:

g(f(x))=\displaystyle\frac{(8x-7)+7}{8}\\\\g(f(x))=\displaystyle\frac{8x-7+7}{8}\\\\g(f(x))=\displaystyle\frac{8x}{8}\\\\g(f(x))=x

Because g(f(x)) = x, the two functions are inverses.

I hope this helps!

6 0
2 years ago
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