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lara31 [8.8K]
2 years ago
13

In a survey at a local university, 45% of students say that they get less than the recommended eight hours of sleep per night. I

n a group of 2300 students, how many would you expect get eight or more hours of sleep per night?
Mathematics
1 answer:
vlabodo [156]2 years ago
3 0

Answer: In a survey at a local university, 37% of students say that they get less than the recommended eight hours of sleep per night. In a group of 2200 students, how many would you expect get eight or more hours of sleep per night?

Please help ASAP!

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Answer by macston (5194) About Me  (Show Source):

You can put this solution on YOUR website!

If 37% get less than 8 hours of sleep, 100%-37%=63%

63% get 8 hours or more per night:

(0.63)(2200)=1386

ANSWER: You would expect 1386 to get 8 or more hours of sleep per night.

   This is an equation! Solutions: x=1.

   Graphical form: Equation 3%2Ax-x%2B2=4 was fully solved.

   Text form: 3*x-x+2=4 simplifies to 0=0

   Cartoon (animation) form: simplify_cartoon%28+3%2Ax-x%2B2=4+%29

   For tutors: simplify_cartoon( 3*x-x+2=4 )

   If you have a website, here's a link to this solution.

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At the city museum, child admission is $5.20 and adult admission is $9.50. On Friday,133 tickets were sold for a total sales of
fredd [130]

Answer:

55 adult tickets were sold on Friday.

Step-by-step explanation:

A linear system will be used to model the system.

Let c be the number of child tickets and a be the number of adult tickets

Then according to given statements

a+c = 133\ \ \ \ Eqn\ 1\\9.50a+5.20c = 928.10\ \ \ Eqn\ 2

From equation 1

a = 133-c

Putting this in equation 2

9.50(133-c)+5.20c = 928.10\\1263.5-9.50c+5.20c=928.10\\1263.5-4.3c = 928.10\\-4.3c = 928.10-1263.5\\-4.3c=-335.4\\\frac{-4.3c}{-4.3} = \frac{-335.4}{-4.3}\\c = 78

Putting c = 78 in equation 1

a+78 = 133\\a = 133-78\\a = 55

Hence,

55 adult tickets were sold on Friday.

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2 years ago
Help please! I'll give a brainliest for the best and the correct answer loves!
Fofino [41]
15x10=150
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3 years ago
I really don't understand this I need help
Salsk061 [2.6K]
In looking at it I would guess it is asking which of the points is on the line? To answer that you would have to take each point an plug it into the equation and see if it is true.

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C(3,2)
3(3) - 7 = 2
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I hope this helps
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2 years ago
What is the standard form of 1.46e-6
GalinKa [24]
Standard form would be 1.46e-6 because the variable has one degree and the number 6 does not have a degree.
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3 years ago
The board of directors of a company knows that the probability that carbon emissions from the company’s factory exceed the permi
jekas [21]

the real answer is D.  0.9132

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2 years ago
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