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vekshin1
3 years ago
7

what's wrong? In an American Optometric Association survey 1009 adults were randomly selected and asked to identify what they wo

rry most about losing 51% of the respondents chose "vision" What's wrong here?
Mathematics
2 answers:
Aleks [24]3 years ago
7 0
The problem with the question is that 51% of 1009 adults could not have said that their biggest fear was losing vision. The issue with 51% of 1009 is that you wont be left with a whole number, but a decimal instead. You cant have a decimal of a person. 
Leviafan [203]3 years ago
6 0

Answer:

The percent of adults who were worry about losing "vision" can not be 51%.

Step-by-step explanation:

In the given problem it is given that 51% of 1009 adults were worry about losing "vision".

Total number of persons = 1009

51% of 1009 is

1009\times \frac{51}{100}=514.59

It means 514.59 adults were worry about losing "vision", which is incorrect because the number of persons can not be a fraction or decimal value.

Therefore, the percent of adults who were worry about losing "vision" can not be 51%.

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the answer is line A

Step-by-step explanation:

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Step-by-step explanation:

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2 years ago
There are books in a library, there are 4 different kinds of books. Science books make up 3/4 of art books. Comic books are 1/4
Sergeeva-Olga [200]

Answer:

The total number of books is 1020.

Step-by-step explanation:

Denote the books by their first letter.

From the provided information:

  • S=\frac{3}{4}A
  • C=\frac{1}{4}T
  • H=\frac{1}{5}T
  • H = A-80

Compute the expression of <em>T</em> as follows:

H = A-80\\\\\frac{1}{5}T=A-80\\\\T=5A-400...(i)

Compute the value of <em>C</em> in terms of <em>A</em>:

C=\frac{1}{4}T\\\\C=\frac{1}{4}\times {5A-400}\\\\C=\frac{5}{4}A-100...(ii)

Compute the value of <em>A</em> as follows:

Use expressions (i) and (ii):

T=S+C+H+A\\\\5A-400=\frac{3}{4}A+\frac{5}{4}A-100+A-80+A\\\\5A-400=4A-180\\\\A=220

Compute the value of <em>T</em> as follows:

T=5A-80\\\\T=(5\times 220)-80\\\\T=1100-80\\\\T=1020

Thus, the total number of books is 1020.

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Answer:

So, lets say the refridgerator started at 37 degrees F alright?

Step-by-step explanation:

37 - 4 = 33

33 + 2 = 35

35 - 7 = 28

28 - 1 = 27

27 + 3 = 30

30 + 1 = 31

So the final temurature at 2:00pm would be 31 degrees F

Hope this helped :)

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