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DochEvi [55]
3 years ago
12

An advertising firm plans to have a sample of individuals view a commercial on a ‘‘sunscreen pill” that one can swallow to provi

de mild SPF protection throughout the day. After viewing the commercial, each individual will be asked if he/she would consider buying the product. How many individuals should the firm sample to estimate the proportion who would consider buying the product to within a margin of error +-3% with 90% confidence?
Mathematics
1 answer:
AleksandrR [38]3 years ago
3 0
Tkejebb rn e. E. R r. R r hejejebenjebebenenbr
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Write 85% as it's fraction, as simply as possible​
cricket20 [7]

Hey ! there

Answer:

  • Simplest fraction form of 85% is <u>1</u><u>7</u><u>/</u><u>2</u><u>0</u><u> </u><u>.</u>

Step-by-step explanation:

Question says that we have to write the <u>simplest</u><u> </u><u>form </u><u>of </u><u>8</u><u>5</u><u>%</u><u> </u><u>as </u><u>it's </u><u>fraction</u><u> </u><u>.</u>

<u>Solution </u><u>:</u><u> </u><u>-</u>

\quad \longrightarrow  \qquad \:85\%

We know that ,

  • Percent ( % ) = <u>1</u><u>/</u><u>100</u>

So ,

\quad \longrightarrow  \qquad \: 85 \times \dfrac{1}{100} \:

or ,

\quad \longrightarrow  \qquad \: \dfrac{85}{100}

Reducing the fraction by cancelling it by 5 :

\quad \longrightarrow  \qquad \: \dfrac{ \cancel{85}}{ \cancel{100}}

We get :

\quad \longrightarrow  \qquad \:      \pink{\underline{\boxed{\frak{\dfrac{17}{20} }}}} \quad \bigstar

Now , we can't reduce 17/20 .

  • <u>Henceforth</u><u> </u><u>,</u><u> </u><u>1</u><u>7</u><u>/</u><u>2</u><u>0</u><u> </u><u>is </u><u>the </u><u>simplest</u><u> </u><u>form </u><u>of </u><u>8</u><u>5</u><u>%</u><u> </u><u>.</u>

<h2><u>#</u><u>K</u><u>e</u><u>e</u><u>p</u><u> </u><u>Learning</u></h2>
4 0
2 years ago
Read 2 more answers
A recording studio charges musicians an initial fee of $50 to record an album. Studio time costs an additional $75 per hour. Wri
elena-s [515]

Answer:

C=$50+$75×T

Step-by-step explanation:

$50 is the amount charged to record an album + 75 amount charged per hour ×T which is how much hours you are going to record an audio.

3 0
3 years ago
The sqaure root of 1/5 of a number is 5. find the number
Mamont248 [21]

Answer:

25

Step-by-step explanation:

The number that we are trying to discover was divided by 5, which gave you the number of 5. To find the original number multiply 5 by 5. I hope this helps.

5 0
3 years ago
Please help!!! I need anybody help who knows the answer.
Tpy6a [65]

Your answer should be C sorry if i'm wrong, hope it helps tho

4 0
3 years ago
The perimeter of a bedroom is 88 feet. The ratio of the width to the length is 5:6. What are the dimensions of the bedroom?
Elza [17]

Answer:

20 feet wide, 24 feet long

Step-by-step explanation:

Let x - width, y - length.

The perimeter is given by the formula:

P = 2*(width + length) or using x, y

P = 2*(x + y) = 88

x + y = 44

And we know that the ratio between the sides is 5/6:

x/y = 5/6. x is on top because the length is bigger than the width

x = 5y/6

Plug this in the first expression:

y + 5y/6 = 44. Muliply by 6

6y + 5y = 264

11y = 264

y = 264/11 = 24.

So x = 5(24)/6  = 20

7 0
3 years ago
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