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katrin2010 [14]
2 years ago
8

A researcher wishes to be 95 confident that her estimate of the true proportion

Mathematics
1 answer:
marysya [2.9K]2 years ago
4 0
The answer would be 95/100 = 0/100 I hope this helped ^^
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ILL MARK BRAINLIST
Mkey [24]

Answer:

vertical angles

Step-by-step explanation:

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3 years ago
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PLS HELP!! ALGEBRA!!
sineoko [7]

Horizontal distance = 48'

difference in elevation = 18"-6" = 12" = 1'

Slope of the sewer line = rise/run = 1/48 = 0.0208 = 2.08%

6 0
2 years ago
PLEASE HELP AND SHOW WORK!!
Nastasia [14]

Answer:

Pipe 1 alone fills a tank in 10 min

Pipe 2 alone fills the tank in 20 min

If both are turned on together, how long will it take to fill the tank???

Pipe 1 fills at the RATE of 1/10th tank per min

Pipe 2 fills at the RATE of 1/20th tank per min

Pipe 1 + Pipe 2 fills at the rate of 1/10+1/20 or 3/20th tank per min

Let x= time to fill the tank

(3/20)(x)=1 Where 1 denotes a full tank (Multiply both sides by 20)

3x=20

x=6 2/3 min----------both working together

NOW YOUR PROBLEM

Let x= amount of time for smaller pipe to fill the tank

Then (x-5)=amount of time for larger pipe to fill the tank

NOW HERE'S WHERE THE RECIPROCAL COMES IN:

The smaller pipe fills the tank at the RATE of 1/x cu units per min

The larger tank fills the tank at the RATE of 1/(x-5) cu units per min

Together, they fill the tank at the rate of 1/x+(1/(x-5)) cu units per min

But now we are told that together the fill the tank in 11 1/9 minutes. so our equation to solve is:

(1/x+(1/(x-5))(11 1/9)=1 where 1 denotes a full tank. In fact, in each of the above reciprocals, the 1 denotes a full tank.

So, dividing both sides by 11 1/9, we get:

1/x+(1/(x-5)=1/(11 1/9)-------------- which is your equation

I assume that you have no problems solviing this eq.

Hope this helps----ptaylor

Step-by-step explanation:

7 0
2 years ago
What is the solution to the equation below? 4x = ⅔
Nataly [62]

Step-by-step explanation:

we divide both sides by 4 to single out the X

(4X) / 4 = (2/3)/4

simplify

X = 2/12

4 0
3 years ago
Write 59.5% as a decimal.<br> *<br> Your answer
Komok [63]

Answer:

0.0325

Step-by-step explanation:

3.25% = 3.25 over 100 or,

3.25%=3.25100

3.25 over 100 is the same as 3.25 divided by 100. Completing the division we get:

3.25 ÷ 100 = 0.0325

Therefore, we have shown that

3.25% = 0.0325

6 0
3 years ago
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