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kotegsom [21]
3 years ago
7

an adult ticket cost 20 dollars a piece for2 adults and 10 a piece for 4 children how much will cost for everyone

Mathematics
2 answers:
Korolek [52]3 years ago
8 0
It will be  80  dollars in all  for everyone

10x4=40
20x2=40
40+40=80
Delicious77 [7]3 years ago
4 0
80 dollars for all of them.  
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A recent survey based on a random sample of n=470 voters, predicted that independent candidate for the mayoral election will get
julsineya [31]

I have an expression

\sigma = \sqrt{p(1-p)/n}

floating around in my head; let's see if it makes sense.

The variance of binary valued random variable b that comes up 1 with probability p (so has mean p) is

E( (b-p)^2 ) =  (-p)^2(1-p) + (1-p)^2p = p(1-p)

That's for an individual sample. For the observed average we divide by n, and for the standard deviation we take the square root:

\sigma = \sqrt{p(1-p)/n}

Plugging in the numbers,

\sigma = \sqrt{.24(1-.24)/490} = 0.019 = 1.9\%

One standard deviation of the average is almost 2% so a 27% outcome was 3/1.9 = 1.6 standard deviations from the mean, corresponding to a two sided probability of a bit bigger than 10% of happening by chance.

So this is borderline suspect; most surveys will include a two sigma margin of error, say plus or minus 4 percent here, and the results were within those bounds.

7 0
3 years ago
-3(x – 14) + 9x = 6x + 4<br>​
8090 [49]

Answer:

there are no solutions :3

no this is not a joke sjsjsj there are equations who has an answer and ones that are impossible to have a solution. use the no solution sign when you answer it or sum

Step-by-step explanation:

6 0
3 years ago
What is 75% as a fraction in simplest form
natulia [17]
75% = 75/100÷ 5= 15/20 ÷5= ¾.
3 0
3 years ago
The formula for the volume of a pyramid is =13ℎ
victus00 [196]

Answer:

h = V3B

Step-by-step explanation:

V = 1/3B · h

Divide volume by 1/3 B to get h by itself

V/1/3B = V3B

6 0
3 years ago
explain why the function f(x)= 5x-15/x-3 is not asymptotic to the line x=3. sketch the graph of this function.
Katyanochek1 [597]
X=3 is a vertical line . The question is "Is this line a vertical asymptotefor the function f(x)?". Vertical asymptote is vertical line near which the function grows without bound.
The function f(x)=5x-15/x-3 is not asymptotic to the line x=3, because for x=3 f(x)=5*3-15/3-3=0/0=0 . So, there is a value for x=3 and the function f(x) does not grow near x=3 without bound.

3 0
3 years ago
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