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Hatshy [7]
3 years ago
14

074 PLS

Mathematics
1 answer:
Arte-miy333 [17]3 years ago
7 0

Answer:

31% of the surveyed voters said they would vote for Brown.

Step-by-step explanation:

A sample statistic is a a statistical measure computed from a sample taken from the population. The sample statistic is used to estimate the unknown value of the population parameter.

For example, sample mean (\bar x) is used estimate the population mean (\mu), sample proportion (\hat p) is used to estimate the population proportion (p).

A sample of size <em>n</em> = 350 registered voters are selected.

Of these 350 voters 108 said they would vote for Brown, 217 said they would vote for Feliz, and 25  were undecided.

The sample proportion of voters who would vote for Brown is:

\hat p=\frac{108}{350}= 0.3086\approx0.31

Thus, the sample statistic for the percentage of voters surveyed who said they would vote for Brown is 31%.

According to the sample proportion the estimated percentage of voters who would vote for Brown is 31%. This implies that Brown might loose the election.

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DENIUS [597]
Let s represent the number of sales, and t the total pay
the equation to represent this situation is t = 2s + 50
so set t to 100, and solve for s

100 = 2s + 50
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5 0
4 years ago
Which choice shows the result of substituting 3x – 5 into the second equation for y?
ahrayia [7]

Answer:  The answer is (B) 2x + 3(3x – 5) = 51 .

Step-by-step explanation:  We are given three options and we are to select which choice shows the result of substituting 3x – 5 into the second equation for y.

So, y = 3x - 5.

Since the standard form of a linear equation i two variables is ax + by = c, so the second equation as given in the options must be of the form 2x + 3y = 51.

If we substitute y = 3x - 5, then this equation becomes

2x + 3(3x - 5) = 51.

Thus, (B) 2x + 3(3x – 5) = 51  is the correct option.

5 0
3 years ago
Read 2 more answers
There are two numbers whose sum is 53. Three times the smaller number is equal to 19 more than the larger number. What are the n
julsineya [31]

18 and 35. The numbers whose sum 53 are 18 and 35.

The key to solve this problem is using a system of equations.

There are two numbers whose sum is 53. This number can be represented as x and y. So:

x + y = 53

Three times the smaller number is equal to 19 more than the larger. Let's set x as the smaller number and y the larger number. So:

3x = 19 + y

Clear y in both equations and let's use the equalization method to solve for x:

y = 53 - x and y = 3x - 19

Then,

53 - x = 3x - 19

53 + 19 = 3x + x ---------> 3x + x = 53 + 19 -------> 4x = 72

x = 72/4 = 18

To find y, let's substitute x = 18 in the equation x + y = 53

18 + y = 53 --------> y = 53 - 18

y = 35

6 0
3 years ago
Which type of question is most useful in a group discussion?
polet [3.4K]

Answer:

B

Step-by-step explanation:

it is B I am so sorry if it is wrong

3 0
2 years ago
Use the quadratic formula to find the solutions to the equation.<br> 3x2 - 10x + 5 = 0
Nitella [24]

Answer: A

Step-by-step explanation:

3x² - 10x + 5 = 0

a = 3      b = -10     c = 5

Δ = b²- 4ac = 100 - 4.3.5 = 40 > 0 => have 2 solutions

=> x = \frac{10+\sqrt{40} }{6} or x = \frac{10-\sqrt{40} }{6}

3 0
3 years ago
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