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lesya692 [45]
3 years ago
12

The scale On a map is 2 cm equals 15 miles is measures the distance to the next town at seven cm how many miles away is the next

town
Mathematics
1 answer:
Ghella [55]3 years ago
4 0

Answer:

2cm = 15 mi

you have to figure out how far 7cm equals, so you would have:

6cm = 45 mi

that leaves 1 cm left, so if 2cm = 15 mi then 1 cm would equal 7.5 mi.

so your distance would be 45 mi + 7.5 mi = 52.5 mi to the next town.

Step-by-step explanation:


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3 0
3 years ago
In the following hypothetical scenarios, classify each of the specified numbers as a parameter or a statistic.
soldi70 [24.7K]

Answer:

Explained below.

Step-by-step explanation:

A parameter is a valuable element of statistical analysis. It denotes the characteristics that are used to define a given population. It is used to define a particular attribute of the population. For instance, population mean, population standard deviation, population proportion and so on.

While making a statistical conclusion about the population under study, the parameter value is unknown. This is because it would not be possible to gather data from every single member of the population. So a sample is selected from the population to derive a conclusion about the parameter.

A statistic is the value of the characteristics that are computed using this sample. For instance, sample mean, sample standard deviation, sample proportion and so on.

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There have been 44 Presidents of the United States, and 36% of them were Democrats. The 36% here is a <u>parameter</u>.

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In a 2015 Gallup poll of 1025 adults living in the United States, 53% said they trust the judicial branch of the federal government. The 53% here is a <u>statistic</u>.

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The 72 employees at ABC company have a mean income of $52,317 with a standard deviation of $36,829. The $36,829 is a <u>parameter</u>.

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4 0
3 years ago
Which system of equation should you use to solve this problem
Alex17521 [72]

Last option is the correct answer.

Step-by-step explanation:

Given that

Let x stand for the solution a and y stand for the solution B

So,

According to statement that

30 gallons have to be made

x+y=30

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Solution B contains 53 percent  =>0.53y

And the mixture of 30 gallons contains 45% bromine

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Hence,

Last option is the correct answer.

Keywords: Equations, Variables

Learn more about linear equations at:

  • brainly.com/question/10941043
  • brainly.com/question/10978510

#LearnwithBrainly

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