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vekshin1
3 years ago
15

researchers are conducting a survey about what brand of ice cream shoppers prefer. they survey the tenth person who walks into t

he store and then every fifth person after that. this type of sampling is called__________
Mathematics
2 answers:
MrMuchimi3 years ago
7 0

Answer:

<em>systematic</em> random sampling


RoseWind [281]3 years ago
6 0
The store is conducting random sampling.
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Clarissa (the surveyor from our book) is at home and needs to figure out how tall her wall is in order to replace one of the lig
Vikentia [17]

Answer:

  • 18 feet

Step-by-step explanation:

As per the diagram, the triangles on the left and right are similar.

<u>The ratio of corresponding sides is equal:</u>

  • 27/9 = x/6
  • x = 6*3
  • x = 18

The height of the wall is 18 feet

3 0
3 years ago
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Four times a number added to 3 times a larger number is 31. Seven subtracted from the larger number is equal to twice the smalle
Rus_ich [418]

Answer:

y = negative four-thirds x + StartFraction 31 Over 3 EndFraction

y = 2 x + 7

Step-by-step explanation:

Let x represent the smaller number and y represent the larger number.

<h2><u /></h2><h2><u>Part 1</u></h2>

Four times a number added to 3 times a larger number is 31.

<u>It is translated as:</u>

  • 4x + 3y = 31

<u>Then, solving for y:</u>

  • 4x + 3y=31 ⇒ 3y= -4x+31 ⇒ y= (-4x+31)/3 = - 4/3x + 31/3

    ⇒  y= - 4/3x + 31/3

<u>Correct answer choice for this equation:</u>

y = negative four-thirds x + StartFraction 31 Over 3 EndFraction

<h2><u>Part 2 </u></h2>

Seven subtracted from the larger number is equal to twice the smaller number.

<u>It is translated as:</u>

  • y-7= 2x

<u>Then, solving for y:</u>

  • y-7= 2x ⇒ y= 2x+ 7

<u>Correct answer choice for this equation:</u>

y = 2 x + 7

4 0
2 years ago
Write an equivalent fraction for each whole number
Darina [25.2K]
You write each fraction that is equivalent to a whole number like this 2/1, 3/1, 4/1 as 2 over 1 or 3 over 1 or 4 over 1
7 0
3 years ago
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10 POINTS PLEASE HELP ASAP What set of transformations is performed on ABCD to form A′B′C′D′?
Andre45 [30]
It's A I'm pretty sure
6 0
3 years ago
Ms. MacArthur surveyed students to find the amount of time they spent reading and watching TV last week. The scatter plot below
ivann1987 [24]

Answer:

No, because James has confused the hours of watching tv with the hours of reading.

Step-by-step explanation:

This is incorrect. According to the graph, what we have is a point on the line at (6, 10), which implies that a student who reads for 6 hours will watch tv for 10 hours.

It is very likely that James is confusing the hours of watching tv with the hours of reading.

4 0
3 years ago
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