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Flura [38]
3 years ago
11

Charles wants to find out if the students in foreign language classes spend more time in class speaking in English or in the for

eign
language they are studying. Charles first gets class lists of all students taking foreign language classes. He then chooses 10
students from each different language class to survey. Which best explains why the sample he chose may not be a
representative sample?
The sample size is not large enough to represent the population.
The sample was not chosen at random.
The way the sample was chosen may overrepresent or underrepresent students taking certain language classes.
The way the sample was chosen does not sample students from each different language class.​
Mathematics
1 answer:
Ganezh [65]3 years ago
6 0

Answer:

English always in class

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amid [387]

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Decimal expansion of 1/5 = 0.2

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Read 2 more answers
I need this urgently!! I need by 7:15!!
Sati [7]

The question is telling you that the length of the rectangle is 3 metres more than twice the width.

So let:

<em>w= width</em>

<em>L= length</em>

Because the length is 3 metres more than twice<em> </em>the width: <em>L= </em><em>2</em><em>w+</em><em>3</em>


They also tell you the perimeter is 48 metres.

<em>P= L+L+w+w</em>

So the equation of the perimeter is:

<em>48= (2w+3)+(2w+3)+2w +2w</em>

<em>48= 2(2w+3) + 4w</em>


To find w, expand and simplify.

<em>48= 4w+6+4w</em>

<em>48= 8w + 6</em>

<em>42= 8w</em>

<em>5.25=w</em>


Now that you know the width, plug in the value into the length equation:

<em>L= 2w+3</em>

<em>L=2(5.25)+3</em>

<em>L=10.50+3</em>

<em>L=13.5</em>


If I am wrong let me know! I hope this helps.

6 0
3 years ago
Please answer this for me correctly. THANK YOU!!
Leona [35]

Answer:

45

Hope this helps!

5 0
2 years ago
Find the perimeter. Simplify your answer.
labwork [276]

Answer:

26s +24

Step-by-step explanation:

The perimeter is the total length of all its sides.

Perimeter

= 10s +3 +3s +9 +10s +3 +3s +9

= 10s +3s +10s +3s +3 +9 +3 +9

= 26s + 24

7 0
3 years ago
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