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Ierofanga [76]
3 years ago
6

At Brighton Middle School, Mr. Yule asked 50 randomly selected students from each grade level about their favorite subject, and

12 chose science. He used this data to draw the inference that about 25% of middle school students will indicate science is their favorite subject. If there are 200 students all together, did he make a reasonable inference?
Mathematics
2 answers:
Andrew [12]3 years ago
8 0

Answer:

The fourth option

"Yes, Mr. yule's sample is random and representative of the population."

bogdanovich [222]3 years ago
4 0
Yes he made a reasonable inference
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If p∥q, m∠2=5b+1, and m∠12=6b−8, find m∠1 and m∠3.
lesya [120]

Answer:

jj

Step-by-step explanation:

32

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7 0
3 years ago
Write 75% as a decimal and fraction in simplest form.<br> SHOW ALL WORK.
Andrews [41]
75% means 75 per cent, or per hundred.
"Per cent" means "per hundred" or "0.01".
This means that 75% is 0.75 in decimal form.
75% as a fraction means 75 per hundred.
Keep in mind that "per" means to divide.
So, let's translate this into parenthesis.
75 (75) per (/) hundred (100).
Rewrite with only the parenthesis.
75 / 100.
This is 75% in fraction form, but isn't simplified. We can divide both numbers by 25.
75 / 25 = 3
100 / 25 = 4
Your simplified fraction is 3/4.

I hope this helps!
7 0
4 years ago
3(0)+2y=1. Help plzzz
vladimir1956 [14]

Answer:

y=.5 or y=1/2

Step-by-step explanation:

3(0)+2y=1

3 x 0 = 0

0 + 2y = 1

2y = 1

Divide by 2

y=.5 or y=1/2

5 0
3 years ago
X = 3y - 6 2x - 4y = 8 Solve the system of equations using substitution.
Brut [27]
Hello

x = 3y - 6
2x - 4y = 8
We need to start by solving 3y - 6 for x
Substitute 3y -6 for x in 2x
2x - 4y = 8
2(3y - 6) - 4y = 8
2y - 12 = 8
2y = 8 + 12
2y = 20
Divide both sides by 2
2y/2 = 20/2
y = 10

Now, substitute 10 for y in x= 3y
x = 3y - 6
x = 3(10) - 6
x = 30 - 6
x= 24

Answer : x = 24 and y=10

I hope this help!
7 0
3 years ago
Read 2 more answers
Using the slope​ formula, find the slope of the line through the given points.
UNO [17]

Answer:

0

Step-by-step explanation:

Slope = (y2-y1)/(x2-x1)

  = (-5--5)/ (9--8)

 = (-5+5)/(9+8)

 = 0/17

=0

The slope it 0

This is a horizontal line because the y value doesn't change.  If the y value doesn't change, the slope it zero.

4 0
3 years ago
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