1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
VikaD [51]
3 years ago
6

A population of middle school students contains 160 sixth graders, 180 seventh graders, and 140 eighth graders. Nine seventh gra

ders were part of a random sample of the population chosen to participate in a survey. For the sample to accurately represent the population, about how many sixth graders should be chosen?
7

8

14

16
Mathematics
2 answers:
Citrus2011 [14]3 years ago
8 0

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

Number of sixth graders students = 160

Number of seventh graders students = 180

Number of eighth graders students = 140

If 9 seventh graders were part of a random sample of the population chosen to participate in a survey.

Let Number of sixth graders should be chosen be 'x'.

Since there will be direct proportion .

\frac{180}{9}=\frac{160}{x}\\\\20=\frac{160}{x}\\\\x=\frac{160}{20}\\\\x=8

Hence, Second option is correct.

emmainna [20.7K]3 years ago
4 0
The correct answer is 8
You might be interested in
Help please 10 points
xxTIMURxx [149]

Answer:

Step-by-step explanation:

tell me the question ?? did not say the question ok ??

8 0
2 years ago
Giving brainly answer quick noob
olga2289 [7]

Answer:

Ok

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
| Solve the equation. Check your solution.<br> d- 1/12 = 5/12
charle [14.2K]
I think it's 1/2, which is 6/12.

5/12 plus 1/12 equals 6/12. 6 is half of 12, so you one half. I hoped this helped.
5 0
2 years ago
Find the slope of the line that passes through the points (2, -5) and (3, -6)
Alecsey [184]

Answer:

slope is -1

Step-by-step explanation:

slope is

m= (y2-y1) / (x2-x1) = -5+6 /2-3 = 1/-1 = -1

5 0
3 years ago
PLEASE HELP) Given the function ƒ(x) = x and the function g(x) = x – 4, what does the –4 do to the graph of ƒ(x) to get the grap
SOVA2 [1]

Answer:

C. Translates the graph 4 units downwards

Step-by-step explanation:

The -4 is the y-intercept which brings the graph down four units

5 0
2 years ago
Other questions:
  • The sum of three consecutive integers is 9. What is the equation that represents the scenario?
    13·2 answers
  • Angles α and β are the two acute angles in a right triangle. Use the relationship between sine and cosine to find the value of β
    14·1 answer
  • This graph displays a linear function. What is the rate of change?
    5·2 answers
  • When 47 is added to a number the result is 37 less than 7 times the number.
    14·2 answers
  • How do you divide 54,164 by 44 and show your work
    10·1 answer
  • What is the slope for these two points (-4,2) (-4,0)
    5·1 answer
  • Find the product of (7m+8n)(7m−8n)
    14·1 answer
  • SOMEONE PLEASE HELP ME DUE LESS THEN 10 MINUTESS!!!!
    13·2 answers
  • Hi hi hi higigigiigjssjjsskkskskwkw
    9·2 answers
  • Shane walked 3 meters west then turned the corner to walk 4 meters north to get to the library . He is going to walk home on the
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!