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
nataly862011 [7]
2 years ago
14

A survey of students' favorite sports was taken from a random sample of

Mathematics
1 answer:
White raven [17]2 years ago
6 0

Answer:

129

Step-by-step explanation:

Considering the survey to be representative, you can simply multiply the share of students <em>p</em> preferring “Track & Field” with the whole school population at the same time to estimate the number of such students in the whole school.

First we need to find the relative share <em>p</em> of such answers in the study by dividing it by the sum of answers, assuming that the table is complete for that random sample:

<em>p</em> = 4/(8 + 5 + 4) = 4/17

Then for the whole school we get 550 <em>p</em> ≈ 129.4

You might be interested in
800 building blocks is 10 times as much as 80 _____ blocks.
earnstyle [38]

In this number 800 is 10 times as much as what number. To answer the query we can illustrate this problem into a mathematical equation of

1.  10 x N = 800

2.   10N = 800

3.   N = 800/10

4.   N = 80

the answer is 80.

Hope this helps!

6 0
2 years ago
Read 2 more answers
Suppose that a company has recently started manufacturing a new line of​ helicopters, and it took 106.496 labor days to complete
Allisa [31]

A "learning rate" expresses the ratio of the labor spent on the n-th item to that spent on the (n/2)-th item. That is, the 8th helicopter manufactured took days related by ...

0.8 × (days for 8th) = (days for 16th)

(days for 8th) = (days for 16th)/0.8 = 1.25×(days for 16th)

Then the days for the 4th are 1.25 times that, and the days for the 2nd are 1.25 times the days for the 4th. The days for the first helicopter will be

... 1.25⁴×106.496 days = 260 days

The appropriate choice is

... d. 260

5 0
2 years ago
1 – 7k + 3k 2 + 10k + 7 – 5k 2
Katyanochek1 [597]

1) The variables are "k"

2) There are 4 terms

3) The coefficients are k

4) The constants are -7, 3, 10, -5

5) The like terms is -7k, 3k, 10k, -5k

The answers are pretty direct but, hope this answers your question.

Have a great day/night!

8 0
2 years ago
Read 2 more answers
Equation of a line through (-1,-10) which is parallel to the line y=4x+3 has (need the slope and y intercept ) please help
valina [46]
Parallel lines have the same slope but different y intercepts

Slope: 4
y=4x+b
this is the new equation, plug in the point
-10=4(-1)+B
-10=-4+B
add 4
-6=B

Y intercept= -6
slope; 4
8 0
3 years ago
Tell me 3 mathematical things that you know in relation to geometry
sweet [91]

Answer:

Dilations which reduce or enlarge an object. Translations which move the object from one part on the graph to another. I have also learned about how to construct a perpendicular bisector.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • When multiplying a particular number by 60 on his calculator John got an answer of 900. What was the number
    6·2 answers
  • Figure A is a scale image of figure B Figure A maps to figure B with a scale factor of 4/9 What is the value of x?
    13·2 answers
  • George weighed 180 pounds in January. Now he weighs 150 pounds? What percent has he lost?
    11·1 answer
  • Find the slope of the line that passes through (-2,-3) and (1,1).
    5·2 answers
  • Is - 0.1 or -2/3 greater
    12·1 answer
  • Please help find the answer below.
    12·1 answer
  • 1)A bag contains seven red marbles and seven
    12·1 answer
  • Subtract the following expression (12x+6)-(5x+2)​
    14·1 answer
  • Pls help me answer this​
    8·1 answer
  • 1. A(–6 , 2) , B(4 ,7) are endpoints of a line segment.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!