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
Leokris [45]
3 years ago
8

Lucy collects data from a random sample of seventh-graders. Out of 40 respondents, 7 attend after-school programs. Of the 200 se

venth-graders attending Lucy’s school, how many would be expected to attend afterschool programs?
Mathematics
1 answer:
Shalnov [3]3 years ago
8 0

Answer:

35

Step-by-step explanation:

For every 40 students, you add 7

Ratio:

Students : Students in afterschool programs

40:7

80:14

120:21

160:28

200:35

You might be interested in
Garvin bought skis that cost $500 at the new store opening. The store gave him 60 days free credit. However, if he does not pay
Dahasolnce [82]

Answer:

If he lets the account go for 90 days, he will

pay an interest of $60

Step-by-step explanation:

Here, we want to calculate the interest Garvin will pay if he lets the account go for 90 days

Since 90 days is greater than 60 days, this means that he is going to pay a 12% annual interest rate

Thus, mathematically , the amount to pay will be;

12% of $500

= 12/100 * 500 = 6000/100 = $60

3 0
3 years ago
Which are undefined?
Ghella [55]

Step-by-step explanation:

I just have a tip to help.

\frac{0}{k} = Ok

\frac{N}{0}=No

If you divide something by zero, (x/0) the answer will be undefined

If you divide zero by something, (0/x) the answer will be zero.

Hope that helped! :D

6 0
4 years ago
Read 2 more answers
Here Is My Last Question I Took A Snip Of 30 Points
coldgirl [10]

Answer:

u did change it

7 0
3 years ago
The mean caloric intake of an adult male is 2800 with a standard deviation of 115. To verify this information, a sample of 25 me
erma4kov [3.2K]

Answer:

Step-by-step explanation:

We would use the t- distribution.

From the information given,

Mean, μ = 2950

Standard deviation, σ = 115

number of sample, n = 25

Degree of freedom, (df) = 25 - 1 = 24

Alpha level,α = (1 - confidence level)/2

α = (1 - 0.98)/2 = 0.01

We will look at the t distribution table for values corresponding to (df) = 24 and α = 0.01

The corresponding z score is 2.492

We will apply the formula

Confidence interval

= mean ± z ×standard deviation/√n

It becomes

2950 ± 2.492 × 115/√25

= 2950 ± 2.492 × 23

= 2950 ± 57.316

The lower end of the confidence interval is 2950 - 57.316 =2892.68

The upper end of the confidence interval is 2950 + 57.316 = 3007.32

The solution is correct.

8 0
3 years ago
A school library charges a fine of 5 cents on the first day a book is overdue, then doubles the amount owed each day until payme
andrey2020 [161]

Answer:

Jada's book was overdue by 1 more day than Juan's book.

...................

6 0
3 years ago
Other questions:
  • A hinged lid opens 89 degrees. What type of angle is formed by the open lid?
    12·1 answer
  • How do I find the area of a trapezoid?
    10·2 answers
  • Which relations are functions? Select Function or Not a function for each graph.
    6·2 answers
  • What number times 100 equals 1
    11·1 answer
  • The x- intercepts of a parabola are (0,-6) and (0,4). The parabola crosses the y- axis at -120. Lucas said that an equation for
    15·1 answer
  • Name all the quadrilaterals that have the given property.
    13·2 answers
  • Pls help me solve pls show how you got the answer
    15·1 answer
  • The graph of the following systems of equations is ____.
    12·1 answer
  • Convert the angle - 3 radians to degrees, rounding to the nearest 10th.
    13·1 answer
  • Please answer the question in the picture <br><br> Will mark brainliest
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!