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
yKpoI14uk [10]
3 years ago
10

Question 1 (1 point)

Mathematics
2 answers:
balandron [24]3 years ago
7 0
It should be 15 because 30% of 50 is 15
Ilya [14]3 years ago
6 0

Answer:

B-5

Step-by-step explanation:

because if u subtract 15 and10 from 30 u will get 5

You might be interested in
5/6÷5=___<br><br>3/7÷6=___<br><br>5/8÷8=___<br><br>15/8÷5​=___
alexandr1967 [171]

Answer:

1/6

1/14

5/64

3/8

Step-by-step explanation:

Easiest and fastest way to evaluate these is to plug it into a calc.

7 0
3 years ago
The total cost for tuition plus room and board at State University is 6,584
Lena [83]

Answer:

$4,194

Step-by-step explanation:

First, you need to subtract the 1,804 from the the total, which will give you 4,780. Divide this by two to get the cost of room and board, which is 2390. To find the tuition fee, add 2,390 and 1,804, and that equals $4,194.

6 0
3 years ago
A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

<h3>What is Standard error?</h3>

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

3 0
2 years ago
A certain fraction is greater than 2. The denominator is 8. What must be true about the numerator?
Volgvan

Answer:

The numerator must be greater than 16

Step-by-step explanation:

We are told that a certain fraction is greater than 2. Thus, if the numerator and denominator are x and y respectively, then we have;

x/y > 2

We are further told that the denominator is 8.

Thus;

x/8 > 2

Multiply both sides by 8 to give;

x > 16

Thus,the numerator must be greater than 16.

5 0
3 years ago
Combine like terms. 8x-x
Lelu [443]
[tex]8x - x \\ 8 (0)


hope this help
brainliest plz
4 0
3 years ago
Read 2 more answers
Other questions:
  • Help plz !!!!!!!!!!!!!!!!!!!!!!!!!!
    7·1 answer
  • Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate.
    11·2 answers
  • Two batches of soup will serve 8 people. Lonnie needs to make enough soup for 120 people. If the recipe calls for 2 onions for o
    6·2 answers
  • Can you help me understand this question? And what are they looking for? I really need help please...
    13·1 answer
  • What information is missing but is needed to solve this problem? The Jackson family took a three-day trip. They drove 426 miles
    10·2 answers
  • A CD player is on sale for $90 at an electronics store. If the original price was $125, what was the percent of discount
    6·1 answer
  • Help please on both please
    15·1 answer
  • What is the difference between -120 and 400?
    7·1 answer
  • HELP ME PLEASE I'M BEING TIMED AND I DON'T WANT TO FAIL!!!! :(
    10·1 answer
  • To original: 160<br> new: 136
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!