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erik [133]
3 years ago
11

a teacher gave a quiz to her class of 30 students. however, after collecting the quizzes, she misplaced one of them. prior to mi

splacing the test, the teacher calculated the mean of the 30 quizzes to be μ = 68 points. the teacher calculates the mean of the remaining 29 quizzes to be μ = 67 points. what is the score of the missing quiz?
SAT
1 answer:
Tasya [4]3 years ago
8 0

Answer:

the answer is 98

the mean for all 30 students is 69

Explanation:

i hope this helps you !!!! :)

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Let see if you know long division 3) 461​
WARRIOR [948]

Answer:

461 = dividend

3 = divisor

Explanation:

Step 1:

Start by setting it up with the divisor 3 on the left side and the dividend 461 on the right side like this:

           

   3 ⟌ 4 6 1

Step 2:

The divisor (3) goes into the first digit of the dividend (4), 1 time(s). Therefore, put 1 on top:

       1    

   3 ⟌ 4 6 1

Step 3:

Multiply the divisor by the result in the previous step (3 x 1 = 3) and write that answer below the dividend.

       1    

   3 ⟌ 4 6 1

      3    

Step 4:

Subtract the result in the previous step from the first digit of the dividend (4 - 3 = 1) and write the answer below.

       1    

   3 ⟌ 4 6 1

     - 3    

       1    

Step 5:

Move down the 2nd digit of the dividend (6) like this:

       1    

   3 ⟌ 4 6 1

     - 3    

       1 6  

Step 6:

The divisor (3) goes into the bottom number (16), 5 time(s). Therefore, put 5 on top:

       1 5  

   3 ⟌ 4 6 1

     - 3    

       1 6  

Step 7:

Multiply the divisor by the result in the previous step (3 x 5 = 15) and write that answer at the bottom:

       1 5  

   3 ⟌ 4 6 1

     - 3    

       1 6  

       1 5  

Step 8:

Subtract the result in the previous step from the number written above it. (16 - 15 = 1) and write the answer at the bottom.

       1 5  

   3 ⟌ 4 6 1

     - 3    

       1 6  

     - 1 5  

         1  

Step 9:

Move down the last digit of the dividend (1) like this:

       1 5  

   3 ⟌ 4 6 1

     - 3    

       1 6  

     - 1 5  

         1 1

Step 10:

The divisor (3) goes into the bottom number (11), 3 time(s). Therefore put 3 on top:

       1 5 3

   3 ⟌ 4 6 1

     - 3    

       1 6  

     - 1 5  

         1 1

Step 11:

Multiply the divisor by the result in the previous step (3 x 3 = 9) and write the answer at the bottom:

       1 5 3

   3 ⟌ 4 6 1

     - 3    

       1 6  

     - 1 5  

         1 1

           9

Step 12:

Subtract the result in the previous step from the number written above it. (11 - 9 = 2) and write the answer at the bottom.

       1 5 3

   3 ⟌ 4 6 1

     - 3    

       1 6  

     - 1 5  

         1 1

     -     9

           2

You are done, because there are no more digits to move down from the dividend.

The answer is the top number and the remainder is the bottom number.

Therefore, the answer to 461 divided by 3 calculated using Long Division is:

153

2 Remainder

8 0
3 years ago
ingrum corporation produces and sells two products. in the most recent month, product r38t had sales of $20,000 and variable exp
Zigmanuir [339]

The break-even point is closest to $50,846.

Let understand that the break-even point refers to the point where the total revenue equals the total costs.

  • Below are steps to help us derive the break-even point.

Particulars                      R38T          X08S           Total

Sales                             $20,000     $39,000     $59,000

Variable costs              <u>$7,400   </u>     <u>$6,170   </u>      <u>$13,570</u>

Contribution margin   <u>$12,600 </u>     <u>$32,830</u>     <u>$45,430</u>

Total Contribution margin ratio = Total Contribution / Total Sales

Total Contribution margin ratio = $33,150 / $51,000

Total Contribution margin ratio = 0.65

Total Contribution margin ratio = 65%

Break even point = Fixed costs / Contribution margin ratio

Break even point = $33,050 / 0.65

Break even point = $50,846

In conclusion, the break-even point for the entire company is closest to $50,846.

See similar solution here

<em>brainly.com/question/15221928</em>

5 0
3 years ago
When a helium balloon rises in the air, it expands. If the volume of the balloon doubles, what happens to the density of the hel
Marina CMI [18]
You are asking a question I had in 6th grade ma dood
3 0
3 years ago
Place these events in the correct sequence: Neil Armstrong lands on the moon, Sputnik I, John Glenn orbits the Earth, NASA forme
Karo-lina-s [1.5K]

The correct sequence of the events is the following:

1. Sputnik I was the first artificial Earth satellite. The Soviet Union's Sputnik 1 satellite took to the skies on Oct. 4, 1957.

2. NASA was formed - The National Aeronautics and Space Administration (NASA) agency was was created in 1958 from NACA (National Advisory Committee for Aeronautics)

3. The Soviet pilot and cosmonaut Yuri Alekseyevich Gagarin completed an orbit of the Earth on 12 April 1961.

4. The astronaut John Glenn orbits the Earth on February 20, 1962.


Neil Armstrong lands on the moon,

5 0
3 years ago
Read 2 more answers
In a recent survey, 1358 arizona state university students were asked about their plans after graduation. The following results
lisov135 [29]

The answers to the given questions on the survey of students by the use of a Venn Diagram are;

A) Venn diagram attached

B) 57 Students

C) 811 Students

D) 785 Students

E) 67 Students

<h3>Understanding Venn Diagrams</h3>

We are given;

  • Total number of Students = 1358
  • Number of Students that plan to get a new job = 1194
  • Number of Students that plan to attend graduate school = 306
  • Number of Students that plan to buy a new car = 547
  • Number of Students that plan to do all three things = 46
  • Number of Students that plan to only attend graduate school = 28
  • Number of Students that plan to get a job and buy a new car, but not attend graduate school = 432
  • Number of Students that plan to get a new job and attend graduate school = 221

A) I have drawn a Venn Diagram to depict this given numbers of students and I have attached it.

B) From the venn diagram, we can see that the number of people that plan to attend graduate school and buy a new car, but not get a new job = 57

C) From the Venn diagram, we can calculate the number of students that do not plan to buy a new car is;

541 + 175 + 28 + 67 = 811

D) From the venn diagram, we can calculate the number of students plan to get a new job or buy a new car as;

541 + 175 + 12 + 57 = 785

E) From the venn diagram, we can see that the number of students that do not plan to get a new job, attend graduate school, nor buy a new car is; 67

The complete part of the question is;

A) Draw a Venn diagram that represents the situation consisting of 2. cardinalities.

B) How many people plan to attend graduate school and buy a new car, but not get a new job?

C) How many students do not plan a buy a new car?

D) How many students plan to get a new job or buy a new car?

E) How many students do not plan to get a new job, attend graduate school, nor buy a new car?

Read more about Venn Diagrams at; brainly.com/question/2099071

6 0
2 years ago
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