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
lys-0071 [83]
3 years ago
5

an mark obthe meatin by 9 students of class 6 in exam is 50 among them the mark obtain by 8 student are 60, 40, 50, 30, 80, 40,

45, and 40 what is the mark of remaining 1 student​
Mathematics
1 answer:
borishaifa [10]3 years ago
7 0

Answer: 65

Step-by-step explanation:

Since the mean mark of the 9 students is 50. Their total marks will be:

= 9 × 50

= 450

Since the marks obtained by 8 students are given, we add the marks together and this will be:

= 60+40+50+30+80+40+45+40

= 385

The score of the 9th student will be:

= 450 - 385

= 65

You might be interested in
Find two numbers the exact answer is between 6 x 7,381
Arte-miy333 [17]

I got 37,286 the steps were...

2 4

7,381

× 6

---------

37,286.

Am I suppose to multiply?

4 0
3 years ago
Multiple choice math question, need some help please, thanks
enot [183]
20,000 miles because 1 mile and 1,000 miles are too small and 100,000 is too big. Hope that this helped!
6 0
3 years ago
Which equation has a graph that is a parabola with a vertex at (–1, –1)?
Artist 52 [7]

Answer:

y=(x+1)^2-1

which agrees with the last option listed.

Step-by-step explanation:

We use the vertex form of a parabola:

y-y_v=a(x-x_v)^2

which with the information we have becomes:

y-y_v=a(x-x_v)^2\\y-(-1)_v=a(x-(-1))^2\\y=a(x+1)^2-1

Therefore the equation that corresponds to such vertex (-1, -1) is the last one listed among your given answer options.

y=(x+1)^2-1

3 0
3 years ago
Read 2 more answers
I really need help with this answer
Bond [772]

Answer:

The given two triangles are not congruent.

Step-by-step explanation:

See the diagram of the two triangles attached to this question.

The third angle of the second triangle is [180° - (31° + 124°)] = 180° - 155° = 25°.{Since the other two angles of the triangle are 31° and 124°}

Now, for the first triangle, the values of the adjacent angles of the side with length 6 are 45° and 31°, but for the second triangle, the values of the adjacent angles of the side with length 6 are 25° and 31°.

Therefore, two triangles do not satisfy the Angle=Side-Angle i.e. ASA criteria to become congruent.  

So, the given two triangles are not congruent. (Answer)

5 0
3 years ago
Please show all work and first right answer gets brainly.
ladessa [460]

Answer:

im not good with math sorry :(

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • Marina wants to purchase a rosebush ford dollars at a garden store. She has a coupon good for
    9·1 answer
  • Please help me with this problem
    10·1 answer
  • __________ statistics consists of organizing and summarizing information​ collected, while (descriptive / inferential / quantita
    11·1 answer
  • Graph the solution of the inequality: 4/9x - 10 > x/3 - 12
    15·2 answers
  • mary is eighteen years older than her son. she was three times as old as he was one year ago.How old are they now?
    12·1 answer
  • 4x-2x what is the answer to this?​
    9·2 answers
  • Help me for brainliest ✅✅✅✅✅✅✅✅
    15·1 answer
  • 1) Simplify into Standard Form.<br> 2(x – 3)^2 – 1 help !
    11·1 answer
  • I need this in less than 5 minutes :((
    8·1 answer
  • Mrs. Kelso and Mr. Bonham gave each of their students a small bag of colored tiles. The students each counted the number of purp
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!