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
Alekssandra [29.7K]
3 years ago
10

Results for a 20-point multiple choice math quiz are as follows: 9 students scored a 20,4 students

Mathematics
1 answer:
Ray Of Light [21]3 years ago
3 0

Answer:

18 1/2 or 37/2

Step-by-step explanation:

To calculate the average of something, we add the numbers and divide by the count of those numbers. In this case, we have this as the sum of the numbers:

9 × 20 + 4 × 19 + 3 × 18 + 5 × 17 + 12

And the number of students as the count:

9 + 4 + 3 + 5 + 1

Now to calculate that out:

(9 × 20 + 4 × 19 + 3 × 18 + 5 × 17 + 12)/(9 + 4 + 3 + 5 + 1) ⇒

(180+76+54+85+12)/(9+4+3+5+1) ⇒

407/22 ⇒

37/2⇒

18 1/2

You might be interested in
Evaluate 3+n-5×2 for n=4​
xxTIMURxx [149]

Answer:

-3 is the answer

Step-by-step explanation:

distribute the value of n

3+4-5×2

=7-10

=-3

6 0
3 years ago
Read 2 more answers
3 ears of corn cost $1
lisov135 [29]
Yes 3 ears of corn cost $1
3 0
3 years ago
Read 2 more answers
LaToya decides to join a gym for a minimum of one month to train for a triathlon. The gym charges a beginner's fee of $100 and a
posledela
Well 404 dollars subtract 100 for member ship and have 304 then divide 304 divided by 38 and you get 8 months plug it in and bam 8 is c which makes sesne when checking your answer
3 0
3 years ago
Read 2 more answers
How many triangles can be constructed with angles measuring 50º, 90º, and 40º?
NeX [460]

Answer: Infinite


Step-by-step explanation:

We know that in a triangle the sum of all the interior angles must be 180°.

The given angles 50º, 90º and 40º

The sum of the angles 50º+ 90º + 40º= 180°

Thus, a triangle is possible with the given measurement.,

Let there is another triangle with the given angles, then by AAA similarity criteria they are similar.

Similarly, all the triangles with the same measurements of the angles must be similar.

Therefore, there are infinite number of triangles can be possible with angles measuring 50º, 90º, and 40º.

6 0
3 years ago
Read 2 more answers
Solve for x. See attachment.....
N76 [4]
64=-4+4x
64+4=4x
68=4x
68/4=x
17=x
8 0
3 years ago
Other questions:
  • In complete sentence tell me about hamiltions three step plan?<br><br> i need help fast
    11·2 answers
  • Use the formula to evaluate the infinite series riund to the nearest hundredth if necessary 9+3+1+
    13·1 answer
  • To shift the graph of an equation a certain number of units _____, you need to add that number to the function's equation. A.up
    13·2 answers
  • Solve the equation t - 8 = -3.
    5·2 answers
  • M=1/5 y-intercept is 0,4​
    13·1 answer
  • 3 roads, A, B, and C. B is three times longer than A. C is twice as long as B. Draw the roads. What fraction of the total length
    10·1 answer
  • Write these as normal numbers.
    7·1 answer
  • (02.03 MC) The figure shows two triangles on a coordinate grid: A coordinate grid is shown from positive 6 to negative 6 on the
    10·1 answer
  • I need Unit 3 parallel and perpendicular lines Homework 5 slope of lines it’s due today!
    5·1 answer
  • Choose all numbers that are greater than 12%
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!