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
swat32
3 years ago
14

Prof Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two class

es combined was 84. which class had more students ?
(1) The average score for the students in the morning class was 80
(2) the average score for the students in the afternoon class was 86
Mathematics
1 answer:
yaroslaw [1]3 years ago
4 0

Answer:

Step-by-step explanation:

Given that Prof  Liu gave the same quiz to the students in her morning class and in her afternoon class. the average score for the two classes combined was 84.

(1) The average score for the students in the morning class was 80

(2) the average score for the students in the afternoon class was 86

Let m be the no of students in I class and n in II class

Total of I class = 80m and

Total of II class = 86n

Total of both classes = 80m +86n

Average =\frac{80m+86n}{m+n} = 84

m cannot be equal to n because in that case average would have been 83

If m >n, then say n =m+a

then average = \frac{80m+86m+86a}{2m+a} =84

Because 86 is more times added, average score would decrease hence we would not get 84.

So I class is getting less score of 80 to get a score average of more than 83 (the average) the class II should have more students.

You might be interested in
Jonathan tries to mathematically model the number of seats in a given row. He tries to come up with an
seropon [69]

Answer:

Yes it does

Step-by-step explanation:

Why because “r” it means rows there could 1- infinite rows so S=7r (7 it means that each row has 7 seats) so let’s say r=2 (remember that is the # of rows are) so S=7(2)+ 2 (we replace r=2 on X) so 7•2=14 S=14+2=16 soo there are S=16 like 16 seats in 2 rows hope this could help y you understand....

3 0
3 years ago
Tickets for a concert cost $2 each for children and $5 each for adults.A group of 30 people consisting of children and adults pa
noname [10]
Let,
the no. of adults be "x"
then, the no. of childern = total people - total adults 
                                   = (30 - x)
Now,
According to the quesiton,
2 (30 - x) + 5x = 87
60 - 2x + 5x = 87
60 + 3x = 87
3x = 87 - 60
3x = 27
x = 27 / 3
x = 9

So, there were 9 adults in the group

3 0
3 years ago
Someone help I've re-taken this test like 3 times now!!!
Masja [62]

Answer:

the center is around 5

Step-by-step explanation:

that's just a guess, it seems to be the one that makes the most sense to me

6 0
3 years ago
Nick bought 2.5 pounds of popcorn for $8.35 how much did he pay for each pound of popcorn
marta [7]

Answer:

$3.34 for each pound of popcorn

Step-by-step explanation:

All we must do, in this case, is divide 8.35 by 2.5.

This equals 3.34.

Therefore, each pound of popcorn cost $3.34.

Don't believe me? To check, just multiply 3.34 by 2.5.

Please let me know if you need help with anything else. :)

5 0
3 years ago
given the following information about two loaded die, what is the p(5) on die 2? die 1p(1) = 0.5 p(4) = 0.25 p(6) = 0.25 die 2p(
bagirrra123 [75]

Answer:

0.45

Step-by-step explanation:

Die 1 is loaded so that only 1, 4, and 6 are possible.

P(1) + P(4) + P(6) = 0.5 + 0.25 + 0.25 = 1

Similarly, Die 2 is loaded so that only 2, 3, and 5 are possible.

P(2) + P(3) + P(5) = 1

0.3 + 0.25 + P(5) = 1

P(5) = 0.45

3 0
3 years ago
Other questions:
  • What is the vertex of the absolute value function defined by ƒ(x) = |x + 5| + 7?
    6·2 answers
  • The standard form of the equation of a parabola is y = 7x2 + 14x + 4. What is the vertex form of the equation?
    15·1 answer
  • A(n)=−6−4(n−1)<br> Find the 4th term in the sequence
    6·1 answer
  • How would u solve 7c + 12 = -4c + 78
    7·1 answer
  • Find the GCF if the following monomials. -50m^4n^7 and 40m^2n^10
    5·1 answer
  • The graph shows the relationship between the distance a truck can travel and the amount of gasoline used.
    12·2 answers
  • Simplify each radical expression. sqrt 7 ( sqrt 14 + sqrt 3 )
    7·1 answer
  • maria makes soup with 24 total ounces of tomatoes [yellow and red]. there are 3 times as many yellow tomatoes as there are red.
    6·2 answers
  • (4,4) and (-2,-2) round to the nearest tenth
    7·1 answer
  • In the equation y=1/2x-3, what is the y-intercept? *
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!