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
Leona [35]
3 years ago
9

Two sections of a class took the same quiz. Section A had 15 students who had a mean score of 80, and Section B had 20 students

who had a mean score of 90. Overall, what was the approximate mean score for all of the students on the quiz
Mathematics
1 answer:
Ksju [112]3 years ago
3 0

Answer:

86

Step-by-step explanation:

In this question, we are asked to calculate the average mean score for a group of students split into two different emerging groups.

We calculate the total score for each of the groups. This is done by multiplying the average score by the number of students.

Total score of section A is 15 * 80 = 1,200

For section B, total score is 20 * 90 = 1,800

Overall score is thus 1200 + 1800 = 3000

We add the scores together and divide by the total number of students in both sections

Average score is thus 3000/35 = 85.71 which is approximately 86

You might be interested in
Please helpppp meeeee
aniked [119]
Answer: c
explanation:
Its f(x) but flipped and intersects at y = -3
good luck!
5 0
3 years ago
Read 2 more answers
one hundred ninety people apply for three jobs. sixty of the applicants are women. if three women are selected at random what is
NISA [10]
60/190 × 59/190 x 58/190 = 205320/6859000
3 0
3 years ago
What is the equivalent radical expression for the exponential expression<br> below?<br> 181/2
Snowcat [4.5K]

Answer: Use this rule to change the term to a radical:

x

1

n

=

n

√

x

18

1

2

⇒

2

√

18

⇒

√

18

We can simplify this expression, if necessary, by using this rule for radicals:

√

a

⋅

b

=

√

a

⋅

√

b

√

18

⇒

√

9

⋅

2

⇒

√

9

⋅

√

2

⇒

3

√

2

Step-by-step explanation:

6 0
3 years ago
While shopping in England, Sally notices the cost of bananas is £2.10/kg. Sally isn't familiar with Great Britain Pounds (GBP) o
Inessa05 [86]

Step-by-step explanation:

2.10/0.77=2.72$

dollar per kg

2.2/1=2.2lbs

$2.72/2.2lbs

1.239$/1lbs

5 0
3 years ago
Read 2 more answers
Marcus has 1,525 marbles and divides the marbles into 15 bags to seal each bag. How many marbles are in each bag and how many ma
Dmitry_Shevchenko [17]

Answer:

There are 101 marbles in each bag and 10 marbles left over

Step-by-step explanation:

We can use the modulus to find out left over. The modulus is the remainder of the division from one number by another number. For example, 7 % 2 = 1. When you divide 7 by 2, division is 3 but the remainder is 1.

1525 % 15 = 10 marbles are left over

Now, we know that 1525 - 10 = 1515 marbles are equally put into each bag. That means each bag contains

1515 / 15 = 101 marbles

8 0
3 years ago
Other questions:
  • In Mr Tarkiainens each student chooses two of the topics listed in the chart above for their papers how many different pairs can
    6·1 answer
  • A submarine lies 3 kilometers from the path of a target ship. The sub’s torpedoes have a range of 5 kilometers. For what distanc
    12·1 answer
  • Ed stein paid $40.00 interes tonaloan
    9·1 answer
  • The 5th of 9 consecutive whole numbers whose sum is 153 is?
    13·2 answers
  • Find the value of x or y so that the line through the points has the given slope (x, -7) and (3, 3); slope:1
    10·1 answer
  • OMG PLEASE Help me !!!! ILL GIVE YOU BRAINLIEST !!! Explain in order to get it
    11·1 answer
  • Help ight now 88 POINTS!
    11·1 answer
  • SOLVE PROBLEM HELP! EXPLAIN
    9·1 answer
  • PLEASE HELP NOW ITS URGENT
    12·2 answers
  • What’s the answer please i don’t need work shown :)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!