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
Alona [7]
3 years ago
13

if the mean score of 12 students in maths is 5 and the mean score of another 10 students is 6. Calculate the average score of 22

students to the nearest whole number​
Mathematics
2 answers:
Kaylis [27]3 years ago
7 0
The answer is 5.(5+6) divided by 2=5.5
Alexandra [31]3 years ago
7 0

Answer:

the nearest whole number​: 5

Step-by-step explanation:

(12 x 5) + (10 x 6) = 120

120 / 22 = 5.45

since the first digit of the fractional part is 4, that's less than 5.

So the nearest whole number is 5

You might be interested in
What has a greater percent of increase? 5 bonus points on 50 point exam or 5 bonus points on a 100 point exam?
yanalaym [24]
5 bonus on 50 is 5/50 *100%=10%
5 bonus on 100 is 5/100 *100%=5%
Answer: for 50 points.
8 0
3 years ago
Read 2 more answers
Someone please solve this. no where is an answer to this
serg [7]

Answer:

a=-8/5

Step-by-step explanation:

  (-1/2a-5)=3a+1

To find the opposite of  1/2 a−5, find the opposite of each term.

-1/2a-(-5)= -3a+1

The opposite of −5 is 5.

-1/2a+5=-3a+1

add 3a to both sides

-1/2a+5+3a=1

Combine-1/2and 3a to get 5/2a

5/2a+5=1

Subtract 5 from both side

5/2a=1-5

Subtract 5 from 1 to get −4.

5/2a=-4

Multiply both sides by 2/5 =0.4, the reciprocal of  5/2=2.5.

a=-4x(2/5)

express -4x(2/5)=1.6 as single  fraction.

a= -4x2/5

Multiply −4 and 2 to get −8.

a=-8/5

Fraction −8/5 ≈−1.6 can be rewritten as −8/5 =−1.6 by extracting the negative sign.

a=-8/5

8 0
3 years ago
Kimberly traveled 28 miles.She traveled twice as many miles as Joe but one third as many miles as Brina .How many miles did Joe
marishachu [46]
Kimberly-28
2x Kimberly( Joe)-28/2=14
Brina-I don’t know:((
It’s either 28/‘33=9.33
Or 28*.33=84.
7 0
3 years ago
Which of the following is the equation of a line perpendicular to the line y=-3/2x+4 passing through the points (3,9)
Luba_88 [7]
<span>Y-y1=m(x-x1) 

Y-9 =2/3 (x-3) 

Y-9=(2/3)x - 2 

Y=(2/3)x + 7 

Heres some formulas...</span>
5 0
3 years ago
Solve 13 and 14, please.
Amiraneli [1.4K]

Answer: The answer to 13 is 30. but one row will only have 1

Step-by-step explanation:If you divide 121 by 4 you will get a answer of 30 with a remainder of 1. since it is a uneven number. So you will have one row with only 1 chair.

3 0
3 years ago
Other questions:
  • 2.The number of tickets sold to a play for each showing is 78, 84, 87, 80, 91, 95, and 80.
    7·1 answer
  • the lateral area of a cone is 574 pi cm2. The radius is 19.6 cm. What is the slant height to the nearest tenth of a centimeter?
    7·2 answers
  • Estimate how many 12 -inch rulers will be about the same length as a sheet of paper
    13·2 answers
  • Express the tax rate of $4.95 per $100 as a percent
    10·1 answer
  • Simplify and Evaluate
    12·1 answer
  • Which number is in the set of integers but is not in the set of whole numbers?
    9·2 answers
  • The ecology club plans to increase the size of a rectangular green space by adding 6 feet to each dimension of the green space.
    8·1 answer
  • 14/126 in simplest terms
    7·2 answers
  • HELP ME: Lee works at a job where her pay varies directly with the number of hours she works. Her pay for 6.5 hours is $49.40. W
    11·1 answer
  • Jamaal bounces on a trampoline. His height, as a function of time, is modeled y y=-16x^2+20x+4
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!