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
pickupchik [31]
2 years ago
7

In a school 50% of the students are younger than 10, 1/20 are 10 years old and 1/10 are older than 10 but younger than 12, the r

emaining 70 students are 12 or older. How many students are 10?
Computers and Technology
1 answer:
Zielflug [23.3K]2 years ago
3 0

Answer: 10 students

Explanation:

Students younger than 10 = 50%

Students that are 10years old = 1/20 = 1/20 × 100 = 5%

Students that are older than 10 but younger than 12 = 1/10= 1/10 × 100 = 10%

Students that are 12 years or older

= 100% - (50% + 5% + 10%)

= 100% - 65%

= 35%

This means that 35% of the students are 12 years or older and we've been given the number as 70.

Let's say the total number of students is x. Therefore,

35% of x = 70

0.35 × x = 70

0.35x = 70

x = 70/0.35

x = 200

The total number of students is 200.

Therefore, the number of students that are 10years will be:

= 1/20 × 200

= 10 students

Therefore, 10 students are 10 years.

You might be interested in
Heelp my brainly stuff says i am 49 but im 11 how to fix?X??
stich3 [128]

Make another account. But u cant get into brainly unless u r over 26 or something.

6 0
3 years ago
And what way do you mixed and market economy support the ideals of democracy​
PolarNik [594]
Mixed and market economies protect individuals' ability to make their own economic decisions.
5 0
3 years ago
Which of the following statements best describes O*NET OnLine?
irakobra [83]

The process that aids managers to better understand the processes through which they are performed most effectively by gathering and organizing detailed information about various jobs within an organization so that is called Job analysis and is performed by a job analyst in an organization. Occupational Information Network (O*Net) is a database that provides both basic and advanced job-analysis information; as such, IT can be viewed as an alternative to conducting job analysis. O*NET OnLine has detailed descriptions of the world of work for use by job seekers, workforce development and HR professionals, students, researchers, and more. It is a tool for career exploration and job analysis.

 

 

 





8 0
3 years ago
In a game with three frames, where will the objects on Layer 1 appear?
Ivan
It’s between d or c
6 0
3 years ago
Read 2 more answers
In what type of computer are exchangeable disks mostly used?​
sasho [114]

Answer:

Laptops

Explanation:

They are the most common disk exchanging devices.

7 0
2 years ago
Other questions:
  • Assume that an int variable age has been given a value. Assume further that the user has just been presented with the following
    14·1 answer
  • What will be the output of the following Python code? class A: def test1(self): print(" test of A called ") class B(A): def test
    15·1 answer
  • As part of his proofreading process, and to catch any spelling or grammar mistakes, John uses this feature in Word Online to hav
    7·1 answer
  • discuss the benefits of normalization, and do you think we should normalize our designs to higher levels than 3NF? Why or why no
    9·1 answer
  • Hellpppp please I need it!
    15·1 answer
  • For this assignment your are to implement the Pet Class described in Programming Exercise 1, starting on page 494 in our textboo
    6·1 answer
  • Document accurately describes the differences between servers and computers and between local and wide area networks. Document p
    5·1 answer
  • Question 1 (3 points)
    6·2 answers
  • A multiprocessor with 10 processors has 36 attached tape drives. A number of jobs have been submitted to the system where each j
    8·1 answer
  • 8) how many nanoseconds does it take for a computer to perform one calculation if it performs 6.7 x 107 calculations per second?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!