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
Akimi4 [234]
3 years ago
8

From a class of girls and boys the probability that one student chosen at random to answer a question will be a girl is 1/3 . If

four boys leave the class , the probability that a student chosen at random to answer a question will be a girl is 2/5 . How many boys and girls are there in the class before the four boys leave ?
Mathematics
2 answers:
Drupady [299]3 years ago
5 0
Let the no. of girls be x and boys be y......
x/y=1/3
=>3x=y            ...............(I)
now 4 boys leave the class is then
x/y-4=2/5
=>5x=2y-8
(I)=>5x=2(3x)-8
x=8
now 3x=y
=>y=24
therefore no. of girls is 8 and the no. of boy is 24..............
I have tried my best.....hope i helped............
kotykmax [81]3 years ago
4 0

Answer:

no

Step-by-step explanation:

You might be interested in
12 divided by 5/6 (pretty easy but im lazy)<3
Mumz [18]

Answer:

14.4

Step-by-step explanation:

Hope this helps you :)

6 0
3 years ago
Read 2 more answers
Which coordinate pair represents the reflection of poin A across the y-axis
son4ous [18]

Answer:

i need and image

Step-by-step explanation:

5 0
2 years ago
Which ordered pair is a solution of the equation?
olasank [31]

Answer:C

Step-by-step explanation:

cause I say so.

6 0
3 years ago
Estimate how many hours it take a shark to swim 200 miles if he swims 33 mph
babymother [125]
Approximately 6 hours
8 0
3 years ago
Read 2 more answers
6. Which expression is equivalent to 2mm+1)+3m-2)?<br> 2?
qaws [65]

Answer:

4m² + 6mn - 2n²

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • What is the percent decrease of $65.50 to $52.40
    7·1 answer
  • Of the new cars in a car dealer's lot, 1 in 6 are white. Today, 4 cars were sold.
    10·1 answer
  • Simplify the expression (7x² - 3x) + (11x² - x - 7) A. 18x² + 2x + 7 B. 4x² - 4x - 7 C. 18x² - 2x - 7 D. 18x² - 4x - 7
    5·2 answers
  • Plz I need your help! Question in picture!
    10·1 answer
  • Please help and write a proper answer I really need it. Thanks.
    11·2 answers
  • This is probably rly easy but need help asap
    14·2 answers
  • Find the area A of polygon TUVWXY with the given vertices.
    15·1 answer
  • If it took 8 hours to clean 12 houses how many houses could be cleaned in 12 hours
    14·1 answer
  • Dkdslsnavlsnvkjnajksv1
    10·2 answers
  • PLEASE HELP!!!<br> Due in 10 minutes!
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!