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
allsm [11]
3 years ago
13

John and Annie have two distinguishable ponds. Initially, each of the ponds contains four ducks and five geese. John first picks

a bird uniformly at random from the left pond and moves it to the right pond. Then, Annie picks a bird uniformly at random from the right pond. What is the probability that Annie picks a duck?
Mathematics
1 answer:
Sladkaya [172]3 years ago
4 0

Answer: 4/9

Step-by-step explanation:

The probability that annie picks a duck Pt= the probability of picking a duck without accounting for the added one (Po)+ probability of picking the added bird and it's a duck(Pi)

Pt = Po+Pi

Since the total number of birds in the right pond is 10 after the addition of one by john

Po= 4/10

Pi= the of john adding a duck × the probability of annie picking the added bird

Pi= 4/9 × 1/10

Pi = 4/90

Pt= 4/10 + 4/90

Pt = (36+4)/90

Pt=40/90

Pt= 4/9

(This implies that the probability of picking a duck remain the same even after the addition of one bird from the left ponds because they both have equal proportions of duck and geese i.e the initial number of duck and geese in both right and left ponds are 4 and 5 respectively)

Thanks.

You might be interested in
HELP MEEEEE <br> (The problem is in the picture)
Licemer1 [7]

Answer:

Hey there!

We don't have enough information. 7(n+5) can be written as either the 7 times the sum of n+5, or 7 multiplied by n+5.

Let me know if this helps :)

8 0
3 years ago
Read 2 more answers
Find the measure of CDE. The measure of CDE equals a certain # of degrees.
vredina [299]

2x-13+3x-8+2x-3+2x-7+3x-1+2x+11+2x+9= (7-2)×180

16x-12=(7-2)×180

(7-2)×180 Work this out on a calculator

And then that answer=16x-12

Then you solve by adding 12 both sides and dividing by 16 both sides to get what x is.

7 0
3 years ago
Please help me I I will give you a Brainly
Dimas [21]

Step-by-step explanation:

by deleting

9y = -9

y = -1

6x - 4 = -10

6x = -6 then x = -1

5 0
2 years ago
Prove using coordinate geometry. Prove that the points (0,0), (4,0), (4, 4) and (0, 4) create a rhombus and then show that the m
BaLLatris [955]

Answer:

IDK

Step-by-step explanation:

IDK

5 0
3 years ago
Determine the area of this figure. Round your answer to the nearest tenth place.
denis-greek [22]
36 feet okay it is 36 feet of the area
5 0
2 years ago
Other questions:
  • A bag contains the letters from the words SUMMER VACATION. You randomly choose a letter. What is the probability that you choose
    7·2 answers
  • HELP ASAP
    12·1 answer
  • The hypotenuse of an isosceles right triangle is 14 sqrt 2. How long is each leg of the triangle?
    9·1 answer
  • PLS HELP!! The graph of an equation is shown below. which of the following points is a solution to the equation?
    8·1 answer
  • Y=4x−9<br> Complete the missing value in the solution to the equation
    11·1 answer
  • Find the length of side w.
    8·1 answer
  • If the graph below corresponds to the equation y = x2 + bx + c, what are the values of b and c?
    9·1 answer
  • What does "The product of n and 6 is subtracted from five-sixths of b" mean​
    14·1 answer
  • Line /1 and line /2 are parallel line
    8·1 answer
  • PLEASE HELP! a little confused
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!