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
k0ka [10]
3 years ago
6

Who Washes? Erica and Aaron, who are siblings, have decided to use a lottery system to decide who will wash dishes every night.

They will put some power chips into a bag, some red and some blue.

Mathematics
1 answer:
Anestetic [448]3 years ago
3 0

Given that Erica and AAron,are using lottery system to decide who will wash dishes every night.

They put some red and blue power chips and draw each one.  If same colour, Aaron will wash and if not same colours Erica will wash

If the game is to be fair, then both should have equal chances of opportunity for washing.

i.e. Probability for Erica washing = Prob of Aaron washing

i.e. P(different chips) = P(same colour chips)

Say there are m red colours and n blue colours.

Both are drawing at the same time.

Hence Prob (getting same colour) = (mC2+nC2)/(m+n)C2

Probfor different colour = mC1+nC1/(m+n)C2

The two would be equal is mC2 +nC2 = m+n

This is possible if mC2 =m and nC2 = n.

Or m = 2+1 =3 and n =3

That for a fair game we must have both colours to be 3.


You might be interested in
I need help with this
Aliun [14]

Answer:

use air math it will give u full explanation

5 0
1 year ago
Read 2 more answers
How many pounds are equivalent to 192 ounces
soldi70 [24.7K]

Answer:

12 pounds

Step-by-step explanation:

there are 16 ounces in a pound, so 192 divided by 16, would be 12

therefore 192 ounces is equivalent to 12 pounds

7 0
3 years ago
How to solve 6x - 9 - 2 (1 - x) = x + 9​
Likurg_2 [28]

x = 2.857

\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}

6x - 9 - 2(1 - x) = x + 9 \\ ⇢ 6x - 9 - 2 + 2x = x + 9 \\ ⇢ 8x - x = 9 + 11 \\ ⇢ 7x = 20 \\ ⇢  x =  \frac{20}{7}  \\ ⇢ x = 2.857

{ \bf{ \underbrace{To\:verify:}}}

6 \times 2.857 - 9 - 2(1 - 2.857) = 2.857 + 9 \\ ➪ \: 17.142 - 9 - 2 \times(  - 1.857) = 11.857 \\➪ \: 8.142 + 3.714 = 11.857 \\➪ \: 11.856 = 11.857 \\  ➪ \: 11.86 = 11.86 \\ ➪ L.H.S.=R. H. S

Hence verified.

\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}

7 0
2 years ago
Please answer number 1.
Aneli [31]

Answer: The two specific conjectures are in the first image, and the two general conjectures are in the second image.

7 0
2 years ago
A ball is thrown vertically upward from ground level with an initial velocity of 80 feet per second. The ball's h height after t
Mariulka [41]

Answer:

A

Step-by-step explanation:

It only takes 5 seconds friend.

4 0
3 years ago
Read 2 more answers
Other questions:
  • (-2/3)(1 2/5)(-1 5/7)
    11·1 answer
  • If the parent function is y = 4x, which is the function of the graph?
    10·1 answer
  • Is -10 a solution of x+6=16
    7·2 answers
  • Please help me!!!
    7·1 answer
  • George bought 4 Submarine sandwiches for birthday party if each person will eat 2/3 of a sandwich how many people King George fe
    15·1 answer
  • a microwave oven has a capacity of 1.59ft³. the interior of the microwave of the is 14 in wide and 14 in deep. what is the heigh
    14·1 answer
  • 18. The graph of f(x) = ax2 opens
    8·1 answer
  • What is the answer to this question?
    8·1 answer
  • Explain the 'price effect' for normal 'substitutes' and 'complementary' goods.​
    10·1 answer
  • Differentiate with respect to x (6-2x)^3​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!