There are 9 counters in a bag.
7 of the counters are green.
2 of the counters are blue.
Ria takes at random two counters from the bag.
Work out the probability that Ria takes one counter of each colour.
You must show your working.

Please show the full working out so I know how to get full marks in future I’ll give brainiest

Answers

Answer 1

Answer:

7/18

Step-by-step explanation:

Probability is the ratio of the number of possible outcomes to the number of total outcomes.

Given that there are 9 counters in a bag, 7 are green while 2 are blue.

the probability of picking at random a

Green counter = 7/9

Blue counter = 2/9

The probability that Ria takes one counter of each colour if 2 counter are picked as random is Green and Blue or Blue and Green

This is

=7/9 * 2/8 + 2/9 * 7/8

Recall that when a counter is picked the number of that ball available reduces and so does the total number of counter

=14/72 + 14/72

= 28/72

= 7/18


Related Questions

In ARST, the measure of T=90°, ST = 7.7 feet, and RS = 9.7 feet. Find the measure
of R to the nearest degree.
9.7
7.7
X
T
R
Answer:
Submit Answer

Answers

Answer: 53

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

Hakeem left his house and drove to the store. He stopped and went inside. From there, he drove in the same direction until he got to the bank. He stopped and went inside the bank. Then he drove home. The graph below shows the number of blocks away from home Hakeem is xx minutes after he left his house, until he got back home.

Answers

Answer:

where is the pic of the graph?

Can you please tell me the equation to solve for x

Answers

Answer:

53 + 67 + x = 180

Step-by-step explanation:

Answer:

180 = 53 + x + 67

(A straight line equals 180°)

good luck, hope this helped :)

Hi I need help with #9 please I’m not sure what I’m supposed to do on this

Answers

Answer:

assuming ABCD is a parallelogram angleB+angleA=180°

Step-by-step explanation:

118°+2x+7+9x-33=180

125+11x-33=180

92+11x=180

11x=180-92

11x=88

x=88/11

x=8

Hello!! I have a question, can you please answer it. ^^


The school nurse is assembling first-aid kits for the teachers. She has 75 bandages and 90 throat lozenges.
All the kits must have the same number of each supply, and all supplies must be used.

a. What is the largest number of kits the nurse can make?

b. How many bandages and lozenges will be in each kit?

Answers

Answer:

1. 75

2. 1

Step-by-step explanation:

Tim has completed five math problems and 13 minutes if he continues at the same rate how long will it take him to finish 20 problems

Answers

Answer:

52 minutes

Step-by-step explanation:

it takes him 13 minutes to complete 5 so if he wants  to do 20 problems  do 20 divided by 5 (4) then do 13 times 4=52

A rectangle has length 6 cm and width 4 cm. Give the length and width of another rectangle with the same area but a different perimeter.

Answers

Answer:

length could be 8 cm and width would be 3 cm and that would have a perimiter of 24 cm also

Gloria sells skateboards and charges a $15 shipping fee for each skateboard. She sold 14 skateboards last week and charged a total of $938. If Gloria charges the same amount for each skateboard, how much does she charge for one skateboard?

Answers

Answer:

She charges 52$

Step-by-step explanation:

The answer would be $52

What is 26% of $3,000

Answers

the answer is def not 5778
The answer is 0.26 x 3000 = $780

Whoever can answer 11-2 in PEDMAS form pls do it.

Answers

Answer:

9

Step-by-step explanation:

11 - 2 = 9

8x8x8=_______=_______​

Answers

Answer:

8*8*8= 8^3= 512

Step-by-step explanation:

Answer:

8x8x8= 8^3 = 512

Step-by-step explanation:

Hope this helps

Find the solution to the system by graphing

Answers

Answer:

y = -3x + 1 (Red line)

y = x - 7 (Blue line)

..................Help please!

Answers

Answer:

with

Step-by-step explanation:

what

HI PLSS HELP THIS IS DUE IN 15 MINS AND PLS SHOW WORK TYY

find all the missing angles

Answers

Answer:

its #####

Step-by-step explanation:

first you have to##### and then you pls give me points because a need help with some stuff

y= 43
x= 137
z= 137
hope this helped

4
What is the result of 2-10?
.
1
5

Answers

Answer:

-3.14530027393739338363829263839

-Step-by-step explanation:

My soccer team has 16 players. I have to choose a starting lineup of a goalie and 10 regular players (the regular players are interchangeable). How many different starting lineups can I choose?

Answers

Answer:

48048

Step-by-step explanation:

Total number of players = 16

Selection to be made :

1 goalie ; 10 players

Hence ;

Choosing 1 goalie from 16 players :

16C1

Choosing 10 players from the remaining (16 - 1), 15 players

15C10

Hence,

16C1 * 15C10

16 * 3003

= 48048

which algebraic expression represents the word expression "three times the square of a number, n, subtracted from 54. ANSWER ASAP

Answers

the answer would be 54-3[n]

The radius of a circle can be approximated using the expression √(A/3). A circular kiddie swimming pool has an area about 28 square feet. An inflatable full-sized circular pool has an area of about 113 square feet. How much greater is the radius of the full-sized pool than the radius of the kiddie pool? round to the nearest whole number.
It says Hint: First find the radius of each pool by substituting for A in the expression. Divide by 3 before approximating square root.

Answers

Answer:

yeah I know you are literally perfect for you to be home

By using the expression to approximate the radius of a circle, we want to compare the radius of the two pools. We will find that the radius of the full-sized pool is 2 times larger than the radius of the kiddie pool.

The expression for the radius of a circle is:

R = √(A/3)

Where A is the area of said circle.

The circular kiddie swimming pool has an area of 28ft^2, we just replace that in the above expression to get:

R =  √(28 ft^2/3) = 3 ft

The full-sized pool has an area of 113 ft^2, then its radius is:

R' = √(113 ft^2/3) = 6 ft

To see how much greater is the radius of the full-sized pool than the radius of the kiddie pool, we just take the quotient:

R'/R = 6ft/3ft = 2

Meaning that the radius of the full-sized pool is 2 times larger than the radius of the kiddie pool.

If you want to learn more, you can read:

https://brainly.com/question/20767796

What is 10x+ 5y =30 in function form

Answers

The answer would be y=3 over 5

Put the following numbers in order from least to greatest 6.-3, 0, 4.-5​

Answers

Answer:

-5, -3, 0, 4, 6

Step-by-step explanation:

Answer:

-5,-3,6,4,0

Step-by-step explanation:

I just did least to greatest

What is the greatest common factor (GCF) of 12x and (3x^2 + 6x)?
(B) 3x
(C) X + 2
(D) 3x(x + 2)
(A) 3

Answers

Grater factor is3x(x2

What is the value of the expression?
2 x[(-6 + 4) X (5 + 9) - 3]

Answers

Answer:

- 62

Step-by-step explanation:

Calculate the sums within the brackets first and then multiplication, as stated by the BOMDAS rule.

B = Brackets

O = ?

M = Multiplication

D = Division

A = Addition

S = Substitution

(- 6 + 4) = -2

(5 + 9) = 14

- 2 × 14 = -28

- 28 - 3 = - 31

2 × - 31 = - 62

Disclaimer: I am not sure if one of the x's is used as a variable or not

Please do number 16 for me.

Answers

Answer: m∠5 = 75°.

Step-by-step explanation:

We know that lines A and B are parallel, and angles 1 and 5 are formed by the same line intersecting the parallel lines.

We know that:

"When a line intersects two parallel lines, corresponding angles are formed, such that we could think on four quadrants, the angles in each quadrant are equivalent between them"

Well, here we can see that angle ∠1 and angle ∠5 are formed by the same line, and both are in the same quadrant (would be the third quadrant if we use standard notation)

Then the measure of ∠1 is the same as the measure of ∠5

And we know that m∠1 = 75°

Then we must have that m∠5 = 75°.

HELP ASAP GIVING BRAINLIEST!!!

Answers

Answer:

Ok???????????????????

Joyville has a population of 20,750 people.
Its population is increasing at a rate of 2.7%
each year?

Answers

560 people move to Joyville each year.
I just used a calculator.. and put ( 20,750 + 2.7% = 560.25) so hopefully that helps!

Someone please help :( ?????

Answers

The answer is B darling

Solve for x.
(x + 10)°
(4x - 35)°

Answers

Answer:

x = 15

Step-by-step explanation:

x+10=4x−35

x+10−4x=4x−35−4x

−3x+10−10=−35−10

−3x=−45

x = 15

Can someone answer this question please ASAP

Answers

Answer:

x = 2

Step-by-step explanation:

High-definition televisions have an aspect ratio of 16: 9. The following answer choices are television screen sizes rounded to the nearest inch. Which could be a High-definition television?

Answers

Answer:

18.5 in approx

Step-by-step explanation:

Given data

aspect ratio of 16: 9

L= 16in

W= 9 in

We want to find the diagonal of the TV

applying Pythagoras theorem

d^2= l^2+w^2

d^2= 16^2+ 9^2

d^2=256+81

d^2= 337

d= √337

d= 18.35 in

Hence the tv is 18.5 in approx

a) 82
b) 42
c) 98
d) 70

Answers

Answer:

option d.

let the two angle of mnp be x and y

in the trapezoid NO and MP are parallel.

so the 28° = y and 42°=x(by alternate interior angle)

so the angle mnp= x+y

angle mnp=28°+42°=70°

Other Questions
3x=6y-3 (table of values) hi plzzz helpp meeeee Robert Hooke was the first scientist to give the cell a name. Which statement is true about him?a)H e looked at an onion skin with his naked eyes to see cells.b)He invented the microscope.c)Under the microscope he observed box-like compartments of cork tree bark.d)He used the microscope to observe skin cells. which of the following are not true concerning the effects of pollutants on exercise. Giving everything!!!!!!!!! Plzzzz help!!!!!!!!!!! ASAP!! The diagram below shows parts of the human brain.Which part of the brain is labeled 4 in the diagram?A. medulla oblongataB. occipital lobeC. parietal lobeD. brain stem 60 in scientific notation 2. How did Daz finally confront his fears, and what was the result? Work out m and c for the line:y=9x This box is 3/4 inch long 1/2 inch wide and 1/4 inch deep what is the volume of the box ? The dimensions of a triangle with base 10 in. and height 4.8 in. are multiplied by 4. How is the area affected? Use the GCF (Greatest common factor) to factor the expression 2x2 + 8x How do you think specific traits help organisms access or utilize resources more efficiently? The formula for converting degrees Fahrenheit (F) to degrees Celsius (C) is c= 5/9 (f-32) Find C for F = 59 2. Which organisms should be the least common? If Max holds his breath as he lifts weights, he is performing the Valsalva maneuverhe might become dizzy and light-headedhe is increasing his blood pressureall of the above When constructing an energy pyramid of the swamp ecosystem, which of these would be placed at the top of the pyramid? Solve by Elimination:x - 2y = 4X - 1y = 2its urgent DiaryEntry Imagine you and your family are forced to leave your home with only what you can carry in your arms. You are moved to a ghetto, where you must now share a small apartment with several other families. If you refuse to move into the ghetto, you will be shot. If you try to leave the ghetto, you will be shot. In a matter of hours, your entire life has changed no more home, very few belongings, and total uncertainty.Your task is to write a diary entry describing your experience and your feelings. Try to really imagine yourself and your family in this situation. Use the space below to describe what happens to you, and to express how it makes you feel. Use the back of the page if you need more space. What did Dorothy Moore testify in court in the July 14th section?A. She testified that she is his sister and can attest to his good character.B. She testified that James King admitted to shooting Mr. Nesbitt.C. She testified that she was at a restaurant with James at the time of the murder.D. She testified that James King was at her house at the time of the murder because he thought of her and gave her a lamp.Monster by Walter Dean Myers, Page 286 End Carl earns grades of 62, 78, 59, and 89. What is the mean of his grades?