Mathematics High School

A bag contains only red, green, brown and yellow marbles. The probabilities of selecting each colour are shown below. Colour Red Green Brown Yellow Probability 0.2 0.3 x 0.1 Find the probability of selecting a brown marble.

Answers

Answer 1

Answer:

0.4

Step-by-step explanation:

Given that:

Probability of :

Red _____Green ___ Brown _____ Yellow

0.2 ______ 0.3 ______ X ________ 0.1

Since the bag contains only red, green, brown and yellow marbles ;

The sum of each color's probability should sum up to 1;

ΣP(x) = 1

Hence,

0.2 + 0.3 + x + 0.1 = 1

0.6 + x = 1

x = 1 - 0.6

x = 0.4

P(brown) = 0.4

Related Questions

Write the slope-intercept form of the equation for the line given the slope and y-intercept (equation: y=mx+b) Slope = 5, y-intercept = 2

Answers

Answer:

y=5x+2

Step-by-step explanation:

Slope formula:

y=mx+b

- m stands for slope

- b stands for y intercept.

Plug the information in:

y=5x+2

A farmer needs to box 740 apples. A box holds 9 apples. If every box is full except for the last, how many apples are in the last box?

Answers

9 times 82 = 738 740-738=2

la pirámide tiene una base cuadrada, por tanto, tiene 4 caras laterales triangulares. hallar el área y el volumen sabiendo que tiene de base 8cm y de altura 13 cm

Answers

Answer:

i think i know th problem but i do not understand your language i sorry

Step-by-step explanation:

x^3=1/8 I'm so confused plz help

Answers

Answer: 1/3

Step-by-step explanation:

x^3= 1/8

Therefore x= cube root of 1/8= 1/3

B. Prove the following using indirect proof.
1. If x = 3, then 3x + 5 ≠10
2. If a triangle is an isosceles triangle ( 2 sides are equal), then the base angles
cannot measure 92 degrees.
3. Given: 3 - 5 ≠ 13
Prove: r≠6
4.Given: x = 5
Prove: 2x + 4 12

Answers

Answer:

jsjsusjsksksisidjjdsksjks

Amos scored 100 points while playing 3 rounds of a game.

Points
Round 1 - 30
Round 2 - 25
Round 3 - ?
Total - 100

How many points did he score in round 3?

Complete the steps to solve the problem.

1. What do you need to solve for this problem? Choose a variable to represent this unknown value.

2. Using the variable you chose, write an equation to represent this situation. (Hint: You may want to put the number of points in each round on one side and the total number of points on the other.)

3. Solve this equation to find how many points Amos scored in round 3. Show your work.

Answers

1. We can subtract the scores of the first and second rounds from the total score to obtain the score in the third round.

2. An equation including a variable to solve would be x + 30 + 25 = 100.

3. By solving the equation we obtain Amos scored 45 points in the third game.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

From the given information the score for her third round would be,

= (100 - 30 - 25).

= 100 - 55.

= 45.

Another way to solve this problem is assuming Amos scored 'x' in the third game.

Therefore, (30 + 25 + x) = 100.

55 + x = 100.

x = 100 - 55.

x = 45.

learn more about numerical expressions here :

https://brainly.com/question/29199574

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Someone help and make sure the answer is right please and thank you!!!! :)

Answers

Answer:

A, 6

Step-by-step explanation:

[tex]50=8x+2[/tex]

subtract [tex]2[/tex] from both sides

[tex]48=8x[/tex]

divide both sides by [tex]8[/tex]

[tex]x = 6[/tex]

plz mark me brainliest ;)

2 A square window in Miranda's
house has an area of 225 in2.
What is the perimeter of the
window?

Answers

Perimeter is , or around 63.89 in.
If you meant that the area was 225 in²:
Perimeter is 60 in

What is -7.654 - 4.76?

Answers

Answer: -12.414

Step-by-step explanation:

On Monday, Maggie ran n miles. On Tuesday, she ran 90% of the number of miles that she ran on Monday. On Wednesday, she ran 50% of the
number of miles that she ran on Tuesday.
Move a symbol to the box and expressions to the blanks to create two equivalent expressions that represent the total number of miles
Maggie ran on Monday, Tuesday, and Wednesday.
First expression: n +0.900
Second expression:

Answers

Answer:

50% times n + 0.900

Step-by-step explanation:

I Think It's That.

The owner of a garden center pays $25 for each birdbath . She sells them for 15% more than she paid. Decide whether each expression represents the selling price for b birdbaths.

Answers

Answer:

The selling price is $28.75b.

Step-by-step explanation:

There are no options given but I will represent the word problem mathematically.

Let b stand for all the birdbath. If the owner pays $25 for each, then he pays $25b.

Selling them for 15% more means, 15% of the cost price was added to the original price. Finding 15% of cost price we have:

15% x $25b = 0.15 x $25b = $3.75b.

Therefore, the selling price is given as

$25b + $3.75b = $28.75b.

HELLLLLLLLLLLLLLLP ME PLEASE

Answers

Answer:

f(q) = 4

Step-by-step explanation:

Simplify.

h ⋅ 10q = 40 ⋅ q

Divide each term by 10 q and simplify.

h = 4

To rewrite as a function of q , write the equation so that h is by itself on one side of the equal sign and an expression involving only q is on the other side.

f(q) = 4

hope this helps :)

40q because you have h(c)=4c so you already know what ur timing by which is 4 so u got h(10q) = 4times10q so you times 4 and 10 and get 40 u can’t do nothing w the q so the answer is 40q

please help me. very confused

Answers

Answer:

a. 16

Step-by-step explanation:

sin x = cos (90-x)

sin 74 = cos (90-74)

sin 74 = cos 16

can yall do me a favor, i know this random but i got played by someone so can u spaam his ig, acc name is sturdyyyyy_ just spam his comments called him a cheater and tell him he weird. please. females help a person out.

Answers

Answer:

okkkkk

Step-by-step explanation:

anybody know this i'll give you brainliest

Answers

[tex]\sqrt{5}[/tex] is in between 2 and 3

[tex]\sqrt{105}[/tex] is in between 10 and 11

[tex]\sqrt{99}[/tex] is in between 9 and 10

[tex]\sqrt{27}[/tex] is in between 5 and 6

[tex]\sqrt{2}[/tex] is in between 1 and 2

[tex]\sqrt{67}[/tex] is in between 8 and 9

[tex]\sqrt{133}[/tex] is in between 11 and 12

[tex]\sqrt{90}[/tex] is in between 9 and 10

Answer:

[tex] \sqrt{5} = 2.24[/tex]

[tex] \sqrt{105} = 10.24[/tex]

[tex] \sqrt{99 } = 9.95[/tex]

[tex] \sqrt{27} = 5.2[/tex]

[tex] \sqrt{2} = 1.4[/tex]

[tex] \sqrt{133} = 11.53[/tex]

[tex] \sqrt{90} = 9.49[/tex]

[tex] \sqrt{67} = 8.16[/tex]

Answer:

$39

Step-by-step explanation:

19+20=39

because the $20 is additional while $19 is the original, therefore you add the two digits together to get $39

Answer:

$380.00

Step-by-step explanation:

20% of $19.00

19.00 x 20

= $380.00

Please help will give Brain!!

Answers

Answer: c

To learn more about the graph visit:

brainly.com/question/14375099.

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Evaluate the expression 7x + 19.4 when x = 6.3

Answers

Answer:

63.5

Step-by-step explanation:

just plug in 6.3 for x!

7(6.3) + 19.4 = 63.5

hope this helps!

Three different, positive integers have a
mean of 8 and a median of 11. Find the
three numbers.

Answers

Answer: mean is 8, median is 11

Step-by-step explanation:

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