A jar contains 3 blue marbles and 2 red marbles. A marble is randomly selected from the jar and replaced, and then a second marble is chosen.

What is the probability that the blue marble was chosen both times?​

Answers

Answer 1

Answer:

3/5

Step-by-step explanation:

3+2=5. 3/5 is the blue marble. You may also say 6/10. It is likely you will pull out a blue marble.

Answer 2

probability that the blue marble was chosen both times 6/10.

What is probability?

It is a branch of mathematics that deals with the occurrence of a random event.

Jar contains 3 blue marbles.

Jar contains 2 red marbles.

Total marbles= 5

If she replaced a marble and second time she choose a marble gets blue.

Then, probability of blue marble= 3/5.

But for both the probability for both instance will be 3/5 i.e.,

=  3/5*2/2

= 6/10

Hence, probability that the blue marble was chosen both times 6/10.

learn more about probability here:

https://brainly.com/question/11234923

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Related Questions

plzz help...
Which of the following statements is true? A Diameter x pi= circumference B. Circumference x pi= diameter c. Diameter pi= circumference D. Diameter x circumference = pi​

Answers

Answer: A Diameter x pi= circumference

Step-by-step explanation:

The circumference of a circle is given as:

= 2πr

where,

π = pi = 3.14

r = radius

Note that diameter = 2 × radius.

Therefore, circumference = 2πr = πd

Therefore, circumference will be pi multiplied by diameter. The correct option is A.

The correct statement is:

A. Diameter x pi = circumference

please help me figure out what coordinates S is in please

Answers

Answer:

(0, -2)

Step-by-step explanation:

The x- and y-coordinates indicate the position of a point in the 2D coordinate plane relative to the origin. The coordinates are written as an ordered pair of numbers (x, y), where x indicates horizontal position and y indicates vertical position.

Example

The position of the point in the figure below is specified by the ordered pair, (6, 4). 6 is the x-coordinate and 4 is the y-coordinate of the point.

I need help with these

Answers

Given:

The figures of triangles and their mid segments.

To find:

The values of n.

Solution:

Mid-segment theorem: According to this theorem, mid segment of the triangle is a line segment that bisect the two sides of the triangle and parallel to third side, The measure of mid-segment is half of the parallel side.

11.

It is given that:

Length of mid-segment = n+8

Length of parallel side = 6n

Using mid-segment theorem, we get

[tex]n+8=\dfrac{1}{2}(6n)[/tex]

[tex]n+8=3n[/tex]

[tex]8=3n-n[/tex]

[tex]8=2n[/tex]

Divide both side by 2.

[tex]\dfrac{8}{2}=n[/tex]

[tex]4=n[/tex]

Therefore, the value of n is equal to 4.

12.

It is given that:

Length of mid-segment = 5n

Length of parallel side = 8n+10

Using mid-segment theorem, we get

[tex]5n=\dfrac{1}{2}(8n+10)[/tex]

[tex]5n=4n+5[/tex]

[tex]5n-4n=5[/tex]

[tex]n=5[/tex]

Therefore, the value of n is equal to 5.

x = 6 is a solution to the inequality x– 5 < 10

Answers

Step-by-step explanation:

I am not sure what your problem is.

is this one line just a question to you ? is x=6 a solution ?

if that is the case then ... yes, x=6 is a solution to the inequality.

x - 5 < 10

x < 15

so, 6 < 15 is true, therefore, x=6 is a valid solution


need help asap! please!!!!! help

Answers

Answer:

102

Step-by-step explanation:

Answer:

answer: red flower: 20 blue flower: 5 yellow flower: 2

Step-by-step explanation:

2 + 20 × 5 = 102 so 102 is the answer hope that helps


Find the quotient.
12^9/12^3

A) 1227

B) 1212

C)126

D) 123

Answers

Answer:

A) 1227

Step-by-step explanation:

[tex]\frac{12^9}{12^3}=2985984[/tex]

[tex]12^{3}=1728\\and 12^{9}=5159780352[/tex]

0.4567304 x 2.5678093 = ?

Answers

Answer:

1.17279656871

Step-by-step explanation:

Answer:

1.72796569

Step-by-step explanation:

0.4567304 x 2.5678093 = 1.72796569

A polynomial function has a degree of 8. What is the maximum number of turning points?

Answers

Answer:

7

Step-by-step explanation:

To find the maximum number of turning points of any polynomial function, subtract one from the degree.

Since the degree is 8, subtract 1 from this:

8 - 1

= 7

So, the maximum number of turning points is 7.

how to calculate the base area of a square based pyramid​

Answers

Answer:

It is not complicated to derive the formula of the surface area of a square pyramid.

Start with a square pyramid as shown below and call the length of the base s and the height of one triangle l

l is the slant height. It is not for no reason this height is called slant height!

The word slant refers also to something that is oblique or bent, or something that is not vertical or straight up. Basically, anything that is not horizontal or vertical!

The area of the square is s2

The area of one triangle is (s × l)/2

Since there are 4 triangles, the area is 4 × (s × l)/2 = 2 × s × l

Therefore, the surface area, call it SA is:

SA = s2  +  2 × s × l :

Example #1:

Find the surface area of a square pyramid with a base length of 5 cm, and a slant height of 10 cm

SA = s2  +  2 × s × l

SA = 52  +  2 × 5 × 10

SA = 25  +  100

SA = 125 cm2

I need some help please.

Answers

Answer:

[tex](-5,-4)[/tex]

Step-by-step explanation:

A 180 counterclockwise rotation of (5, 4).

The transformation rule is as follows:

[tex](x,y)[/tex] turns into [tex](-x,-y)[/tex].

find the surface area of this figure

Answers

Answer:

427.37 ft2

Step-by-step explanation:

can you see the photo i sent

i hope it can help you

HOLA, I'm being timed :)
Find the value of c that makes x2 + 10x + c a perfect square trinomial
a. –25
b. 10
c. –5
d. 25

thank you <3

Answers

The answer is a hope it helps

Width = 1 ft; height = 20 ft ; length = 5ft

Does anyone know the volume


Need now!

Answers

Answer:

100 cm 3

Step-by-step explanation:

20 x 1 = 20

20 x 5 = 100 cm 3

100 cm 3 is the volume

WILL MARK BRAINLIEST
A certain restaurant sells cups of coffee for $2 and donuts for $1.50. If the restaurant sold a total of 80 items and earned $141.50, how many donuts did the restaurant sell?

Answers

Answer: 37 donuts

Step-by-step explanation:

coffee for 2,

donuts for 1.5

c = coffee

d = donuts

lets make an equation

c*2 + (80-c)*1.5 = 141.5

from this we get:

c= 43.

if c = 43, then d is 80-43 = 37.

they sold 43 coffees, and 37 donuts.

lets check the math

43*2+37*1.5 = 141.5. math checks out

mark me brainlist

Drag numbers to the table so it shows a proportional relationship between x and y.

Answers

Answer:

the second box for y is 9

the third box for x is 2.5

im not sure about the third box for y

The Bar Chart shows the weights of 10 dogs entered in a local dog show.

Which statement is true about this data set?

A. The range is 94 lb.
B. The mean is 35.5 lb.
C. The median is 45.1 lb.
D. The mode is 14 lb.

Answers

B . the mean is 35.5 lb .

Answer:its A. The range is 94 lb.

Step-by-step explanation: i took the Question

n-18=100 can somebody answer​

Answers

Answer:

n = 118

Step-by-step explanation:

Add 18 to both sides of the equation:

n = 100 + 18n = 100 + 18

Add 100 and 18.

n = 118

i need help with negative poimts

Answers

Answer:

What part do you need help with? Is there a specific problem?

Step-by-step explanation:

Please help, no links.

Answers

Answer:

pyothorahas rule is show

I need answer immediately!!!!!

Answers

Answer:

4 PM

Step-by-step explanation:

At 4 PM the temperature reached 68 degrees Fahrenheit??

Answer:

[tex]4\:\text{PM}[/tex]

Step-by-step explanation:

The first point where [tex]y=68[/tex] occurs at [tex]x=4[/tex], hence [tex]\boxed{4\:\text{PM}}[/tex]

Write 1 2/11 as a decimal

Answers

0.27 because if you put it like a whole fraction it would be 3/11 and as a decimal it is 0.27

Answer: 1.18. 18 is repeated.

Explanation is below.

Si consideras como base uno de los rectángulos de dimensiones de 5cm y 3cm ¿cuanto mide la altura de ese prisma?

Answers

Respuesta:

h = V / 15

Explicación paso a paso:

El volumen de un prisma rectangular se calcula usando la relación:

Largo ancho alto

Donde, largo y ancho son la dimensión de la base

Por eso,

Volumen = Base * altura

Volumen = (5 cm * 3 cm) * altura

De la pregunta, no se da el volumen, por lo tanto, tomamos el volumen como V en otro para calcular la altura, h

V = 15h

Divide ambos lados entre 15

V / 15 = 15h / 15

V / 15 = h

The length of a rectangle is 5 metres less than twice the breadth. If the perimeter is 50 meters,find the length and breadth

Answers

S O L U T I O N :

As per the given question, it is stated that the length of a rectangle is 5 m less than twice the breadth.

Assumption : Let us assume the length as "l" and width as "b". So,

[tex] \twoheadrightarrow \quad\sf{ Length =2(Width)-5} [/tex]

[tex] \twoheadrightarrow \quad\sf{ \ell=(2b-5) \; m} [/tex]

Also, we are given that the perimeter of the rectangle is 50 m. Basically, we need to apply here the formula of perimeter of rectangle which will act as a linear equation here.

[tex]\\ \twoheadrightarrow \quad\sf{ Perimeter_{(Rectangle)} = 2(\ell +b) } \\[/tex]

l denotes length b denotes breadth

[tex]\\ \twoheadrightarrow \quad\sf{50= 2(2b-5+b)} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\sf{50= 2(3b-5)} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\sf{50= 6b - 10} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\sf{50+10= 6b} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\sf{60= 6b} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\sf{\cancel{\dfrac{60}{6}}=b} \\[/tex]

[tex]\\ \twoheadrightarrow \quad\underline{\bf{10\; m = Width }} \\[/tex]

Now, finding the length. According to the question,

[tex] \twoheadrightarrow \quad\sf{ \ell=(2b-5) \; m} [/tex]

[tex] \twoheadrightarrow \quad\sf{ \ell=2(10)-5\; m} [/tex]

[tex] \twoheadrightarrow \quad\sf{ \ell=20-5\; m} [/tex]

[tex]\\ \twoheadrightarrow \quad\underline{\bf{15\; m = Length }} \\[/tex]

Therefore, length and breadth of the rectangle is 15 m and 10 m.

solve the system of equations
13х – 6у = 22

x=y+6​

Answers

Answer:

x = -2, y = -8

Step-by-step explanation:

13(y + 6) - 6y = 22

=> 13y + 78 - 6y = 22

=> 7y = -56

=> y = -8

x = -8 + 6

=> x = -2

Suppose the radius of a circle is 3 units What is its circumference

Answers

Answer:

18.8496 units

Step-by-step explanation:

circumfrence = 2*pi*r

plug in 3

c=2*pi*3 = 18.8496 units

Abigail is 8 years older than Cynthia. Twenty years ago Abigail was three times as old as Cynthia
was. How old is each of them now?
Plz explain

Answers

Abigail would be 32 and Cynthia would be 24 now. Twenty years ago, Abigail was 12, and Cynthia was 4. 12 is 3 times as much as 4, and also 4+8=12.

A farmer owns a total of 16 chickens and rabbits.The chickens and rabbits have 54 legs altogether.How many rabbits are there.

Answers

Answer:

27

Step-by-step explanation:

Tama poyan

27+27=54

#Keep on Learning

Answer:

11 rabbits

Step-by-step explanation:

11 x 4 = 44

44 + (5 x 2) = 44 + 10 = 54

Find the value of x.

Answers

Answer:

x = 5

Step-by-step explanation:

TU is a tangent segment with length 6.  RT is a secant segment.

In the circle, the square of the tangent is equal to the product (multiply) of the part of the secant outside the circle and the secant's entire length.

Words don't work well here, do they!

In symbols,  (ST)(RT) = (TU)^2

[tex]4(x+4)=6^2\\4x+16=36\\4x=20\\x=5[/tex]

hello please help i’ll give brainliest

Answers

Answer:

Applied force

Step-by-step explanation:

Please help this is my final

Answers

Answer:

c

Step-by-step explanation:

s

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