A bag has 5 blue marbles, 1 pink marble and 2 red marbles. I draw a blue marble, put it back and draw again. What is the probability that the second marble is blue?
(A) 1/2
(B) 4/7
(C) 5/8
(D) 5/7

Answers

Answer 1

Answer:

C

Step-by-step explanation:

If you do 5+1+2=8 then it has to be out of 8. The only option that is out of 8 is c, and if you have 5 blue then the probability is 5 blue/8 marbles in the bag.

Answer 2

The probability of that second marble is blue is 5/8.

What is probability?

Probability is "possibility that deals with occurrence of random events".

According to the question,

Number of blue marbles = 5

Number of pink marbles = 1

Number of red marbles = 2

Total number of marbles =  5 + 1 + 2 = 8

Formula for Probability P(E) = [tex]\frac{Number of favourable events }{Total number of events}[/tex]

Probability of getting that second marble is blue = 5/8.

Hence, the probability of that second marble is blue is 5/8.

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Related Questions

What is the center of a circle?
What is the radius of the circle?

Answers

Answer:

Center: (-9, -7)

Radius: 5

Step-by-step explanation:

the center would be (-9,-7) the radius would be 5
i did something like this on edunity

graph : f(x) = 2[x] + 1
PLEASEEEE + step by step

Answers

Answer:  

x=1/2

x=-o.5, x=-2

Step-by-step explanation:

To find x intercept/zero, substitue f(x)= 0-0 which gives you 0=2x+1. Then you solve for x to get x=-1/2 which is the answer. x=-o.5, x=-2 is the alterative form. Pls mark as brainlist if right.

help i need answers fasr plzzz

Answers

Answer:

the answer is z<-4 the second graph on the picture

Step-by-step explanation:

-28/7=-4 and because its less than only not less than and equal to it's an open circle

Pls help me if you help me and it’s right I’ll give you 100 points

Answers

Answer:

B

Step-by-step explanation:

Given

3(24) + 7(24) ← factor out 24 from each term

= 24(3 + 7) ← B

= 24(10)

= 240

Answer:

The correct answer is B

Step-by-step explanation:

3(24) + 7(24) ← factor out 24 from each term

= 24(3 + 7) ← B

= 24(10)

= 240

I hope this helps.

Any ball used for sports such as a soccer ball, baseball or volleyball is a_______
A-Cone
B-Sphere
C-Cylinder
D-Triangular prism

Answers

Any ball used for sports such as a soccer ball, baseball or a volleyball is a sphere.

Answer: B-Sphere

Step-by-step explanation: A ball also has another term known as a SPHERE.

Can anybody answer this pls.

Answers

It’s gone be there Celsius of the brain which is that a point

Graph g(x)=5|x-6|+2.

Answers

Here is the graph as requested.

The scale on the map is 1/4 inch=20feet. What is the actual distance if the distance on the map is 48 inches?

Answers

Answer: all you need to do is 48 divided by 1/4 and you will get your answer

Step-by-step explanation: hope. this helps

please help me, i don't really understand it...

Answers

Answer:

376.99 (or 377)

Step-by-step explanation:

r=10

h=6

Lateral surface = 2πrh

2π(10)(6)=376.99

Hope this helps!

Answer:

376.99 or 377

Step-by-step explanation:

Please mark meh brainliest

Mr. linton will read 100 pages a day until he finishes the book. Mr. linton thinks it will take seven days to finish the book. Is Mr. linton correct ? (The book has 900 pages )

Answers

Answer:

No Mr.Linton will not take 7 days to finish the book

Explanation

Since the book has 900 pages, you will have to divide 900 by 100 which equals 9. 9 is the number of days it will take for Mr.Linton to read the book. Therefore he is wrong.

hope this is helpful

Analyze the diagram below and complete the instructions that follow.

Answers

Answer:

c) 5 and 9, 6 and 7

Step-by-step explanation:

The pairs of angles on one side of the transversal but inside the two lines are called Consecutive Interior Angles

Answer:

5 and 9, 6 and 7

Took test

Step-by-step explanation:

Choose yes or no to tell whether there is more than one way to draw a triangle with the given measures



AB= 15 cm, BC=20 cm, angle B=40 degrees



AB=20 cm, AC=15 cm, angle c=40 degrees



BC=10 cm, AB=5 cm, angle A=20 degrees



AC=5 cm, BC=10 cm, AB=14 cm

Answers

Question:

1)  AB = 15 cm, BC = 20 cm, angle B = 40°

2) AB = 20 cm, AC = 15 cm, angle c = 40°

3) BC = 10 cm, AB = 5 cm, angle A = 20°

4) 5 cm, BC = 10 cm, AB = 14 cm

Answer:

1) No: SAS

2) Yes: SSA

3) Yes: SSA

4) No: SSS

Step-by-step explanation:

To answer the question, we note that a well defined triangle or unique provides information for;

a. SSS All three sides

b. Side Angle Side, SAS Two sides and the included angle(the angle between the two sides), such that there is only one way to draw the triangle

c. Angle Side Angle, ASA and

d. Angle Angle Side, AAS

We analyse each option as follows

1) AB = 15 cm, BC = 20 cm, angle B = 40°

No:

The provided information includes two sides and the angle between the two sides, therefore there is only one way to draw the triangle

2) AB = 20 cm, AC = 15 cm, angle c = 40°

Yes

Here the provided information are SSA hence there are more than one way to draw the triangle

3) BC = 10 cm, AB = 5 cm, angle A = 20°

Yes

Here the provided information are Angle Side Side hence there are more than one way to draw the triangle

4) 5 cm, BC = 10 cm, AB = 14 cm

No

Here the provided information is SSS hence, there is only one way to draw the triangle

What substitution should be used to rewrite 6(x + 5)2 + 5(x + 5) – 4 = 0 as a quadratic equation?
- (x+5)
- (x - 5)
Ou-(x + 5)2
u = (x - 5)2

Answers

Answer:

x+5 is replaced

Step-by-step explanation:

6(x + 5)^2 + 5(x + 5) – 4 = 0

Replace x+5 with m

6(m)^2 + 5(m) – 4 = 0

Now this is a quadratic equation

The required substitution is (x + 5) to rewrite 6(x + 5)² + 5(x + 5) - 4 = 0 as a quadratic equation. The correct answer is A. (x+5).

What is a quadratic equation?

The quadratic equation is defined as a function containing the highest power of a variable is two.

The quadratic equation is given as follows:

6(x + 5)² + 5(x + 5) - 4 = 0

Let u = x + 5. Then, we can rewrite the equation 6(x + 5)² + 5(x + 5) - 4 = 0 as:

6u² + 5u - 4 = 0

This is now a quadratic equation in u, which can be solved using the quadratic formula or factoring.

Once we find the solutions for u, we can substitute back u = x + 5 to get the solutions for x.

Therefore, the correct answer is A. (x+5).

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Find the coordinates of the vertices of the figure formed by each system of inequalities. x + y < 9 x - 2y < 12 y < 2x + 3 a. (0, 0), (0, 1), (2, 0) c. (9, 1), (2, 3), (5, 6) b. (10, -1), (-6, -9), (2, 7) d. (0, -1), (2, -1), (3, 6)

Answers

Answer:

b. (10, -1), (-6, -9), (2, 7)

Step-by-step explanation:

One way to solve this problem is by graphing (see attachment). In fact, that actually is the easiest way to do this.

First, graph x + y < 9 (red part on the attachment). To do this, isolate the y so that it's like a regular linear equation: y < -x + 9. Graph the line y = -x + 9 first, and then choose a point either on the left or right of the line to plug in for x and y.

Let's just choose (0, 0), which is on the left of the line: 0 < -0 + 9  ⇒  0 < 9. Since this is a true statement, we know that we should shade the left side of the equation, and not the right side.

Now, graph x - 2y < 12 (blue part on the attachment). It's the same process here as the first inequality. For this one, we find that we also shade to the "left" of the line (it's more "up" than "left", but you get the idea).

Finally, graph y < 2x + 3 (green part on the attachment). Again, it's the same process. For this, we shade to the right.

Now look at the three points that they intersect at: they are (2, 7), (-6, -9), and (10, -1). The answer is thus B.

Step-by-step explanation:

Step 1:  Graph each of the inequalities

x + y < 9

x - 2y < 12

y < 2x + 3

It comes out that the vertices are (2, 7), (10, -1), and (-6, -9)

Answer:  Option B

Agnes heard that as a general rule, she should spend no more than 30% of her take- home pay on rent. If Ange’s take-home pay is $39,600 per year, what is the maximum amount per amount per month that the should spend on rent ?

Answers

Answer:

990

Step-by-step explanation:

The maximum monthly rent payment that should be made is $1990.

What is percentage?

A value or ratio that may be stated as a fraction of 100 is referred to as a percentage in mathematics. If we need to compute a percentage of a number, we should divide it by its whole and then multiply it by 100. The proportion, therefore, refers to a component per hundred. Per 100 is what the term percent signifies. The letter "%" stands for it.

Given, Agnes heard that as a general rule, she should spend no more than 30% of her take-home pay on rent.

Since her salary is $39,600

Thus,

She should not pay rent of more than = 39,600 * 30%

She should not pay rent of more than = 11,880

He maximum rent per month= 11,880/12 = 990

Therefore, the maximum amount per month that she should spend on rent is $990.

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Much appreciated if answered. =)

Eddie earns $45,000 a year. He works 45 hours a week, 50 weeks a year. How much money does Eddie earn per hour?

A.) $20

B.) $45

C.) $50

Answers

Answer is A) $20
50x45= 2250
45,000/2250= 20
:)

Answer:

c

Step-by-step explanation:

I got it right

Classwork for Ms. O'Brien's (Root X
E Decimal/ Fractions Review
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+
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Your answer
1 point
The screen on the iPhone 11s has a base of 51.7mm and a height of
90.39mm. Find the area of the iPhone's screen. *
Your answer

Answers

Answer:

4673 mm²

Step-by-step explanation:

Data

base: 51.7 mm height: 90.39 mm

iPhone's screen is a rectangle. The area of rectangle is calculated as base*height. Replacing with data we get:

Area of rectangle = area of the iPhone's screen = 51.7 mm * 90.39 mm =  4673.163 mm² ≈ 4673 mm²

What is the volume of the rectangular prism?
Vx
cm
cm
5 cm
A
17 14 cm
183 cm
27 7 2 cm²

Answers

Answer:

V = 159 3/8 cm^3

Step-by-step explanation:

V = l*w*h

V = 8 1/2 * 5 * 3 3/4

Change to an improper fraction

V = 17/2 * 5 * 15/4

V =1275/8

Changing back to a mixed number

8 goes into 1275 159 times with 3 left over

V = 159 3/8 cm^3

What is the equation of the vertical line through (2,3)(2,3)left parenthesis, 2, comma, 3, right parenthesis?

Answers

Answer:

X=2

Step-by-step explanation:

Trust me i got it right on Khan Academy

The required equation of vertical line pass through (2, 3) is x = 2.


Equation of the vertical line to be determine which passes through (2,3).


What is a Line??

A line can be defined by a shortest distance between two points is called as a line.

Slope of the vertical line is infinite. i.e. m = 1/0
Here, with point (2,3) equation of the line.
y-3= 1/0 (x-2)
(y-3)0 = x-2
x-2 = 0
x = 2

Thus, the required equation of vertical line pass through (2, 3) is x = 2.

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Which of the labeled points on the number line above could have coordinate - 2.85?
A, B, C, D

Please help!

Answers

Answer: B

Step-by-step explanation:

Since B is closer to 3

i think point B could have coordinate -2.85

Find the volume of the composite solid. Please explain how you got your answer

Answers

Answer:

To find the volume of the composite solid you must learn how to find the surface and the volume of a composite solid, prism, pyramid, cones, cylinders and spheres. In order to find the surface area and the volume

Step-by-step explanation:

Tell me if you still need help.

Hope this helps.

Find the surface area of the pyramid. The side lengths of the base are equal. The surface area is square centimeters.

Answers

Answer:

576.67

Step-by-step explanation:

A=a2+2aa2

4+h2=122+2·12·122

4+172≈576.66615

Answer:

576.67

Step-by-step explanation:

PLEASE HELP THANKS
Choose Yes or No on each one to tell whether the Addition Property of Inequality can be used for each one to solve each statement.

w – 4 > –10

12 ≥ 20x

[tex]\frac{7y}{10}[/tex] ≤ 5.5

–3.25 < x – 9.75

Answers

Answer:

Yes.

Step-by-step explanation:

Find an answer to your question Choose Yes or No to tell whether the Addition Property of Inequality can be used to solve each statement. w – 4 &gt; –10 12 ≥… ... 12 ≥ 20x 7y10 ≤ 5.5 –3.25 < x – 9.75 ... 1. kudzordzifrancis. kudzordzifrancis. punineep. +5. punineep and 5 others ... 7y+10 ≤ 5.5 --->

Answer:

A) yes

B) no, multiplication property of inequality

C) no, division property of inequality

D) yes

Step-by-step explanation:

Veronica has received a $3,000 gift and is looking for a bank to start a savings account. Which option would be the best for her if the current inflation rate is 2.5%?

A. bank that offers 4% interest

B. bank that offers 3% interest

C .bank that offers 2.5% interest

D. bank that offers 3.5% interest

Answers

Answer:

A

Step-by-step explanation:

You are looking for the highest real interest rate, which is the nominal rate minus the inflation rate. With that being said, the lowest interest rate is 2.5%, which wouldn't make her anything. However, the 4% interest rate yields 1.5% real interest, making it the best option.

The best investment option is the option (A), where the interest rate is 4% which is higher than other options.

What is the interest rate?

The amount a lender charges a borrower, expressed as a percentage of the principle, is known as the interest rate.

Given that, the current inflation rate is 2.5%.

Therefore, to make a profitable investment, the interest rate should be more than the inflation rate.

The higher interest rate will give a higher profit.

Therefore, the best investment option is an option (A), where the interest rate is 4% which is higher than other options.

Learn more about the interest rates here:

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What is the special name for the perimeter of a circle

Answers

The name for the perimeter of a circle is the circumference

Find the area of the figure.


A square with sides of 6.1 m


The area equals ____ m2

Answers

Answer:

The area of a square:

[tex]A = 37.21[/tex] [tex]m^2[/tex]

Step-by-step explanation:

The formula to find the area of a square:

[tex]A = a^2[/tex]

Use the given measure for the formula:

[tex]A = 6.1^2[/tex]

-Then, solve:

[tex]A = 6.1^2[/tex]

[tex]A = 37.21[/tex]

So, the area of a square is [tex]37.21[/tex] [tex]m^2[/tex].

So the right answer is 37.21 m^2

Look at the attached picture

Hope it will help you

Good luck on your assignment

A triangle has these coordinates Point A:(1,5)Point B:(1,9)Point C:(8,5)Enter the length of side AC

Answers

Answer:I think the answer is 180 or 360

Step-by-step explanation:

The triangles will always be the same answer even if it looks different.

Graph -27x+18y=54 Help please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

slope : 3/2 Y-intercept : 3  ------------> (0,3) (2,6) are the points

Step-by-step explanation:

X | Y

0 | 3

2 | 6

Given that the discriminant of a quadratic equation is 8, determine the number of real solutions.

Answers

Answer:

There are two real solutions.

Step-by-step explanation:

There are only three possible solutions for the discriminant of a quadratic equation:

1. D < 0

In this case there are no real solutions. The graph does NOT intersect with the x-axis.

2. D = 0

In this case there is exactly one real solution. The graph touches the x-axis in one point, which is called the Top.

3. D > 0

In this case there are two real solutions. The graph intersects the x-axis in two points.

complete the solution of the equation. find the value of y when x equals 4 -3x +9y = -57

Answers

Answer:

y = -5

Step-by-step explanation:

-3x +9y = -57

Let x = 4

-3*4 +9y = -57

-12 +9y = -57

Add 12 to each side

-12+12 +9y = -57+12

9y = -45

Divide each side by 9

9y/9 = -45/9

y = -5

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