A bag contains 4 blue coins and 8 red coins. A coin is removed at random and replaced by three of the other color.
Part 1 out of 3:
What is the probability that the removed coin is blue? Enter your answer as a simplified fraction. The probability that the removed coin is blue is ______.

Answers

Answer 1

Answer:

33.3%

Step-by-step explanation:

In total there are 12 coins, those are 4 blue ones and 8 red ones. If we think of these as fractioins we get the following:

[tex]\frac{4}{12}[/tex] * [tex]\frac{100}{1}[/tex] = [tex]\frac{400}{12}[/tex] = 33.3%

The probability that the removed coin is blue is 33.3%.

Answer 2
The awnser if not mistakened is 33.3%

Related Questions

can yall please help me with this question

Answers

it’s 0.6 repeating , hope this helps

Answer:

2/3.

Step-by-step explanation:

Given equation:

2/9 ÷ 1/3

Simplify, then solve:

2/9 ÷ 1/3= 2/9 ÷ 3/1= 2/9 * 3= 6/9

Simplify:

2/3 = 6/9.

Your answer is 2/3 or 6/9.

Mind lending a hand?

Answers

Answer:

3-  Answer is D or 35

4- Answer is B 5,9,6

Step-by-step explanation:

i need help with this
Q2

Answers

Answer:

9/4

Step-by-step explanation:

9/4 if you calculated and you do it step by step it should be like this

A certain type of bacteria reproduces so that after x hours there are 15x cells. What single power represents he size relationship between the cell population after 24 hours and the cell population after 8 hours? Show your work

Answers

Answer:

let's say cells is c and hours are x that means there are 15 cells each hour. the equation for that is c=15x

after 08 hours the cells have multiplied 8 times their original size. meaning that the equation changes to this: c=15x          x=8    c= 15(8)

x equals 8 at that time.. literally

ok the cells have multiplied and now there are 120 cells in total

then after one day the cells have multiplied over 12 times afterwards. now x equals 24. the equation would look a little like this:

c=15x      x=24    c= 15(24)

there are 360 cells now.

Explain in your own words the relationship between x=8 with x=24 in the equation.

NEED ANSWER REALLY FAST!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

There is no question what is the question

Item cost $490 before tax, and the sales tax is $24.50

Find the sales tax rate right your answer as a percentage


please help me :’)

Answers

Answer: 5%

Step-by-step explanation:

Item Cost - $490

Tax - $24.50

Tax/Price = 24.50/490.00 = 0.05

0.05 *100 (for percent) = 5%

Check your work:

490.00*0.05 = 24.50

Kate has a new beaded necklace. 25% of the 76 beads on Kate's necklace are blue. How many blue beads are there on Kate's necklace?

Answers

0.25x76=19 blue beads which are on Kate’s necklace.
19 beads pls like I need points

PLEASE HELP THIS IS FOR NJHS!!!
what does scholarship mean to you? (must use at least 1 paragraph

Answers

A scholarship is an opportunity of a lifetime for someone who might be otherwise unable to attend a college or university. For me it is motivation to strive in my education process and always reach for higher goals. It is an ability for me to achieve my dreams and it is awarded to me through my ambition, heart, and motivation.

(you might want to tweak this to fit you and make it longer but this is the best i got)

I think a scholarship means an opportunity for people to earn an education. Without assistance from an outside source, students may have trouble paying for the degree. Scholarships help students have more time to focus on their studies. For many students, the stresses of working make it difficult for them to graduate on time, or graduate with the high grades they have the potential to achieve. For other students, the work/study life is unsustainable, and they discontinue their studies altogether. And I think scholarships can fill the gap. I feel with the assistance it can support students who fall in the gap between high and low-income levels.

HELP ASAP
Ayanna plans to bake 3 types of cookies to take to a party. She needs to be sure that she has enough flour. The chocolate cookies use
1

3
4
cups of flour, the sugar cookies use
3

2
3
cups of flour, and the oatmeal spice cookies require
1

7
8
cups of flour. Which is the BEST estimate of the total amount of flour she will need?

Answers

Answer:

she will need about

7 and 1/3 cups of flour

Step-by-step explanation:

1 3/4+ 3 2/3 +1 7/8= 7.29 rounded off would be about 7 1/3 cups of flour

FAST ANSWER PLEASE!!!!!!!!!!!!!!!!!
There are 15 violinists in the orchestra this year. Next year, two violinists will leave and some new violinists will join the orchestra. If v is the number of violinists who will join the orchestra, write an expression to represent the number of violinists in the orchestra next year.

Answers

Answer:

15 - 2 + v

Step-by-step explanation:

i'm not to sure i asked my friend and she's very smart so i think thats ir

*sorry if its wrong*

Answer:

15-2+V=total number of violinists in the orchestra next year

These base-10 blocks model 68.



Which answer shows how to correctly rearrange the blocks to find the quotient 68 ÷ 7?


Seven groups of 9 ones cubes. To the right of these are 5 ones cubes.


Six groups of 1 tens rod and 1 ones cube. To the right of these are 2 ones cubes.


Nine groups of 7 ones cubes. To the right of these are 2 ones cubes.

Answers

Answer:

68 ÷ 7 = 9.714

−      

GIVING BRAINLIEST FOR BEST ANSWER!
Which of the following is true?
A) Three and two fifths plus four and two sevenths equals seven and four twelves
B) Two and five eighths plus six and one sixth equals eight and six twenty fourths
C) Four and eight tenths plus five and two sixths equals ten and eight sixtieths
D) Six and seven twelves plus three and nineteen twenty fourths equals nine and nine twenty fourths

Answers

Answer:

c

Step-by-step explanation:

Answer:

four and eight tenths plus five and two-sixths equals ten and eight sixtieths

Step-by-step explanation:

Explain why you cannot factor the trinomial x(to the power of 2)−12x+6

Answers

Answer:

See below

Step-by-step explanation:

You cannot find two whole number integers that give a sum of -12 and a product of 6.

-1 + -11 = -12, but (-1)(-11) = 11, which isn't 6

-2 + -10 = -12, but (-2)(-10) = 20, which isn't 6

...and so on...

x² - 12x + 6

This is in the form of ax² + bx + c.

We can not factorize because b < ac.

What is an expression?

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

x² - 12x + 6

This is in the form of ax² + bx + c.

Middle-term factorization.

We can not use middle-term factorization because b < ac.

Where a = 1, b = -12 and c = 6

Now,

Using determinant.

x² - 12x + 6

It is in the form of ax² + bx + c

a = 1, b = -12, and x = 6

So,

x = -b ± √(b² - 4ac) / 2a

x = 12 ± √(144 - 24) / 2

x = 12 ± √120 / 2

x = 12 ± 2√30 / 2

x = 6  ± √30

x = 6 + √30 and x = 6 - √30

Thus,

The solutions are x = 6 + √30 and x = 6 - √30.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

The 7th grade basketball team won 9 out of 15 games. What is the ratio of losses to wins?

Answers

3:5 is the ratio i’m pretty sure

Answer:

The ratio of losses to wins is 6:9 or if simplified 3:2

Step-by-step explanation:

The 7th grade basketball team played 15 games in total. If they had 9 out of those 15 games they lost the other 6. So, the ratio of losses to wins is 6:9. Losses goes first because its first in the word problem. To simplify a ratio find the number they both divide into. In this case its 3. 6 divided by 3 is 2. And 9 divided by 3 is 3. So in simplest form the answer is 3:2 :)

Please help I don’t get this math plz explain ;w;

Answers

i believe its 3 because the range is the distance between the highest and lowest number

Answer:

B(3)

Step-by-step explanation:

i believe its 3 because the range is the distance between the highest and lowest number

Ye Li drew a quadrilateral that is both a rectangle and a rhombus. Name the quadrilateral and describe it using the properties of sides and angles.

Answers

Answer:

The quadrilateral is a Square. A square is a type of rectangle and it can also be called a rhombus.

Step-by-step explanation:

A square is a smaller rectangle and if you turn a square, it will look like a rhombus.

HELP ILL GIVE BRAINLIEST

Answers

Answers:

1.) C and F - I simply found the volume of all of the prisms.

2.) 210 cubic cm - I multiplied 5x6x7 and got a volume of 210 cubic cm.

3.) C.) Volume - You were given the length, width, and height.

4.) B, C, E

5.) C, D, E

6.) A, C, E - I multiplied everything to see what match the volume of 240.

7.) 400 cubic inches - Multiply them all.

8.) 180 cubic feet - 8x3x5 + 4x5x3

9.) A.) Length A- 5ft  Width B- 4ft B.) 104 cubic feet

10.) 300 cubic inches - 8x3x5 + 12x3x5

Side note:

Volume is calculated by multiplying length, width, and height. Your work should be multiplying those. Ask me any questions! Brainliest would be greatly appreciated.

I hope this helped!

Good luck <3

Find the value of x. Then, classify the triangle (one name for its side lengths, one name for its angles).

Answers

20 and acute

ive worked it out on the attachment/picture im not sure if its right but its a guess

Answer:

x = 10

scalene, obtuse

Step-by-step explanation:

Sum of interior angles of a triangle = 180°

⇒ 10x + 8 + 52 + 2x = 180

⇒ 12x + 60 = 180

⇒ 12x = 120

⇒ x = 10

∠A = 52°

∠B = (10 x 10) + 8 = 108°

∠C = 2 x 10 = 20°

Scalene:   no equal sides (and no equal angles)

Obtuse:   one of the interior angles is bigger than 90°

Multiply (2.0 ⋅ 10^−4) ⋅ (3.1 ⋅ 10^−20). Express the answer in scientific notation. (1 point)

6.2 ⋅ 10−80
6.2 ⋅ 10−24
6.2 ⋅ 1024
6.2 ⋅ 1080

Answers

2,0 * 10⁻⁴) * (3,1 *10⁻²⁰) = the order of multiplication factors not relevant 2,0 * 3,1 * 10⁻⁴ * 10 ⁻²⁰ = 6,2 *10 ⁻⁴ ⁺⁽⁻²⁰⁾
= 6,2⁻²⁴

GIVING BRAINLIEST FOR BEST ANSWER!
Solve three and two fifths plus three and four sixths.
A) Six and six thirtieths
B) Seven and two thirtieths
C) Seven and six elevenths
D) Nine and two thirtieths

Answers

Answer:

7 1/15

Step-by-step explanation:

Rewriting our equation with parts separated

=3+2/5+3+4/6

Solving the whole number parts

3+3=6

Solving the fraction parts

2/5+4/6=?

Find the LCD of 2/5 and 4/6 and rewrite to solve with the equivalent fractions.

LCD = 30

12/30+20/30=32/30

Reducing the fraction part, 32/30,

32/30=16/15

Simplifying the fraction part, 16/15,

16/15=1 1/15

Combining the whole and fraction parts

6+1+1/15=7 1/15

Answer:

6 32/30 or 7 2/30 or 7 1/15

Step-by-step explanation:

three and two fifths = 3 2/5

+

three and four sixths. = 3 4/6

--------------------------------------------------

 3 2/5   ---->   3  12/30

+ 3 4/6 ---->   + 3 20/30

---------------    -----------------

?????????          6 32/30 or 7 2/30

The LCM would be 30.

2/5 = 12/30

4/6 = 20/30

-----------------

7 2/30 could also be 7 1/15

Solve the system of equations using the elimination method.

4x+3y=16
x=-3y+13

Answers

Step by Step Solution
More Icon
System of Linear Equations entered :

[1] -4x - 3y = -7
[2] 16x - 3y = 13
Graphic Representation of the Equations :

-3y - 4x = -7 -3y + 16x = 13



Solve by Substitution :

// Solve equation [2] for the variable x


[2] 16x = 3y + 13

[2] x = 3y/16 + 13/16
// Plug this in for variable x in equation [1]

[1] -4•(3y/16+13/16) - 3y = -7
[1] - 15y/4 = -15/4
[1] - 15y = -15
// Solve equation [1] for the variable y


[1] 15y = 15

[1] y = 1
// By now we know this much :

x = 3y/16+13/16
y = 1
// Use the y value to solve for x

x = (3/16)(1)+13/16 = 1
Solution :
{x,y} = {1,1}

Answer:

 x=1   y=4

Step-by-step explanation:

1.  4x+3y=16

   x=-3y+13

2. 4x+3y=16

    x+3y=13

3.  4x+3y=16

     -x-3y=-13

4.  3x=3

5.   x=1

6. (1)=-3y+13

7.  1-13=-3y

8.   -12=-3y

9.    y=4

Oliver has 5 pieces of string that are each 4 2/12 feet long. Destiny has 4 pieces of string that are each 5 14/16 feet long. Use an estimation strategy to determine who has the most string. Choose the name and number to complete the statement. Choose..(Oliver or Destiny) is estimated to have Choose...(1 through 10) more feet of string.​

Answers

Answer:

Destiny is estimated to have around 4 more feet of string.

Step-by-step explanation:

Oliver:

4 2/12 is rounded to 4.

5x4=20.

Destiny:

5 14/16 is rounded to 6.

4x6=24.

20 is less than 24. So Destiny has more string

24-20=4. Destiny has around 4 more feet of string.

Destiny is estimated to have 4 more feet of string.​

Step-by-step explanation:

GIVING BRAINLIEST FOR BEST ANSWER!
Solve two eighths times four fifths.
A) six fortieths
B) eight fortieths
C) six thirteenths
D) eight thirteenths

Answers

Answer:

B

Step-by-step explanation:

I am so sorry, but I have no way to explain this answer, but it is not randomly picked

It's B
Because you can multiply across the numerator and denominator.
2 4 8
—- x —- = —-
8 5 40
2•4=8
8•5=40

To the nearest hundredth, what is the measure of DE¯¯¯¯¯?
PLEASE HELP!!!!!!!



1.55


4.69


14.83


17.09

Answers

Answer:

14.83

Step-by-step explanation:

We can use the Pythagorean theorem to solve the question

a^2 + b^2 = c^2 where a and b are the legs and c is the hypotenuse

6^2 + DE ^2 = 16^2

36+ DE ^2 = 256

Subtract 36 from each side

DE ^2 = 256-36

DE ^2 = 220

Taking the square root of each side

sqrt( DE^2) = sqrt(160)

DE =14.83239697

Rounding to the nearest hundredth

DE =14.83

14.83 is the answer buddy

Please help me out with this

Answers

Answer:

12

Step-by-step explanation:

Find the mean, you need to add up all the numbers and divide by how many there are.

Woodborough ages total 320, so divide that by 20 entries is mean of 16.

Parkville ages total 560, divided by 20 is a mean of 28.

28-16=12

12 or twelve sorry if I’m wrong

If Krista wants the pen to be four times the area it is now
(5 feet long by 4 21 feet wide), what are two ways she could change
the length and/or width to give her that new area? What would the new area be?

Answers

multiply length or width by 4

find the x helpp pleaseee

Answers

you can solve this using pythagoras theorem which states that the sum of the square of the lengths of the sides adjacent to the right angle is equal to the square of the length of ypotenuse (hypotenuse is the longest side which is opposite to right angle)

( the attached image will help you understand the theorem better)

so

20² + 15² = x²

400 + 225 = x²

625 = x²

√625 = x

25 = x

X=25













Have a great day/night :)

IM BEGGING YOU PLS JUST PLS PLS PLS HELP

Answers

Answer:

120

Step-by-step explanation:

Since ABC is an equilateral triangle each <=60

Now Givin ac=cd so <cda

Worth 55 points + Brainliest to the person with the best answer
Question: Which unit rate corresponds to the proportional relationship shown in the graph? Drag and drop the answer into the box to match the graph with its rate.

Answer choices: (1) 1/5 cm/s (2)1/4 cm/s (3) 4/5 cm/s (4)5/4 cm/s

Answers

Answer:

The answer is the 3rd option...I hope I'm right

If I'm right then pls mark me as BRAINLIST will u? thanks :)

GIVING BRAINLIEST FOR BEST ANSWER!
Solve two times five eighths.
Leave your answer as an improper fraction.
A) Seven sixteenths
B) Ten sixteenths
C) Seven eighths
D) Ten eighths

Answers

Answer:

D

Step-by-step explanation:

two times five eigths would be 1.25. Or 1 1/4 or 5/4. If you times both the denominator and numerator by two, you would get 10/8. 18/8=1.25

Answer:

10/8 or 1 2/8 ( mixed number )

Step-by-step explanation:

First, turn the two into 2/1 and then multiply

2/1 by 5/8

start by multiplying

2 x 5 =

which is equal to 10 and you keep 8 the same because 1 x 8 is 8

then you get your answer of 10/8

But if you want it to be a  mixed number then the final answer will be

= 1 2/8 ( mixed number )

Please mark me as branliest

Hope this helps!!

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