There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is not replaced.
Another marble is taken at random.
What is the probability of getting exactly 1 red?

Answers

Answer 1

Answer:

5/9

Step-by-step explanation:

There are 4 blue, 5 red and total of 9 marbles.

If two marbles are taken and we are looking for exactly one red, then it is:

red, then blue or blue, then red

Find the probability of each case:

P(r, b) = 5/9*4/8 = 5/18P(b, r) = 4/9*5/8 = 5/18

Probability of exactly one red:

P = 5/18*2 = 5/9

Related Questions

help asap!
nonsense-report
answer-brainly

Answers

Hello there !

I will be glad to help you since I already studied this!

So,  the angles that will always be equal to each other formed by a transversal even in solving equations are, corresponding angles, alternative interior, and alternative exterior. Refer to the attachment for visual understanding

Vocabularies: Transversal -  transversal is a line that intersects two or more other (often parallel ) lines.

Include to this there are consecutive interior angles and for a tip, for example, you see an equation with consecutive angles add the two angles and make them equal to 180 degrees in most cases.

Depending on your question they may give you angles with same lines on them so which means in most cases they are equal even if they don't seem equal

I forgot to inform you about vertical angles!

they are also congruent..refer to the attachment too

Supplementary angles are on a straight line.... AND equal to a sum of  180 degrees.. refer to the attachment as well

Answers:

1.  Yes - because they are vertical angles

2. No because none of the rules apply so it's not congruent

3. Yes- they are congruent

4. No because none of the rules apply...

5. No-No because they aren't adjacent and  adjacent angles add up to 180 degrees(Tip: adjacent angles are close to each other almost on the same side)

6. No- they are corresponding... they do now add up to 180 degrees

7. No

Next page      

Answer:

Refer to the other answer attachment please study the rules!

I Hope i helped!

If i made a mistake tell me cause no one is perfect but i think most of them are correct!

....................................................................................................................

Please help me solve this problem ASAP

Answers

Answer:

Quadrant 2

Step-by-step explanation:

A 90 °counterclockwise rotation, rotates the triangle left one quadrant. Currently the triangle is in quadrant 3.

Answer:

Question 9 right? Well then it would be in quadrant IV

Step-by-step explanation:

Since it is just 90 degrees counterclockwise it would go to the fouth quadrant.

Help help pls psl someone help

Answers

Answer:

i have no idea

Step-by-step explanation:

i actually dont know but thnks for the points BTW

In a certain clothing store, 3 shirts and 5 ties cost $60, and 2 shirts and 3 ties cost $39. What is the cost of each shirt? If s = the cost of a shirt and t = the cost of a tie, which system of equations represents the problem? 3s 5t = 60 and 2s 3t = 39 s t = 60 and 5s 8t = 99 3t 5s = 60 and 2t 3s = 39.

Answers

Answer:

ties cost $3

shirts cost $15

Step-by-step explanation:

s=shirts

t = ties

3 shirts and 5 ties cost $60:

3s+5t=60

2 shirts and 3 ties cost $39:

2s+3t=39

−2(3s+5t=60)

3(2s+3t=39)

−6s−10t=−120

6s+9t=117

add equations together:

−t = −3

t = 3

so ties cost $3, use either of the original equations to solve the price of shirts:

2s+3⋅(3)=392

s+9=392s=30

s=15

so shirts cost $15

Answer:

3s + 5t = 60 and 2s + 3t = 39

Step-by-step explanation:

Can anyone help please

Answers

Answer:

7

Step-by-step explanation:

love is = 4, because love + love = 8 meaning its 4+4

heart is = 5, because heart - 4(love) = 1

bird is = 3, because bear is = 9 since 5(heart) + 4(love) is bear, and 3 birds make  a bear.

Answer:

17

8 ÷ 2 = 4. love = 4.

heart - 4 = 1. heart = 5.

love 4 + heart 5 =9. bear =9

9÷3=3. birds = 3.

How many ounces are in 2 1/4 pounds?

Answers

Answer:

36 ounces

Step-by-step explanation:

1 lb = 16oz

So just multiply 2 lb by 16 to get 32.

Then you can multiply 16 by 0.25 (a.k.a 1/4) OR divide 16 by 4

You get 4 ounces

Finally, add 32 and 4 to get your total of 36 ounces.

36 ounces.
1 pound= 16 ounces
1/4 pound= 4 ounces
16+16=32
32+4=36
36

help me please thank yo

Answers

Answer:

10*g

Step-by-step explanation:

How many golf balls were in each package?

10 packages

g =golf balls

The balls came in the 10 packages, we don't know how many there are so we use g as a substitute. Therefore being 10*g.

Ex:

lets assume there is 5 golf balls in each package and there is a total of 10 packages. 10*5=50 and if you count each ball it would be the same 5,10,15,20,25,30,35,40,45,50 balls in each. 10*5= 10*g. Same thing except I added a number making it a equation.

Which amount has the greatest value in Canadian dollars?
US$15
€11
£10

Answers

Answer:

US$15

Step-by-step explanation:

US$15 = 19.15 (Canadian)

€11 = 15.91 (Canadian)

£10 = 17.35 (Canadian)

______________________

$1 in the US (US) is $1.28 in Canada

$1 in Euros (€) is $1.45 in Canada

$1 in the UK (£) is $1.73 in Canada

Describe the vector that translates DEF to D’E’F’.


A. (-4, -3)
B. (3, 4)
C. (4, 3)
D. (-3, -4)

Answers

Answer:

(-3 , -4)

Step-by-step explanation:

Vector translation: graph slide without rotation on the coordinate plane

Please help me with this please actually help me please and thank you

Answers

Answer:

y=3x-1

y=3x+4

this has no solutions from looking at this we can see that the slope is the same so thats means that these are parell and will never cross and will never intersecet

another way to look at this is if we look at these equation

so we now that y=y so

3x-1=3x+4

+1

3x=3x+5

-3x

0=5

wait at minute this makes no sense 0 doesn't equal 5 so

no solution

Hope This Helps!!!

A quadrilateral is shown. One pair of opposite sides have lengths of 10 inches and (x + 2) inches. The other pair of opposite sides have lengths (x + 5) inches and (2 x minus 3) inches. Based on the measures shown, could the figure be a parallelogram? 1.Yes, one pair of opposite sides could measure 10 in., and the other pair could measure 13 in. 2.Yes, one pair of opposite sides could measure 10 in., and the other pair could measure 8 in. 3.No, there are three different values for x when each expression is set equal to 10. 4.No, the value of x that makes one pair of sides congruent does not make the other pair of sides congruent.

Answers

Sides given by

10x+2x+52x+3

Opposite sides must be equal

Let's check once

[tex]\\ \tt\hookrightarrow x+5=2x+3\implies x=2[/tex]

Find sides now

10in2+2=4in2+5=7in2(2)+3=4+3=7in

One pair of opposite sides are equal but others not .

It's a trapezium.

Answer:

1. Yes, one pair of opposite sides could measure 10 in., and the other pair could measure 13 in.

Step-by-step explanation:

The opposite pairs are:

1)

10 in with x + 2 inIt makes:x =+2 = 10 ⇒ x = 8 and both sides 10 in

2)

x + 5 with 2x - 3

It makes:

2x - 3 = x + 52x - x = 5 + 3x = 8

The sides are:

8 + 5 = 13 and2*8 - 5 = 13 in

Correct answer choice is 1)

What is the constant of proportionality for the relationship shown in this table? PLEAAASE I WILL MAKE U BRAINLIEST​

Answers

Answer: 3

Step-by-step explanation:

Divide the x numbers by 3 to then get the y numbers

Example: 3 divided by 1 is 3, 6 divided by 2 is 3, and it goes on!

once again the final answer is 3

hope this helps!

A garden is going to be built in the city park in the shape of a parallelogram, with a rectangular walkway
running through it. The garden region is shown in the following figure. Find the area of the garden region by
finding the areas of the individual shapes shown in the figure.
78 ft
72 ft
30 ft
20 ft
Answer

Answers

Answer:

7,456 im only 9 but i think it's right.

Step-by-step explanation:

Answer:  The answer is 7,456!

Step-by-step explanation: 78 x 78 + 30 x 30 + 20 times 20 + 72 equals to 7456!

3.2x + 7.9 + 8.2 + 6.7x
Simplify the expressions. (not equations!)
Please help ASAP.

Answers

Answer:

9.9x + 16.1

Step-by-step explanation:

SImplify using like terms

Simplify:

3.2x + 7.9 + 8.2 + 6.7x3.2x + 6.7x + 7.9 + 8.29.9x + 16.1

-Chetan K

Which expression is equivalent to (7x+9y)2

Answers

Answer:

[tex]49x^2+126xy+81y^2[/tex]

Step-by-step explanation:

Use the square of a binomial theorem

[tex](a+b)^2[/tex]= [tex]a^2+2ab+b^2[/tex]

Now expand the given equation:

[tex](7x+9y)^2=49x^2+126xy+81y^2[/tex]

Hope this helps :)

Have a great day!

PLEASE ANSWER WILL GIVE BRAINLIEST!!!

Find the length of the three missing sides in the rhombus below.

Answers

Answer:

48

Step-by-step explanation:

All of the sides are 48 because a rhombus has equal sides.

The measure of y is 48.

What are Properties of Rhombus?The lengths of all four sides are equal.The two opposite sides are parallel.Angles opposite each other are equal.Diagonals intersect at right angles, or 90 degrees.The diagonals of a rhombus cut through its opposite angles.The total of two neighboring angles, i.e., 180°, is supplementary.

Given:

As, we know that Rhombus resemble property of Square which has all sides Equal.

Then, the four sides of Rhombus are also Equal.

Then, x=z and y= 48.

Hence, the measure of y is 48.

Learn more about Rhombus here:

https://brainly.com/question/27870968

#SPJ2

26, 54, 38, 65, 58, 35, 52, 43, 55, 41, 61

Question
What is the range of the set of data?

Answers

Answer:

range = 39

Step-by-step explanation:

The range is the difference between the largest value in the data set and the smallest value.

range = 65 - 26 = 39

Answer:

35

Step-by-step explanation:

26, 35, 38, 41, 43, 52, 54, 55, 58,61

The biggest number minus the smallest number

61- 26

35

Brett's fish tank can hold up to 10.5 gallons of water before it overflows. Brett has poured 9 gallons of water into his fish tank so far.

Let x represent how many more gallons of water Brett can pour into his fish tank. Which inequality describes the problem?

Answers

Answer:

x=1.5

Step-by-step explanation:

If f(1) = 0, what are all the roots of the function f (x) = x cubed 3 x squared minus x minus 3? Use the Remainder Theorem.

Answers

Remainder theorem tells about the remainder of division of a polynomial with x - a. The roots of given function are: 1, -1, -3

What is remainder theorem for polynomials?

If there is a polynomial p(x), and a constant number 'a', then

[tex]\dfrac{p(x)}{(x-a)} = g(x) + p(a)[/tex]

where g(x) is a factor of p(x)

For the given case, we've got:

[tex]f(x) = x^3 + 3x^2 -x - 3[/tex]

and

f(1) = 0

Thus, for a = 1, from remainder theorem, we get:

[tex]\dfrac{p(x)}{(x-a)} = g(x) + p(a)\\\\\dfrac{f(x)}{(x-1)} = g(x) + f(1)\\\\\dfrac{x^3 + 3x^2 - x - 3}{(x-1)} = g(x) + 0\\\\ \dfrac{x^2(x+3) -1(x+3)}{x-1} = \dfrac{(x^2-1)(x+3)}{(x-1)} = g(x)\\\\(x+1)(x+3) = g(x)[/tex]

Thus, the other factor of f(x) is g(x) = (x+1)(x+3)

And we have:

[tex]\dfrac{f(x)}{x-1} = g(x)\\\\f(x) = (x+1)(x+3)(x-1)[/tex]

Putting it equal to 0, we get:

[tex]f(x) = 0\\(x+1)(x+3)(x-1) = 0\\x = 1, -1, -3[/tex]

Thus,

The roots of given function are: 1, -1, -3

Learn more about polynomial remainder theorem here:

https://brainly.com/question/10488065

Answer:

A

Step-by-step explanation:

got it right on Edge 1943 whilst fighting the German Forces in Northern Italy while my friends were on the beaches of Normandy.

I need help!
f(x)=-3x+6/4x-8

Answers

Answer:

same

Step-by-step explanation:

4. In one week, Latrina received 18 snickers and 8 butterfingers
What is the ratio of butterfingers to snickers?

Answers

4:9
Butterfingers: 8
Snickers: 18
Create ratio 8:18
Simplify by dividing both by 2

what is [tex]4\sqrt{16}[/tex]?

Answers

The square root of 16 is 4, so 4 times 4 equals 16

Your answer is 16 :)

I NEED HELP PLZ ASAP , I AM SO STUCK ON THIS.

Answers

Function

d. 4f(t)

=4(t²+9)

=4t²+36

e. (f(t))²+8

=(t²+9)² + 8

= t⁴+18t²+81+8

= t⁴+18t²+89

Trevor earns $7. 80 an hour take home pay and works 20 hours each week. Trevor wants to buy a new laptop computer to take to college that costs $780. How many weeks will it take for Trevor to achieve his goal? a. 4 weeks b. 5 weeks c. 6 weeks d. 7 weeks Please select the best answer from the choices provided A B C D.

Answers

Answer:

5 weeks

Step-by-step explanation:

[tex]7.8*20x=780[/tex]

[tex]156x=780[/tex]

[tex]\frac{156x}{156}=\frac{780}{156}[/tex]

[tex]x= 5[/tex]

Hence, the correct answer is 5 weeks.

[RevyBreeze]

Two trains are 500 miles apart and traveling toward each other one train travels 20 mph than the other and after two hours the trains are 300 miles apart find the speed of the faster train


pls help!

Answers

Answer:

60 mph

Step-by-step explanation:

We calculate the combined distance travelled by the two trains in two hours.

As they were 500 miles apart at first, and 300 miles apart after, they have travelled 200 miles together.

I think the question means "one train travels 20 mph faster than the other".

Say the faster train has speed x mph. Then the slower has speed x - 20 mph.

Now, the combined distance travelled in 2 hrs is 2 * (x + x - 20) = 200

2x - 20 = 100

2x = 120

x = 60 mph

An app brought in $2 million in revenue before giving 10% of its revenue to pay for the reward prizes. How much revenue did the app earn the store after paying for the reward prizes?

Answers

0.10x2000000=200000 so then 2000000-200000=1800000

Answer:

$1,800,000 dollars

Step-by-step explanation:

Given the following question:

10% of 2,000,000

An app brought in $2 million in revenue before giving 10% of that revenue to pay for prizes. We need to find how much revenue did the app earn AFTER the store paid for the reward prizes.

[tex]\frac{10\times2000000}{100} =10\times2000000=20000000\div100=200000[/tex]
10% of 2 million is 200,000.
[tex]2000000-200000=1800000[/tex]

The app earned "$1.8 million" after paying for the reward prizes.

Hope this helps.

I need help in this question

Answers

Answer:

1a) a= -10

b) b= -5

c) c= -1068

d) d= -1000

2a) a and c

b) b and b

c) c and a

d) d and a

Step-by-step explanation:

Please Helppppppppppp

Answers

Answer:

The width of the actual pool is 12 meters

Step-by-step explanation:

You can put Kiara's scale into a ratio or fraction to help visualize it better: 13/6. Now, let's put what we do know for the other ratio into a fraction. we know that the pool is 26 centimeters wide, and since the 26 matches with the 13, that goes in the numerater. since we don't know the denominator, we can just put 26/x (you can use whatever letter you like but I'll use x here)

So in order to get 13/6 to 26/x, we need to find how to figure out what we are doing to the original fraction. Since 13 x 2= 26, it looks like we are multiplying the ratios by 2. Now that we know that, we can multiply the denominator (6) by 2 to equal 12, our answer.

Hope this helps :)    

The climate in which Jonah lives is mild all year long except during the hotter summer months. For 3 months out of the year, Jonah needs to use 4 portable fans to cool his home. If the electricity to use one fan costs 1 cent per hour and each fan is on for about 96 hours per month, what is his total electricity cost for the fans during one year? a. $6. 72 b. $3. 84 c. $11. 52 d. $2. 88 Please select the best answer from the choices provided A B C D.

Answers

Using proportions, it is found that his total electricity cost for the fans during one year is given by:

b. $3.84

What is a proportion?

A proportion is a fraction of a total amount.

In this problem, for 3 months, he uses 4 portable fans, and each fan is on for about 96 hours per month, hence the total number of hours he uses it is:

4 x 96 = 384 hours.

The cost is one one cent per hour, hence:

$0.01 x 384 = $3.84.

Which means that the total cost is of $3.84, and option b is correct.

More can be learned about proportions at https://brainly.com/question/24372153

The menendez family paid $45 for a meal at a restaurant.They left a tip that was 20% of the cost of the meal.How much was the tip

Answers

Answer:

$9

Step-by-step explanation:

20% is equal to 1/5. Multiply $45 by 1/5 to get $9

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