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:

im not sure but this is just a guess (please keep it in mind)

Step-by-step explanation:

4+5= 9 marbles all together

9-1= 8

1 in 8? or 1 in 9

this is becuase we dont know if the one that was taken out randomly first wasnt a red or not but then i could be wrong and the fact if it was red or blue in the first place might not even matter. it really depends.


Related Questions

Pl help its for a grade

Answers

Answer:

85

Step-by-step explanation:

PLEASE HELP ITS TIMED!!!
Which is greater -1.9 or -2 1/9

Answers

Answer:

-1.9

Step-by-step explanation:

A cookie recipe has 3 eggs for
every 1 dozen cookies.

How many eggs are in 3 dozen cookies?

Answers

Answer:

9 eggs

Step-by-step explanation:

1 dozen = 3 eggs

2 dozens = 6 eggs

3 dozens = 9 eggs

What is the distance between the points (7, 8) and (-8, 0) on a coordinate grid?

Answers

Answer:

17

Step-by-step explanation:

The answer is for your question is 17

There are 14 girls and 12 boys in a class. What is the ratio of girls to students?

Answers

Answer:

7:13

Step-by-step explanation:

There are 14 girls and 12 boys, so there are 26 students in total. Since we are looking for the ratio of girls to students, the ratio will be 14:26. To simplify it, we will divide 14 and 26 by their greatest common factor: 2. We will get the ratio of 7:13.

I hope this helped! :)

Solve please....................

Answers

I think -3.50 but not sure

Answer:

-5/2÷5/7

change to multiplication

-5/2×7/5

reduce the numbers of the greatest common factor of 5

-1/2×7

calculate the product

-1/2×7

the answer is -7/2

if I'm wrong sorry I used a math app to find the answer

Which two whole numbers does 27/4 lie between?

Answers

Answer:

6 and 7

Step-by-step explanation:

27 divided by 4 equals 6.75 and that number is in between 6 and 7

6 and 7 I think should be the answer

factor each expression

24x +8y


HELP ASAP
WRONG ANSWERS REPORTED

Answers

I think your answer would be 3(3x+y)

What is 4 divided by 1/10?

Answers

4 divided by 1/10 is 40 :)


find an equation for the line below

Answers

The equation of the line is: y=2/-5x + 3 3/5

elsa is designing a commercial jet. she drew a model of her design using the scale shown below. According to her design what will be the length and width in feet of the actual jet

Answers

Answer:

55

Step-by-step explanation:

7x+2=-54


Brainliest answer

Answers

Answer:

Step-by-step explanation:

Subtract 2 on both sides

7x = -56

Divide 7 on both sides

x = -8

In a soup kitchen, 22 pounds of rice was used during the lunch. If 110 people came to have lunch, about how many pounds of rice was used by each person?

Answers

Answer:

0.2 pounds of rice

Step-by-step explanation:

To find how much rice was used by each person, divide 22 by 110

22/110

= 0.2

So, each person used 0.2 pounds of rice

plssss help giving brainly

Answers

Answer:

-2 and 4

Step-by-step explanation:

not 100% sure but i think so

Answer: 4 + -6 = -2

Explanation: it’s technically 4-6 which also equals -2

Share 20 into the ratio 1:3

Answers

Answer:

5:15 :))

Step-by-step explanation:

you would do 1+3(=4) and then divide 20 by 4(=5)

5×1=5

5×3=15

what is the smallest integer greater than the square root of 85?

Answers

Answer:

the answer is 9.2

Step-by-step explanation:

The radical value √(85) lies between 81 and 100. So, the smallest integer greater than the square root of 85 is 10.

Radical:

Important information:

The given radical value is [tex]\sqrt{85}[/tex].

The perfect squares are 1, 4, 9, 16, 25, 36, 49, 64, 81, 100.

It is clear that,[tex]81<85<100[/tex]

Taking square root on each side, we get

[tex]\sqrt{81}<\sqrt{85}<\sqrt{100}[/tex]

[tex]9<\sqrt{85}<10[/tex]

The value [tex]\sqrt{85}[/tex] lies between 9 and 10.

Therefore, the smallest integer greater than the radical value square root of 85 is 10.

Find out more about 'Radical' here:

https://brainly.com/question/8243233

What is the constant of proportionality? What does it represent?

Answers

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. It can represent a number of things such as; increase or decrease in a set of numbers, a (x,y) point on a graph, or it can just be shown in a table to show rate change.

Renee is creating a diagram to prove that a certain triangle is a right triangle. In her diagram, she uses three white quadrilaterals that are squares. Which diagram could be the one that Renee is creating

Answers

Answer:

Option D

Step-by-step explanation:

A triangle is a polygon with three sides and three angles. Types of triangles are right angled triangle, scalene triangle, equilateral triangle and isosceles triangle.

A right angled triangle is a triangle in which one of the angles is 90°. The side opposite the 90° is known as the hypotenuse while the remaining sides is known as the leg. Let us assume a right triangle with legs of a, b and a hypotenuse of c. Then using Pythagoras theorem:

c² = a² + b²

From the options, option d is the correct option.

For option D, the hypotenuse is c and one leg is a. Let x represent the second leg. Hence:

c² = a² + x²

x² = c² - a²

x = √(c² - a²)

Therefore the other leg would be √(c² - a²)

PLEASE HELP I WILL MARK YOU BRAINLIEST​

Answers

Answer:

Is A or B. Success the work matematic.

please help 25 points !!!!!!!!!!!!!!!!!!!
look at the picture below . write a word problem for that equation.

Answers

Now we have to,

Write a word problem for the equation,

→ 2/6 × 3/4

Let's write a word problem,

Nobita had got salary, then he spent his 2/6 of his salary for every 3/4 times. How much he had spent totally (in fraction), give the required expression?

Evaluate the expression for p=3.

4p=

Answers

Answer:

12

Step-by-step explan

Answer:

12

subsitute 3 for p and multiply :)

3 x 4 = 12

Briley has 347 marbles. Joey has 4 times as many as Briley. Carson has 799 fewer than Joey. How many marbles does Carson have?

Can somebody help me thank you? Show work please

Answers

Answer:

697 marbles

Step-by-step explanation:

We know:

Briley- 374 marbles

Joey- 374*4

Carson- (374*4)-799

Solve:

374*4= 1496 (This is how many Joey has)

1496-799= 697 (This is how many Carson has)

Hope this helps!

Find the x- and y-intercepts of the graph of the linear equation −x+8y=4.

Answers

x intercept: (-4,0)
y intercept: (0,1/2)

x-intercept is when y = 0
-x+8(0)=4
-x+0=4
x=-4

y-intercept is when x = 0
-(0)+8y=4
8y=4
y=4/8=1/2

suppose potatoes cost $0.99 per pound. complete the function rule c=? to describe the relationships between the total cost c and the number of pounds of potatoes p you buy.

Answers

Answer:

c=p*0.99

you gonna multiply the amt of patatoes by the cost of one to get the total like if you were buying 5 you would multiply  5 by 99 to get the total    

P = $0.99

C = [tex]P * x[/tex]

[Note: x is how many pounds of potatoes you buy.]

Hope this helped, I'm not too good with relations.

Please help due today

Answers

Answer: 80 ft²

Step-by-step explanation:

The area of a trapezoid is one half  the product of the height and the sum of the lengths of the  bases.

(6 + 10) * 0.5 * 10 = 80 (ft²)

solve for X

Please help

Answers

Answer:

x = 5

Step-by-step explanation:

set JN and NL equal to each other...

14x – 17 = 3x + 38

11x = 55

x = 5

Anica volunteers to fold T-shirts she fold 8 T-shirts every 6 minutes how many t-shirts will anica make in 45 minutes

Answers

Answer:

I think 60

Step-by-step explanation:

I divided 45 by 6, and then multiplied that answer by 8. I hope this helps :) (Tell me if I am wrong)

The Answer Should Be 5 Minutes!

I Hope This Helps You!!!

What is the name of the parent function for f(x)=2 x-1

Answers

Answer:

Linear Function

Step-by-step explanation:

Any equeation that comes in the form mx + b is a linear function

Elizabeth earns $8 per hour. She works 40 hours each week. How much money does she earn in 6 weeks?

Answers

Answer:

40x8 is 320. 320x6 is 1,920 that's your answer

The cost to rent a bike is $28 for the first day plus $2 for each day after that. What is the cost of renting the bike for 8 days?

Answers

Answer:

Step-by-step explanation:

28x2 then dived it by 8 and then   thts ur answer

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