MATHEMATICS HIGH SCHOOL

A bag contains 6 green marbles, 9 red marbles, 7 white marbles, and 3 black marbles. What is the probability of drawing a red marble out of the bag? A. 1/18


B. 9/16


C. 9/25


D. 1/4

Answers

Answer 1
Answer: The answer is C. 9/25.

There are in total 25 marbles:
6 green + 9 red + 7 white + 3 black = 25 marbles.

There are 9 red marbles of the total 25 marbles. You can draw 9 red Thus, the probability of drawing a red marble out of the bag is 9 out of 25, which is 9/25.

Related Questions

How many solutions does this system of equations have y=5x-4and y=5x+2 1.infinitely many 2. 0 3. 1 4. 2
Please help me answer this I'm so confused
Perform the indicated operation and write and standard form. -7i(6i-3)
Which of the following choices is the subject of this simple sentence? The corn grew as tall as the fence.
(1 pt) A delivery truck made 8 stops in one neighborhood. By stop 5, there were 11 packages delivered. How many stops did it take to have 5 packages delivered? A. 12 B. 8 C. 3 D. 2

What is the product of -6.8 to the second power

Answers

6.8*68 =6.8^(2)
so 6.8*6.8=46.24

Need Help ASAP!!!

Find the sine of G

Answers

Answer:

≈0.68

Step-by-step explanation:

with what u have u can get cos G^(-1)

so it will be equal \sqrt43/9 =43°13'49.75"

now u can get the sine

sin 43°13'49.75" ≈ 0.68

Solve by substitution. Show each step of your work.

2x + y = 7

3x + 5y = 14

Answers

Alright...simple...showing all steps.. ;)

You have the equations...

2x+y=7
and
3x+5y=14

To be able to even solve for any of the variables...multiply the equations by...2...and..3...

2x+y=7----*3--> 6x+3y=21
and
3x+5y=14-----*2--->6x+10y=28

Thus,

6x+3y=21
-
6x+10y=28

=========

-7y=-7

y=1

Now, plug y back into any of the original equations....we'll use 2x+y=7 in this case....

2x+(1)=7

2x+1=7
      -1  -1

2x=6

x=3

Thus, the point of intersection for these two equations is (3,1)

Rosie works 40 hours a week as an office manager. If she made $23,920 last year, how much was she paid per hour?

Answers

Hey there.. 
Lets solve this questions in steps..

Step 1 - we need to know that how many weeks are there in 1 year
so, there are 52.17 weeks but the round figure is 52 weeks.

Step 2 - we know that shawn worked 40 hours a week
So, in order to get total hour worked by him in one year, we need to multiply 52 * 40
i.e. 52 *40 = 2080

Step 3 - Now, we have total hours we can simply divide the total hour worked with how much he earned last year
i.e. 23,920 / 2080
 = $11.5 per hour.

Hope this helped you..  :)

Answer:

11.50

Step-by-step explanation:

Given f(x)=10x over 2+7, find f^-1(x)I have provided a picture of the equation for it to be easier to read

Answers

Answer:

f(x)^(-1) = 1/(5x+7) [ 1 over (5x + 7)] with x≠ -1.4

Step-by-step explanation:

Given the function f(x), if f(x) ≠ 0, we would have the formula as following:

+) f(x)^(-1) = 1/f(x)

We have the given equation:

f(x) = (10x/2) + 7 = 5x + 7

f(x) ≠ 0 when and only when (5x + 7) ≠ 0

(5x + 7) ≠ 0

⇔ 5x  ≠ 0 - 7

⇔ 5x  ≠ -7

⇔ x  ≠ -7 ÷ 5

⇔ x  ≠ -1.4

So with x≠ -1.4, f(x) ≠ 0, we have:

f(x)^(-1) = 1/f(x) = 1/ (5x + 7)

Conclusion:  f(x)^(-1) = 1/(5x+7) [ 1 over (5x + 7)] with x≠ -1.4

Find the value of x to the nearest tenth.
х
34°
48

Answers

Answer:

x ≈ 39.8

Step-by-step explanation:

cos∅ = adjacent / hypotenuse

Since we are given a right triangle, we can use trigonometry to help us solve for missing values:

cos34° = x/48

x = 48cos34°

x = 39.7938

x ≈ 39.8
X= 39.79
(39.8 rounded)
Cos= adj/hyp
Other Questions
A statement that is proved by deductive logic is called a ______.
An artist wants to make alabaster pyramids using a block of alabaster with a volume of 576 cubic inches. She plans to make each pyramid with a square base area of 3 square inches and a height of 4 inches. At most, how many pyramids can the artist make from the block of alabaster?
Please can someone solve 8n + 6 = 4n + 30
Does proportional and congruent mean the same thing?