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Zielflug [23.3K]
4 years ago
7

there are 15 black marbles and 10 white marbles in a bag. If you pick a marble from the bag without looking, what are your chanc

es of picking a white marble?
Mathematics
2 answers:
satela [25.4K]4 years ago
6 0

Answer: 40%

Step-by-step explanation:

olga_2 [115]4 years ago
5 0

Answer: 2/5 or 40%

Step-by-step explanation: 15 + 10 = 25 and 10/25 simplifies to 2/5.

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An urn contains 13 red marbles and 14 blue marbles. 16 marbles are chosen at random. what is the probability that 6 red marbles
11111nata11111 [884]
6/43
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4 0
3 years ago
The line passes through (9,8) and is perpendicular to x-2y=-16
pickupchik [31]

The equation of line perpendicular to x-2y=-16 passing through (9,8) is: y=-2x+26

Step-by-step explanation:

Given

x-2y=-16\\Adding\ 2y\ on\ both\ sides\\x=2y-16\\Adding\ 16\ on\ both\ sides\\x+16=2y-16+16\\x+16=2y\\2y=x+16\\Dividing\ both\ sides\ by\ 2\\\frac{2y}{2}=\frac{x+16}{2}\\y=\frac{x}{2}+\frac{16}{2}\\y=\frac{1}{2}x+8\\

The equation is in slope-intercept form,  the coefficient of x will be the slope of given line. The slope is: 1/2

As the product of slopes of two perpendicular lines is -1.

\frac{1}{2}*m=-1\\m=-1*\frac{2}{1}\\m=-2

Slope intercept form is:

y=mx+b

Putting the value of slope

y=-2x+b

To find the value of b, putting (9,8) in the equation

8=-2(9)+b\\8=-18+b\\b=8+18\\b=26

Putting the values of b and m

y=-2x+26

Hence,

The equation of line perpendicular to x-2y=-16 passing through (9,8) is: y=-2x+26

Keywords: Equation of line, Slope-intercept form

Learn more about equation of line at:

  • brainly.com/question/1993757
  • brainly.com/question/2048256

#LearnwithBrainly

4 0
3 years ago
100 POINT QUESTION!!! Please help!
Aleksandr-060686 [28]

Answer: Quest 1 final result. (I looked all this up)

(2x -1) * (5x squared - 2x + 6)

_____________________.

4

I could not find the work for part two but I got the answer: x=3,7

5 0
3 years ago
Read 2 more answers
What is 9+m=1.5<br><br><br>i need the answer for m
Oksi-84 [34.3K]

Answer:

m = - 7.5

Step-by-step explanation:

Given

9 + m = 1.5 ( subtract 9 from both sides )

m = - 7.5

5 0
3 years ago
Name the binomial you can multiply by (x + 9) to get the product x2 + 5x - 36.
Mrac [35]
The answer is:  [C]:  " (x - 4) " .
____________________________________________________
       " (x+9)(x-4) = x² - 4x + 9x - 36 = x² + 5x - 36 " .
____________________________________________________
8 0
3 years ago
Read 2 more answers
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