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Cerrena [4.2K]
3 years ago
8

One bag of marbles contains 2 black , 3 red , and 5 white marbles . A second bag contains 3 white and 2 black marbles . What is

the probability of selecting one marble from each bag and that they are not both black.
Please help!!
Mathematics
1 answer:
BaLLatris [955]3 years ago
5 0

Answer:

<u>NOT BOTH BLACK = 1-2/25 = 23/25</u>

Step-by-step explanation:

Bag 1 : 8 non-black out of 10

P(1) = 8/10

Bag 2: 3 non-black out of 10

P(2)=3/5

Probability of both independent events happening can be calculated using the multiplication rule

P(1) and P(2) = P(1)*P(2) = 8/10 * 3/5 = 24/50 = <u>12/25 (both are not black, or none is black)</u>

Interpretating not both black meaning at most one black, then

we calculate the probability of both are black,

P(1) = 2/10

P(2) = 2/5

Probability that both balls are black can be calculated using the multiplication rule

P(1) and P(2) = 2/10 * 2/5 = 2/25

Probability that <u>NOT BOTH BLACK = 1-2/25 = 23/25, i.e. at most one black</u>

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WHAT IS THE SURFACE AREA DUE BY FIVE PM WITH STEPS PLZ I WILL GIVE BRAINLIEST ANSWERS
lubasha [3.4K]

Answer:

I have the right answer now!

Step-by-step explanation:

Base: 8×8=64

Triangular base: 16×8= 128÷2= 64

All Triangle base added up:64×4= 256

64+256=320

320!

Hope this helps!

Pls give me brainliest!

5 0
3 years ago
The number of bagels sold daily for two bakeries is shown in the table:
ivann1987 [24]

Going by the data given, the best center of distribution to use in terms of mean and median is D) Mean for Bakery A because the data is symmetric; median for Bakery B because the data is not symmetric.

<h3>What centers of distribution should be used?</h3>

The mean should be used for data sets that are symmetric while the median should be used for data that is not symmetric.

The data is said to be symmetric when the mean and median are equal or very close.

Bakery A mean:

= (45 + 52 + 51  48 + 61 + 34 + 55  46) / 8

= 49

Bakery A median is 49.5

Bakery B mean:

= (48  42 + 25  45 + 57 + 10 + 43 + 46 ) / 8

= 39.5

Bakery B median is 44.

This shows that Bakery A data is symmetric so the best center of distribution to use is mean.

Bakery B is not symmetric so the center of distribution to use is median.

Find out more on symmetric data at brainly.com/question/7130507

#SPJ1

8 0
1 year ago
When I double my number and add eight , I get my number plus twelve. What is my number?
Butoxors [25]
Your answer is 2 as if you double 2 you get 4 and add 8 oh get 12
8 0
3 years ago
Lena buys 3 cans of soft drinks and 5 sandwiches for a picnic . Patrick buys 9 cans of soft drinks and 10 sandwiches for the sam
iren2701 [21]

Answer:

for Lena

C = 3x   C + 5x

for Patrick

C = 9x  C = 10x

for total  C = 12x + 15x

Step-by-step explanation:

3 0
2 years ago
Use function notation to write the equation of the line
blondinia [14]

f(x)=mx+b\to y=mx+b

We have two points:

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The point slope form of the line:

y-y_1=m(x-x_1)\\\\m=\dfrac{y_2-y_1}{x_2-x_1}

Substitute

m=\dfrac{7-0}{-4-(-3)}=\dfrac{7}{-1}=-7

y-0=-7(x-(-3))\\\\y=-7(x+3)\\\\y=-7x-21

Answer:

f(x)=-7x-21

8 0
3 years ago
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