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lana [24]
3 years ago
10

A bag contains 10 balls of which 6 are red and the rest white and blue of equal numbers. If a ball is picked at random, find the

probability that it is either white or red.
Mathematics
2 answers:
makvit [3.9K]3 years ago
8 0

Answer:

\frac{4}{5}

Step-by-step explanation:

Let w = number of white balls, b = number of blue balls

6 + w + b = 10

w + b = 4

\because w = b

\therefore w + b =

w  = 2

P(r∪w) = P(r) + P(w) - P(r∩w)

= \frac{6}{10} + \frac{2}{10} - \frac{0}{10}

= \frac{8}{10}

= \frac{4}{5}

\therefore The probability of picking either a red or white ball is \frac{4}{5}  

Hope this helps :)

creativ13 [48]3 years ago
3 0

Answer:

Since each ball has an equal chance of being drawn: 16 p = 1, or ... You can either apply the first equation to find that. B = 1 - R = 3/8 ... A box contains 5 white, 6 red, and 4 black balls of identical size. If 3 balls are ... What is the probability of getting 2 red balls if we pick 3 balls from the bag randomly

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Avis:


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4 0
3 years ago
Read 2 more answers
Judys brother sam has a collection of 96 comic book. What are the ten way sam could divide his comic books into equal groups?
Georgia [21]
We have been given that Judy’s brother Sam has a collection of 96 comic books.
We have been asked to find the 10 ways Sam could divide his comic books into equal groups.
This can be done as follows:
96 can be written as .
Thus, we can either have 2 groups of 48 comics or 48 groups of 2 comics. As we can see we have 2 ways to divide the comic books in equal groups.
Likewise, 96 can also be written as . Here, we can similarly see that we can either have 3 groups of 32 comics or 32 groups of 3 comics. As we can again see we have 2 more ways to divide the comic books in equal groups, taking the total number of ways to 4.
Continuing in this manner we will see that we can have 4 groups of 24 or 24 groups of 4, 6 groups of 16 or 16 groups of 6 and lastly 12 groups of 8 or 8 groups of 12 comic books, thus taking the count to a total of 10 ways in which Sam can divide his comic books into equal groups.
4 0
3 years ago
Autumn buys eggs and apples at the store.
soldier1979 [14.2K]

Answer:

\frac{(5.76-34.14)}{6}

Step-by-step explanation:

8 0
2 years ago
Find the standard form of the equation of the parabola with a focus at (0, 8) and a directrix at y = -8.
Gala2k [10]
Vertex is directly in middle of directix and focus

distance from 8 to -8 is 16
16/2=8
so 8 below focus (since 8>-8) is the point (0,0
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it opens up because focus is above directix
also it goes up down so
4p(y-k)=(x-h)^2
(h,k) is veretx
we got that (h,k) is (0,0)
and p is distance from vertex to focus which is 8
so
4(8)(y-0)=(x-0)^2
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3 years ago
I never got my anwser to finding the product and write the lowest term to<br> 7/54×27/35
kenny6666 [7]

Answer:

Step-by-step explanation:

7 / 54 * 27/35 =

1/2 * 1/5 =

1/10 <===

4 0
4 years ago
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