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3 years ago

What’s is the answer plzzzz help

Mathematics

2 answers:

Xelga [282]3 years ago

7 0

Answer:

The ratio is 5:3 because there are 5apples and 3 pears

Morgarella [4.7K]3 years ago

5 0

The ratio is 5:3 because there are 5apples and 3 рears

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A box contains four red balls and eight black balls. Two balls are randomly chosen from the box, and are not

castortr0y [4]

P(B) = 8/12

P(R | B) = 4/11

P(B ∩ R) = 8/33

The probability that the first ball chosen is black and the second ball chosen is red is about 24% percent

<em><u>Solution:</u></em>

<em><u>The probability is given as:</u></em>

$Probability = \frac{\text{number of favorable outcomes}}{\text{total number of possible outcomes}}$

Given that,

A box contains four red balls and eight black balls

Red = 4

Black = 8

Total number of possible outcomes = 12

Let event B be choosing a black ball first and event R be choosing a red ball second.

$P(B) = \frac{8}{12}$

$P(B n R) = P(B) \times P(R)\\\\P(B n R) = \frac{8}{12} \times \frac{4}{11}\\\\P(B n R) = \frac{8}{33}$

<h3><u>Find </u><u> P(R | B)</u></h3><h3> $P(R | B) = \frac{P(R n B)}{P(B)}\\\\P(R | B) = \frac{\frac{8}{33}}{\frac{8}{12}}\\\\P(R | B) = \frac{8}{33} \times \frac{12}{8}\\\\P(R | B) = \frac{4}{11}$ </h3>

<em><u>The probability that the first ball chosen is black and the second ball chosen is red is about percent</u></em>

$\frac{8}{33} \times 100 = 0.24 \times 100 = 24 \%$

Thus the probability that the first ball chosen is black and the second ball chosen is red is about 24% percent

4 0

4 years ago

Find the greatest common factor of 636363 and 424242.

astra-53 [7]

Answer:

Step-by-step explanation:

1 goes into both

6 0

4 years ago

Read 2 more answers

If ∠R is given and the values of r and q are given, then explain whether the Law of Sines or the Law of Cosines should be used t

JulijaS [17]

Answer:

Law of Sines, two sides and an opposite angle are known

Step-by-step explanation:

We are given <R, which is an opposite angle to side r.

Side q is also given, which has an unknown opposite angle, <Q, of which we are required to find.

Since two sides and an opposite angle are known, The Law of Sines would be applied in solving for <Q.

Thus, the following would be used:

$\frac{sin(Q)}{q} = \frac{sin(R)}{r}$

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3 years ago

What is 18 divided by 11

schepotkina [342]

1.63636363636363636363636363636.........

5 0

3 years ago

Steps !<br> 2(x + 4) = 4x + 3 - 2x + 5

fomenos

Step-by-step explanation:

2x + 8 = 4x + 3 - 2x + 5

2x - 4x + 2x = 3 +5 -8

0 = 0

x = 0

6 0

3 years ago