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elena-14-01-66 [18.8K]
2 years ago
12

No links

Mathematics
2 answers:
garik1379 [7]2 years ago
7 0

Answer:  D) 1/10

======================================================

Explanation:

Initially there are

  • 2 red beans
  • 1 yellow bean
  • 2 black beans

Giving 2+1+2 = 5 total

The fraction 2/5 represents the probability of picking red

After a red bean is chosen, there's 2-1 = 1 red left out of 5-1 = 4 total. The fraction 1/4 is the probability of getting another red jelly bean.

Multiply those fractions to get the final answer

(2/5)*(1/4) = 2/20 = 1/10

ludmilkaskok [199]2 years ago
5 0

Answer:

2/5

Step-by-step explanation:

There's 5 jellybeans in the bag total and of the five, 2 of them are red, so the probability that Cynthia gives him 2 reds is 2/5.

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The distribution of the amount of money spent by first-time gamblers at a major casino in las vegas is approximately normal in s
Lostsunrise [7]

Solution: We are given:

\mu=600, \sigma =120

We need to find the z value corresponding to probability 0.84, in order to find the how much money almost 84% of gamblers spent at casino.

Using the standard normal table, we have:

z(0.85) = 0.9945

Now we will use the z score formula to find the required amount:

z=\frac{x-\mu}{\sigma}

0.9945=\frac{x-600}{120}

0.9945 \times 120 = x - 600

119.34 = x - 600

x = 600 + 119.34        

x = 719.34

x = 720 approximately

Therefore, almost 84% of gamblers spent more than $720 amount of money at this casino.

5 0
3 years ago
−30=5(x+1)minus, 30, equals, 5, left parenthesis, x, plus, 1, right parenthesis<br> x =x=x, equals
ivann1987 [24]

Answer:

x = -7

Step-by-step explanation:

−30=5(x+1)

Divide each side by 5

-30/5=5/5(x+1)

-6 =x+1

Subtract 1 from each side

-6-1 = x+1-1

-7 =x

8 0
3 years ago
A park ranger observed the number and ages of children who visited the park on a Friday morning. The results of his observations
aleksandr82 [10.1K]
ANSWER

The number of children between the ages of 9 and 15 who visited the park is
20


EXPLANATION


The number of children between the ages of 9 and 15 who visited the park are those within the age group 9 to 12 and 12 to 15.


We can from the graph that, the height of the bar that corresponds to the age group 9 to 12

= 14
and the height of the bar that corresponds to the age group 12 to 15

= 6


The sum of the two frequencies

= 14 + 6 = 20
8 0
2 years ago
What is 29503.488rounded two decimal places​
vesna_86 [32]

Answer:29503.49

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
What is the mixed number of 96/8
lions [1.4K]
The answer is 12 because i divide 96 / 6 

(sorry i dont have division sign)

3 0
3 years ago
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