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elena-14-01-66 [18.8K]
3 years ago
6

What's the sum of 2∕5 and 2∕4 ? Question 4 options: A) 6∕7 B) 9∕10 C) 8∕20 D) 10∕20

Mathematics
1 answer:
denis23 [38]3 years ago
4 0

\frac{2}{5}  +  \frac{2}{4}  =  \frac{2}{5}  +  \frac{1}{2}  =  \frac{4}{10}  +  \frac{5}{10}  =  \frac{9}{10}

Answer: B)

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A carnival is being set up in your hometown. From experience, the carnival organizer knows that the amount of money he will brin
pentagon [3]

Answer:

$6,200

Step-by-step explanation:

The question is to find the expected value.

We know the expected value of a scenario is the sum of the products of each probability of event and its profit or loss.

There are 3 probabilities in the scenario:

Rainy: 20% = 20/100 = 0.2

Sunny: 50% = 50/100 = 0.5

Cloudy: Rest, which is 100 - (50+20) = 100 - 70 = 30% = 30/100 = 0.3

Now, the gain and loss is:

Rainy: Lose 5000 means -5000

Cloudy: Gain 4000 means +4000

Sunny: Gain 12,000 means +12,000

Now, the expected value is:

Expected Value = (0.2)(-5000) + (0.5)(12000) + (0.3)(4000) =  $6,200

8 0
3 years ago
Evaluating expressions <br> 1.6-g when g=1.2<br> 1/2 k when k =2/3
Naddika [18.5K]
<span>1.6-g when g=1.2
= 1.6 - 1.2
= 0.4

</span><span>1/2 k when k =2/3
1/2 (2/3)
= 1/3

hope it helps</span>
4 0
4 years ago
HELP! STAT<br> I’m on a deadline and I need this question answered fast
Gelneren [198K]

Answer:

Im pretty sure its b

Step-by-step explanation:

if someone else knows for sure the answer choose their answer over mine but if its a last resort choose my answer  

5 0
3 years ago
6th grade math help me pleaseeee
spayn [35]
The answer is D , start from 2 and count to 8 and it gives you your answer
4 0
3 years ago
Read 2 more answers
In parallelogram ABCD , BE=7x−2 and ED=x2−10 .
Stells [14]

I'm assuming that the diagonals intersect at E. Since diagonals of a parallelogram bisect each other, BE=ED.

  • 7x-2=x²-10
  • x²-7x-8=0
  • (x-8)(x+1)=0
  • x = -1, 8

As distance must be positive, we reject the negative case, so x=8.

Thus, BE=ED=54.

5 0
2 years ago
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