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enot [183]
3 years ago
12

Using a sixteen-sided number cube, what is the probability that you will roll an even number or an odd prime number? Round to th

ree decimals
Mathematics
1 answer:
vfiekz [6]3 years ago
3 0
When there is a probability this OR that, the individual probabilities are added.

probability of rolling an even number is 1/2

prime numbers between 1-16 are {2, 3, 5, 7, 11, 13} of these five are odd.

probability of rolling an odd prime number
5/16

probability of even OR odd prime
1/2 + 5/16
8/16 + 5/16 = 13/16

13/16 = 0.825


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Assume that the pond contains 90 fish: 64 purple, 25 green, and 1 red. A contestant pays $0.55 to randomly catch one fish and re
Licemer1 [7]

Answer:

The carnival is losing (on average) $0.15 on each play

Step-by-step explanation:

To find out how much the carnival wins or looses in each play one subtract the expected value (EV) from each play from the amount charged by the carnival for each play ($0.55). If the expected value is higher than what the carnival charges, the carnival is losing money.

Expected is the sum of the payouts of each bet multiplied by its likelihood:

EV= \frac{64*0.40+25*1.15+1*9.00}{90}\\EV= 0.70

Since the expected value is higher than $0.55, the carnival is losing money, on average, on each play:

0.55-0.7 = -0.15

The carnival is losing (on average) $0.15 on each play

6 0
3 years ago
A copy machine can print 480 copies every 4 minutes. How many copies can it print in 10 minutes? :)
wariber [46]

Answer: 1200

Step-by-step explanation:

since every 4 minutes it can make 480 copies

Peisonally I would divide to see hou uch it could make in ONE minute

so 480/4 = 120

so it makes 120 copies per minute

now simply multiply by 10

120 x 10 = 1200 copies.

hope this helps! :)

5 0
3 years ago
Can someone please answer this one for me? :)
klio [65]

Answer:

In Corner left down

Step-by-step explanation:

4^10 ÷ 4^5 = 4^5

it's like: 10 - 5 = 5 ( I talk about the powers)

7 0
3 years ago
Will mark brainliest! in kite UVWX, m
Oksi-84 [34.3K]

Answer:

52

Step-by-step explanation:

5 0
3 years ago
A fishing boat has raidoed the Coast guard for a helicopter to pick up and injured crew member. at the same time of the emerginc
leonid [27]

Answer:

2 hours

Step-by-step explanation:

The question is asking us to get the meeting point of the two and at what time would they arrive here given their individual speeds. Now what needs to be done here is first add their average speeds.

The total average speed = 325 + 25 = 350km/h

Now the distance the helicopter would have traveled would be ; 325/350 * 700 = 650km

The remaining distance left for the boat would be 700 - 650 = 50km

Now the time taken for this would be 650/325 or 50/25 = 2hours

7 0
3 years ago
Read 2 more answers
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