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krok68 [10]
3 years ago
12

Joaquin travels 300 miles in 6 hours. How fast was he going per hour?

Mathematics
2 answers:
Murljashka [212]3 years ago
6 0
Joaquin travels 50 miles per hour
Mariana [72]3 years ago
4 0

Answer:

50 miles per hour

Step-by-step explanation]

300/6=50/1

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Pls helppp me with this!!
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Answer:4

Step-by-step explanation: Because 4 goes in 3/4 better and more eqvilent to that answer.

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2 years ago
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A certain disease has an incidence rate of 0.1%. If the false negative rate is 8%
defon

Answer: 0.31 or 31%

Let A be the event that the disease is present in a particular person

Let B be the event that a person tests positive for the disease

The problem asks to find P(A|B), where

P(A|B) = P(B|A)*P(A) / P(B) = (P(B|A)*P(A)) / (P(B|A)*P(A) + P(B|~A)*P(~A))

In other words, the problem asks for the probability that a positive test result will be a true positive.  

P(B|A) = 1-0.02 = 0.98 (person tests positive given that they have the disease)

P(A) = 0.009 (probability the disease is present in any particular person)

P(B|~A) = 0.02 (probability a person tests positive given they do not have the disease)

P(~A) = 1-0.009 = 0.991 (probability a particular person does not have the disease)

P(A|B) = (0.98*0.009) / (0.98*0.009 + 0.02*0.991)

= 0.00882 / 0.02864 = 0.30796

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If you found this helpful please mark brainliest

3 0
2 years ago
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Martha and sarah leave block p and q towards q and p respectively simultaneously and travel in the same route. After meeting eac
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The average speed of Martha and Sarah is 32 km/h.

We need to know about the speed to solve this problem. Speed can be determined as the distance traveled divided by time. It can be written as

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From the question above, we know that:

t sarah = 3 hours

t martha = 5 hours

v sarah = 40 km/h

By using the speed equation, we get the distance

vsarah = s / tsarah

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vmartha = s / tmartha

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Hence, the average speed of Martha and Sarah is 32 km/h.

Find more on speed at: brainly.com/question/6504879

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