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Shtirlitz [24]
3 years ago
7

What is 5 7/8 plus 1/5

Mathematics
1 answer:
erma4kov [3.2K]3 years ago
3 0
To solve this problem follow the steps below....

Step 1: Change the mixed number fraction into an improper fraction by multiplying the whole number by the denominator and adding the numerator to that product.Then put that result over 8

5 7/8=5 x 8 plus 7= 40 plus 7= 47/8

Step 2: Set up the newly written problem

47/8 plus 1/5

Step 3:Change the denominators to be the same numbers

47/8=235/40
1/5=8/40

Step 4: Set up the problem with your new equivalent fractions

235/40 plus 8/40

Step 5: Add the numerators only and keep the same denominator

235/40 plus 8/40=243/40

Step 5: Divide the numerator by the denominator to get the answer as a mixed number

243/40=6 3/40

Step 6(is optional):Write your answer as a complete statement

5 7/8 plus 1/5 equals 6 3/40

Answer: 6 3/40 

I hope this helps and I apologize in advance if any false information was given.






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Answer:

0.967 = 96.7% probability the rock sample actually contains raritanium

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

P(B|A) = \frac{P(A \cap B)}{P(A)}

In which

P(B|A) is the probability of event B happening, given that A happened.

P(A \cap B) is the probability of both A and B happening.

P(A) is the probability of A happening.

In this question:

Event A: Positive reading

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Probability of a positive reading:

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P(A) = 0.98*0.13 + 0.005*0.87 = 0.13175

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P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.1274}{0.13175} = 0.967

0.967 = 96.7% probability the rock sample actually contains raritanium

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