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zubka84 [21]
3 years ago
15

Two-fifths of a number

Mathematics
2 answers:
11Alexandr11 [23.1K]3 years ago
7 0
How do i ask a question
MakcuM [25]3 years ago
4 0

Answer:

2/5 of the number

Step-by-step explanation:

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Answer:

4=point

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A certain cold remedy has an 88% rate of success of reducing symptoms within 24 hours. Find the probability that in a random sam
Hitman42 [59]

Answer:

The probability of cured people in who took the remedy is 8/9.

Step-by-step explanation:

Success rate of the cold remedy = 88%

The number of people who took the remedy = 45

Now, 88% of 45 = \frac{88}{100}  \times 45 = 39.6

and 39.6 ≈ 40

So, out of 45 people, the remedy worked on total 40 people.

Now, let E: Event of people being cured by cold remedy

Favorable outcomes = 40

\textrm{Probability of Event E}  = \frac{\textrm{Total number of favorable outcomes}}{\textrm{Total outcomes}}

or, \textrm{Probability of people getting cured}  = \frac{\textrm{40}}{\textrm{45}}  = \frac{8}{9}

Hence, the probability of cured people in who took the remedy is 8/9.

3 0
3 years ago
Help me with this pls
Rufina [12.5K]

Answer:

b^-6

Step-by-step explanation:

(b^-2) / (b^4) = b^(-2 - 4)

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3 years ago
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Choose the true biconditional statement that can be formed from the conditional statement "If a natural number n is odd, then n2
gregori [183]
The answer 
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if A and B are two statements that are equivalents, that is also called biconditional statement, or " if and only if " statement

the general signification of <span>biconditional statement and its converse is:
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Step-by-step explanation:

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