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mojhsa [17]
4 years ago
13

Write fifty-four hundredths as a decimal number.

Mathematics
2 answers:
victus00 [196]4 years ago
8 0

Answer:

0.54

Step-by-step explanation:

This is the right answer ;)

Cloud [144]4 years ago
6 0

Answer:

0.54

Step-by-step explanation:

fifty-four hundredths as a decimal number is 0.54

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while only 5% of babies have learned to walk by the age of 10 months, 75% are walking by 13 months. if the age at which babies d
7nadin3 [17]

Answer:

mu=12.1299

\sigma=1.2987

Step-by-step explanation:

In the normal distribution curve, we will have 5% below 10 months [horizontal axis] and 75% below 13 months [horizontal axis].

We need to find z-score using z-table [normal table] that corresponds to

5% = 0.05

and

75% = 0.75

Zscore formula:

z=\frac{x-\mu}{\sigma}

Where mu is mean and sigma is standard deviation [these are the 2 parameters we are seeking]

So, 0.05 corresponds to z = -1.64, and

0.75 corresponds to z = 0.67

Now we put both of these into z-score formula and solve both equations for mu and sigma.

-1.64=\frac{10-\mu}{\sigma}

and

0.67=\frac{13-\mu}{\sigma}

The first equation becomes:

-1.64=\frac{10-\mu}{\sigma}\\-1.64\sigma+\mu=10\\mu=10+1.64\sigma\\

Now, simplifying 2nd equation and putting this in:

0.67=\frac{13-\mu}{\sigma}\\0.67\sigma=13-(10+1.64\sigma)\\0.67\sigma=13-10-1.64\sigma\\2.31\sigma=3\\\sigma=1.2987

Now finding mu:

\mu=10+1.64(1.2987)\\\mu=12.1299

These two MU(mean) and SIGMA(standard deviation) are the 2 parameters.

4 0
3 years ago
The average cost of a bag of popcom at
shepuryov [24]

Answer:

B 26.3% increase

Step-by-step explanation:

1 - 3.50/4.75 = .263 = 26.3%

7 0
3 years ago
In a set of 24 cards, each card is numbered with a different positive integer from 1 to 24. One card will be drawn at random fro
pentagon [3]

Answer:

P_{f} = \frac{7}{24}

Step-by-step explanation:

Considering that the set has 24 cards on it, <em>numbered from 1 to 24 inclusive</em>, it means that the total number of cases is 24. Now, we have to find the number of favorable outcomes.

  • Cases where the number is divisible by both 2 and 3:

In the interval 1 to 24 inclusive, [1,24]:

Numbers divisible by 2 => 2 4 6 8 10 12 14 16 18 20 22 24

Numbers divisible by both 2 and 3 => 6 12 18 24

Which means that there are <em>4-favorable outcomes for this scenario</em>.

  • Cases where the number is divisible by 7:

In the interval 1 to 24 inclusive, [1,24]:

Numbers divisible by 7 => 7 14 21

Which means that there are <em>3-favorable outcomes for this scenario.</em>

  • The total number of favorable outcomes is 4 + 3 = 7. Since the total number of cases is 24, the probability of favorable outcomes, P_{f}, is:

P_{f} = \frac{number of favorable outcomes}{Total number of cases} = \frac{7}{24}

7 0
3 years ago
kitchen is 81 sq ft. kitchen is 9 times as many sq ft as the pantry of the rectangular pantry is 3 ft wide what is the length of
Igoryamba
81 divided by 9 equals 9
so the pantry is 9 ft
so 3 times 3 is your awnser
realy just 3
6 0
4 years ago
Are their always the same number of prime numbers between 2 consecutive multiples of 10
Harlamova29_29 [7]

Yes there are. Its just the way they work out!

3 0
3 years ago
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