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gladu [14]
3 years ago
7

Use words to describe the relationship between corresponding numbers of hours and weeks

Mathematics
2 answers:
4vir4ik [10]3 years ago
8 0

Answer:

In words we can say that  there are seven times twenty four  i.e, one hundred and sixty eight hours.

Step-by-step explanation:

In this question, we need to use words  to describe the relationship between corresponding numbers of hours and weeks.

In a day,there are twenty four hours and there are seven days in a week .

Number of hours in a day =  24 hours

Number of hours in a week = Total number  of hours in 7 days = 24\times 7

On mutiplying 24 by 7, we get

Number of hours in a week = 168 hours

Therefore, in words we can say that  there are seven times twenty four  i.e, one hundred and sixty eight hours.

timofeeve [1]3 years ago
4 0

Answer:

One week equals one hundred and sixty eight hours.

Step-by-step explanation:

There are twenty four  hours in a day and seven days in a week.

So in one week there are seven times twenty four  equals one hundred and sixty eight hours.

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Each contestant in the Hunger Games must be trained to compete. Suppose that the time it takes to train a contestant has mean 5
LiRa [457]

Answer:

11.51% probability that it will take less than 450 days to train all the contestants.

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For the sum of n variables, the mean is \mu*n and the standard deviation is s = \sigma\sqrt{n}

In this question:

n = 100, \mu = 100*5 = 500, s = 4\sqrt{100} = 40

Approximate the probability that it will take less than 450 days to train all the contestants.

This is the pvalue of Z when X = 450.

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{X - \mu}{s}

Z = \frac{450 - 500}{40}

Z = -1.2

Z = -1.2 has a pvalue of 0.1151

11.51% probability that it will take less than 450 days to train all the contestants.

8 0
3 years ago
Solve the algebraic expression , is it equivalent?
Vladimir [108]

Answer:

No

Step-by-step explanation:

When  you distribute the -2 you get 6x -2x+2. When  you simplify it you get 4x+2 which is different than 4x-2.

6 0
2 years ago
How many times as bigger is it? Picture shown above
Mademuasel [1]

2 * 10^2

Divide the first numbers, which are 6 and 3, to get 2. Then, subtract the powers of the exponents, which are 5 and 3, to get 2.

6 0
3 years ago
38 is 8 percent, of what number?
adoni [48]

Answer:

475

Step-by-step explanation:

Is means equals.  We need to change 8% to a decimal.  8% = .08.  Of means multiply.  X is the unknown number.

38 = .08 * x

Divide each side by .08

38/.08 = .08x /.08

475 = x

The unknown number is 475

6 0
3 years ago
Read 2 more answers
Using faucet P, you can fill a sink in 10 minutes. Faucet Q takes only 8 minutes to fill the same sink. How long will it take to
nevsk [136]

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

Let t represent the time it takes to fill the sink using both faucets together, hence:

(1/10 + 1/8)t = 1

t = 4.44 minutes

It would take 4.44 minutes to fill the sink using both faucets P and faucet Q together

Find out more on equation at: brainly.com/question/2972832

#SPJ1

4 0
1 year ago
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