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2 years ago

7.38 is 7.5 % of what ?

1 answer:

4 0

<span>the answer of the question 7.5 % means 7.5/100, so, to find the result we solve the following equation: (7.5 / 100 )X=7.38, this implies X= 738 / 7.5= 98.4, so finally, 7.38 is 7.5% of 98.4. Proof: let’s find the 7.5% of 98.4. That is to compute 98.4 *7.5/100 = 7.38. Hope this helps. Let me know if you need additional help!</span>

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-12.405 as a mixed number in simplest form please

scZoUnD [109]

$\\ \ast\sf\longmapsto -12.405$

$\\ \ast\sf\longmapsto -\dfrac{12405}{1000}$

Simplify until possible

$\\ \ast\sf\longmapsto -\dfrac{2481}{200}$

Now

$\\ \ast\sf\longmapsto -12\dfrac{81}{200}$

7 0

2 years ago

The question is in the picture.

bogdanovich [222]

Just download photomath bro, does everything for you.

3 0

2 years ago

A pizza is to be cut into halves. Each of these halves is to be cut into sevenths. What fraction of the pizza is each of the fin

Hitman42 [59]

Answer: $\dfrac{1}{14}$

Step-by-step explanation:

Given, A pizza is to be cut into halves.

Since half is represented by $\dfrac12$ .

So each piece is now $\dfrac12$ of the original.

if each of these halves is to be cut into sevenths, then the fraction of final pieces would be: $\dfrac{1}{2}\times\dfrac{1}{7}=\dfrac{1}{14}$ or we can say each half is divides into 7 pieces since there are two halves, so there will be 2 x 7 = 14 peices.

And the fraction of the pizza is each of the final pieces = $\dfrac{1}{14}$ .

7 0

2 years ago

PLEASE ANSWER!!!!!

Elenna [48]

Answer:

There is a significant difference between the means of the two population

Step-by-step explanation:

The mean number of catfish caught daily at Lake Martin is 85, with the number of catfish ranging from 75 to 140.

Range = 140 - 75 = 65

The mean number of catfish caught daily at Smith Lake is 104, with the number of catfish ranging from 96 to 183.

Range = 183 - 96 = 87

Difference in mean = 104 - 85 = 19

If the confidence interval includes 0 we can say that there is no significant difference between the means of the two populations, at a given level of confidence

But by considering the mean difference and the value of range, we can say that

There is significant difference between the means of the two population

3 0

2 years ago

At the local college, a study found that students earned an average of 14.8 credit hours per semester. A sample of 94 students w

ozzi

Answer:

By the Central Limit Theorem, the best point estimate for the average number of credit hours per semester for all students at the local college is 14.8.

Step-by-step explanation:

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.

Mean of the sample:

14.8 credit hours per semester.

By the Central Limit Theorem, the best point estimate for the average number of credit hours per semester for all students at the local college is 14.8.

6 0

3 years ago