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3 years ago

The number of students enrolled at a college is 15,000 and grows 4% each year

Mathematics

2 answers:

nataly862011 [7]3 years ago

6 0

The number of students grows by 600 per year

Burka [1]3 years ago

6 0

I am not sure the question that you are asking here but I may be able to help you out. To figure out how many physical students that the college gains you have to multiply 15000 and 4%. However, you have to make the 4% into a decimal. In order to do that, you have to move the decimal place two places to the left. This would make 4% into 0.04. When you multiply 15000*0.04, you get 600. Then you go from there to answer whatever question you wanted answered.

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Answer:

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Step-by-step explanation:

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A person must score in the upper 8% of the population on an IQ test to qualify for membership in MENSA, the international high-I

Cloud [144]

Answer:

A person must get an IQ score of at least 138.885 to qualify.

Step-by-step explanation:

Problems of normally distributed samples are solved using 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.

In this problem, we have that:

$\mu = 115, \sigma = 17$

(a). [7pts] What IQ score must a person get to qualify

Top 8%, so at least the 100-8 = 92th percentile.

Scores of X and higher, in which X is found when Z has a pvalue of 0.92. So X when Z = 1.405.

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

$1.405 = \frac{X - 115}{17}$

$X - 115 = 17*1.405$

$X = 138.885$

A person must get an IQ score of at least 138.885 to qualify.

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3 years ago

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The sum of three numbers is 1,116. One of

Afina-wow [57]

Answer:

The value of k is 496

Step-by-step explanation:

let, the other two numbers be x and y

so, (x+y) +k =1116

let the value of (x+y) be 100 so we can assume k to be 20% less of 100 which is 80

so now (x+y) =100(assuming)

k =80(assuming)

now, (x+y) +k =1116 (putting assumed values(

or, 100 + 80 =1116

or, 180 units = 1116

or, 1 unit = 1116/180

.: 1 unit = 6.2

we have assumed value of k to be 80 units previously so now, k = 80 units

or, K =80*6.2 (1 unit =6.2)

.: k = 496

Hope this answer helps you

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3 years ago

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Answer:

Step-by-step explanation:

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