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scZoUnD [109]
3 years ago
15

Jamal works part-time earning $8,000 per year. He reduces his work hours by half so that he can go to school. Jamal completes hi

s degree after 3 semesters (1.5 years) at a cost of $1,400 per semester in tuition and $500 per semester in books. What was Jamal?s investment in getting his degree?
Mathematics
2 answers:
taurus [48]3 years ago
7 0
I assume he gets paid by hour, and since he cut his ours in half he'll be earning half as much: 8000 / 2 = 4000.

He goes to school for 3 semesters which is a year and a half, so he's earning half income for a year and a half = 4000 * 1.5 = 6000

total cost of going to college per semester = tuition + books = (1400 + 500) = 1900
total cost of college for the year and a half (4 semesters) = 1900 * 3 = 5700

so, by working half hours he already reduced his income by half, making him lose 6000 in the course of the year and a half and he lost 5700 in college costs, this makes his total cost = cost of half hours + cost of college = 6,000 + 5700 = 11,700

Here the answer to your question really depends on what your teacher means by investment, if he means the opportunity cost and college cost then it's 11,700 if he means the cost of college then its 5700.
ale4655 [162]3 years ago
7 0

Answer: 11,700

Step-by-step explanation:

I assume he gets paid by hour, and since he cut his ours in half he'll be earning half as much: 8000 / 2 = 4000.

He goes to school for 3 semesters which is a year and a half, so he's earning half income for a year and a half = 4000 * 1.5 = 6000

total cost of going to college per semester = tuition + books = (1400 + 500) = 1900

total cost of college for the year and a half (4 semesters) = 1900 * 3 = 5700

so, by working half hours he already reduced his income by half, making him lose 6000 in the course of the year and a half and he lost 5700 in college costs, this makes his total cost = cost of half hours + cost of college = 6,000 + 5700 = 11,700

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3 3/4

Step-by-step explanation:

3/2/2/5 = 15/4

15/4 = 3 3/4

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It will take them exactly 4hours 48 minutes.

<h3>what is rate?</h3>

Rate is a measure of a given quantity against a known or standard quantity.

Analysis:

If Tanya and Tim cleaned the house in 3 hours. Then either of them would clean the house in 2 x 3 = 6 hours.

If their 3 children cleaned the house in 6 hours, then each child would clean the house in = 3 x 6 = 18 hours

Total time for cleaning the house = 18 hours + 6 hours = 24 hours

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In conclusion, the time for 5 people to clean the house is 4 hours 48 minutes

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1 year ago
39 3.3 5.1 3.3 x find the value in the triangle shown below
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9514 1404 393

Answer:

  x = 102

Step-by-step explanation:

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_____

<em>Additional comment</em>

The triangle is "overspecified", meaning more measures are provided than are necessary to completely describe the triangle. As is often the case in such situations, the measures provided are sufficiently inconsistent that two different "right" answers are possible, depending on how you work the problem. The first attachment shows the solution above.

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Answer:

a) P(47

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1-0.968 = 0.0321

b) P(45

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Part a

Let X the random variable that represent the scores of a population, and for this case we know the distribution for X is given by:

X \sim N(62,7)  

Where \mu=62 and \sigma=7

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P(47

And the best way to solve this problem is using the normal standard distribution and the z score given by:

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P(47

And we can find this probability on this way:

P(-2.143

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-2.143

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Part b

P(45

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P(-2.429

And in order to find these probabilities we can find tables for the normal standard distribution, excel or a calculator.  

P(-2.429

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