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Daniel [21]
3 years ago
11

Yesenia is investing money in the stock market, in which she is looking at growth over the first month. She invested $300 and in

the first month, earned 1.25% returns. How much money does she now have after the first month?
Mathematics
2 answers:
mixer [17]3 years ago
7 0

Answer:

1.25 because when in a calculator i add 1.25% i subtract 300 and that is all that is left.

melamori03 [73]3 years ago
7 0

Answer:

3.75

Step-by-step explanation:

\frac{x}{300} =  \frac{1.25\%}{100}

x \times 100 = 100x

300 \times 1.25 = 375

375 \div 100 = 3.75

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The projected worth (in millions of dollars) of a large company is modeled by the equation w = 236(1.06) t. The variable t repre
Ivahew [28]

Answer:

$448 million

Step-by-step explanation:

When it is 2011, t=11, so

w=236(1.06)^{11} \approx 448

7 0
1 year ago
A random sample of n = 9 structural elements is tested for comprehensive strength. We know the true mean comprehensive strength
irinina [24]

Answer:

Probability that the sample mean comprehensive strength exceeds 4985 psi is 0.99999.

Step-by-step explanation:

We are given that a random sample of n = 9 structural elements is tested for comprehensive strength. We know the true mean comprehensive strength μ = 5500 psi and the standard deviation is σ = 100 psi.

<u><em>Let </em></u>\bar X<u><em> = sample mean comprehensive strength</em></u>

The z-score probability distribution for sample mean is given by;

                          Z = \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } ~ N(0,1)

where, \mu = population mean comprehensive strength = 5500 psi

            \sigma = standard deviation = 100 psi

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) 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.

Now, Probability that the sample mean comprehensive strength exceeds 4985 psi is given by = P(\bar X > 4985 psi)

    P(\bar X > 4985 psi) = P( \frac{\bar X -\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{4985-5500}{\frac{100}{\sqrt{9} } } ) = P(Z > -15.45) = P(Z < 15.45)

                                                                  = <u>0.99999</u>

<em>Since in the z table the highest critical value of x for which a probability area is given is x = 4.40 which is 0.99999, so we assume that our required probability will be equal to 0.99999.</em>

4 0
4 years ago
Prove that at a party where some people shake hands, the number of people who shake hands with an odd number of people is an eve
Kobotan [32]
If there are n people, each person could shake hands with 0 people, 1 person, 2 people,... on up to shaking hands with n − 1
people. Count how many different answers there are to asking the person the question "How many hands did you shake?" How many people are there? If the people are the pigeons, and the possible answers to the question "how many hands did you shake" are the holes, can we conclude anything yet? No? How about now noticing that at least one of the holes "I shook hands with noone" or "I shook hands with everyone" has to be empty... now what?

"Since there are more pigeons than holes there must be a hole with at least two pigeons in the same hole" Now, replace the word "pigeons" and "holes" with the appropriate terms for the context of your specific question, remember we are talking about people and number of handshakes they participated in.
5 0
3 years ago
Mindy makes an annual salary of $24,590. What is the maximum monthly rent she could afford to pay? $553.27 $688.52 $234.99 $573.
andrezito [222]
Lets say u have 1 coconut that cost 688.52   ad another 1 that cost 234.99  
all you have to do is sale or buy an extra coconut to get 573.77  if that help dont forgot to drop  me the brainlist

3 0
3 years ago
Read 2 more answers
Solve this problem for me
Taya2010 [7]

Answer:

-6/17

Step-by-step explanation:

-60/170 can be simplified to -6/17 when dividing the numerator and denominator by 10. If you want a decimal, it is -0.352941164705882 with a bar over all the decimal.

5 0
3 years ago
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