the accompanying diagram depict's alex's demand for shoes. a. if shoes cost $50 a pair, how many pairs of shoes will alex buy?
1 answer:
If shoes cost $50 a pair, the number of shoes she would buy is 5.
<h3>How many shoes will she buy?</h3>The image shown is a demand curve. A demand curve shows the relationship between price and quantity demanded. Price is on the y-axis and quantity demanded is on the x-axis.
In order to determine the quantity demanded, trace $50 to the curve and trace it down to the x axis.
Please find attached the diagram used in answering this question. To learn more about the demand curve, please check: brainly.com/question/25140811
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Answer:
So the answer for this case would be n=12 rounded up to the next integer
Explanation:
represent the sample mean
population mean (variable of interest)
s=840 represent the sample standard deviation
n represent the sample size
The margin of error is given by this formula:
(a)
And on this case we have that ME =150 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for 95% of confidence interval, the significance level if 5% and the critical value would be , replacing into formula (b) we got:
So the answer for this case would be n=12 rounded up to the next integer
Answer:
a) - r=5%:
- r=4%:
- r=3%:
b) - r=5%: t=14 years
- r=4%: t=17 years [/tex]
- r=3%: t=23 years [/tex]
c) The amount obtained is
- Compuonded quarterly: $5,191.83
- Compuonded continously: $5,200.71
The latter is always greater, since the more often it is capitalized, the greater the effect of compound interest and the greater the capital that ends up accumulating.
Explanation:
The rate of accumulation of money is
To calculate the amount of money accumulted in a period, we have to rearrange and integrate:
When t=0, S=S₀ (the initial capital).
Now we have the equation for the capital in function of time:
a) For an initial capital of $4000 and for a period of five years, the amount of capital accumulated for this interest rates is:
- r=5%:
- r=4%:
- r=3%:
b) We can express this as
- r=5%:
- r=4%:
- r=3%:
c) When the interest is compuonded quarterly, the anual period is divided by 4. In 5 years, there are 4*5=20 periods of capitalization. The annual rate r=0.0525 to calculate the interest is also divided by 4:
If compuonded continously, we have:
The amount obtained is
- Compuonded quarterly: $5,191.83
- Compuonded continously: $5,200.71
The latter is always greater, since the more often it is capitalized, the greater the effect of compound interest and the greater the capital that ends up accumulating.