Answer:
The cost of each computer before finance is:
Desktop: $2900.00, Laptop: $3200.00
Step-by-step explanation:
Lets say the cost of Desktop is 'D' dollars.
The cost of laptop is
dollars.
Total finance charge for 1 year is given by:
![0.06\times D+0.07 \times (D+300)=398](https://tex.z-dn.net/?f=0.06%5Ctimes%20D%2B0.07%20%5Ctimes%20%28D%2B300%29%3D398)
Solving for D we get:
.......(equation 1)
![0.13D=398-21=377](https://tex.z-dn.net/?f=0.13D%3D398-21%3D377)
![D=\frac{377}{0.13} =2900](https://tex.z-dn.net/?f=D%3D%5Cfrac%7B377%7D%7B0.13%7D%20%3D2900)
Now the cost of laptop is D+300:
![D+300=2900+300=3200](https://tex.z-dn.net/?f=D%2B300%3D2900%2B300%3D3200)
So before finance, the cost of desktop was $2900.00 and the cost of laptop was $3200.00.
P.S: You can check if your calculation is correct by plugging the values of the cost of laptop and desktop in the equation 1.
Answer:
And rounded up we have that n=31
Step-by-step explanation:
First we need to find the critical value for the margin of error desired. The confidence level is 0.95 so then the significance is
and the critical value for this case would be:
![z_{\alpha/2} =\pm 1.96](https://tex.z-dn.net/?f=%20z_%7B%5Calpha%2F2%7D%20%3D%5Cpm%201.96)
The margin of error for the proportion interval is given by this formula:
(a)
And on this case we have that
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The estimated proportion for this case is
. And replacing into equation (b) the values from part a we got:
And rounded up we have that n=31
Step-by-step explanation:
8.4%/100% x 5000 = interest
(5000 x 12) + (interest x 12)
= investment worth
Answer:
Your answer should be 443.82
Step-by-step explanation:
Ok, so if 6 workers were paid 6.93 an hour each and worked 9 hours each then you would do 6.93 x 9 for the number of hours and the pay for each hour, which is 62. 37. Then you would times 62.37 by 6 because you have 6 workers and the question asks for how much they made in TOTAL. 62.37 x 6 is 344.22, then you still have you overtime hours. So if each worker makes 3.32 for every overtime hour then you would do 3.32 x 5 for the number of hours. And that equals 16.60, then you would multiply that by 6 for the number of workers, 16.60 x 6 = 99.60. So in total for regual hours they made 344.22, and in total for overtime hours they made 99.60. Now you add those to to get you overall price which is 443.82. And that should be your answer
Hope I did some good :) Have a great day!