P(x > 52) = (60 - 52)/(60 - 20) = 8/40 = 1/5
This was a wrong answer, Sorry.
Since the nickles are first and there are (1.00 /.05= 20) 20 nickles in a dollar the first number is 20 then next is quarters and there is (1.00 / .25= 4) 4 quarters in a dollar so the second number is 4 so now u have to simplify if you were told to
the number 20 can be divided by 4 and the answer is 5 the number 4 is next divide by 4 and is 1 so the whole answer is <u>5 to 1 or 5:1</u> <u /><u />
The answer to this quistion is D
To solve this we are going to use the simple interest formula:
![A=P(a+rt)](https://tex.z-dn.net/?f=A%3DP%28a%2Brt%29)
where
![A](https://tex.z-dn.net/?f=A)
is the final amount.
![P](https://tex.z-dn.net/?f=P)
is the initial investment.
![r](https://tex.z-dn.net/?f=r)
is the interest rate in decimal form.
![t](https://tex.z-dn.net/?f=t)
is the time in years.
Investment A. We know that the initial investment is $10,000, so
![P=10000](https://tex.z-dn.net/?f=P%3D10000)
. We also know that the number of years is 5, so
![t=5](https://tex.z-dn.net/?f=t%3D5)
. To convert the interest rate to decimal form, we are going to divide the rate by 100%
![r= \frac{3}{100} =0.03](https://tex.z-dn.net/?f=r%3D%20%5Cfrac%7B3%7D%7B100%7D%20%3D0.03)
Lets replace those values in our formula to find
![A](https://tex.z-dn.net/?f=A)
:
![A=P(a+rt)](https://tex.z-dn.net/?f=A%3DP%28a%2Brt%29)
![A=10000(1+0.03*5)](https://tex.z-dn.net/?f=A%3D10000%281%2B0.03%2A5%29)
Investment B. ![P=8000](https://tex.z-dn.net/?f=P%3D8000)
,
![t=15](https://tex.z-dn.net/?f=t%3D15)
, and
![r= \frac{2.8}{100} =0.028](https://tex.z-dn.net/?f=r%3D%20%5Cfrac%7B2.8%7D%7B100%7D%20%3D0.028)
.
![A=P(a+rt)](https://tex.z-dn.net/?f=A%3DP%28a%2Brt%29)
![A=8000(1+0.028*15)](https://tex.z-dn.net/?f=A%3D8000%281%2B0.028%2A15%29)
![A=11360](https://tex.z-dn.net/?f=A%3D11360)
We can conclude that
investment A will be worth than investment B at the end of the investment period.