<h2>Firstly, we let for the number to be any number or letter.</h2>
Step-by-step explanation:
The above pictures shows working.
Answer:
Step-by-step explanation:
50% is
but we're working with 64 units, not 100. So, we must find a number that represents 50 but in 64 units.
![\frac{50}{100}=\frac{x}{64}](https://tex.z-dn.net/?f=%5Cfrac%7B50%7D%7B100%7D%3D%5Cfrac%7Bx%7D%7B64%7D)
If you solve for x, you get:
![x=\frac{50*64}{100}\\ x=32](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B50%2A64%7D%7B100%7D%5C%5C%20x%3D32)
![\frac{50}{100}=\frac{32}{64}](https://tex.z-dn.net/?f=%5Cfrac%7B50%7D%7B100%7D%3D%5Cfrac%7B32%7D%7B64%7D)
Answer: The ratio of the perimeter = 7/4
The ratio of the area = 28/21
Took me alot of time ;p pls mark as brainliest! :)
Answer:
The answer would be B, Time(Length)
Step-by-step explanation:
You simply replace the two values and get (x,y).
Answer:
<em>Javier deposited $178.79 initially</em>
Step-by-step explanation:
<u>Compound Interest
</u>
It occurs when the interest is reinvested rather than paying it out. It's basically earning interest over interest.
The formula is:
![{\displaystyle A=P\left(1+{\frac {r}{n}}\right)^{nt}}](https://tex.z-dn.net/?f=%7B%5Cdisplaystyle%20A%3DP%5Cleft%281%2B%7B%5Cfrac%20%7Br%7D%7Bn%7D%7D%5Cright%29%5E%7Bnt%7D%7D)
Where:
A = final amount
P = initial principal balance
r = interest rate
n = number of times interest applied per time period
t = number of time periods elapsed
If the final amount is known, we can solve for the principal:
![{\displaystyle P=A\left(1+{\frac {r}{n}}\right)^{-nt}}](https://tex.z-dn.net/?f=%7B%5Cdisplaystyle%20P%3DA%5Cleft%281%2B%7B%5Cfrac%20%7Br%7D%7Bn%7D%7D%5Cright%29%5E%7B-nt%7D%7D)
Javier opened a savings account t=5 years ago. The account has an interest rate of r=3%= 0.03 compounded quarterly. Since there are 4 quarters in a year, n=4. The current balance is A=$200. Let's calculate the initial balance or principal:
![{\displaystyle P=\$200\left(1+{\frac {0.03}{4}}\right)^{-3*5}}](https://tex.z-dn.net/?f=%7B%5Cdisplaystyle%20P%3D%5C%24200%5Cleft%281%2B%7B%5Cfrac%20%7B0.03%7D%7B4%7D%7D%5Cright%29%5E%7B-3%2A5%7D%7D)
![{\displaystyle P=\$200(1.0075)^{-15}}](https://tex.z-dn.net/?f=%7B%5Cdisplaystyle%20P%3D%5C%24200%281.0075%29%5E%7B-15%7D%7D)
![{\displaystyle P=\$200*0.894}](https://tex.z-dn.net/?f=%7B%5Cdisplaystyle%20P%3D%5C%24200%2A0.894%7D)
![\boxed{P =\$178.79}](https://tex.z-dn.net/?f=%5Cboxed%7BP%20%3D%5C%24178.79%7D)
Javier deposited $178.79 initially