1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
zepelin [54]
3 years ago
15

You borrowed $25 from your friend. You paid him back in full after 6 months. He charged $2 for interest. What was the annual sim

ple interest rate that he charged you? Use the formula: I = Prt.
Mathematics
2 answers:
Paraphin [41]3 years ago
5 0
\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\to &\$2\\
P=\textit{original amount}\to& \$25\\
r=rate \\
t=years\to &\frac{1}{2}
\end{cases}

bearing in mind, "t" is in years, 6months is just 1/2 year

solve for "r", you'd get a decimal amount, multiply times 100, to get the percentage form
TEA [102]3 years ago
4 0

Answer:

Trina borrowed $460 from a friend. Her friend charged her 5% simple annual interest.Let's solve how much will Trina owe her friend in total after 3 years? Use the simple interest formula to solve.

I = prt

I = (460)(0.05)(3)

I = 460 * 0.05 = 23

I = 23 * 3 years = 69 dollars is the interest.

Trina must pay her friend a total of $460 + 69 = 529.

Step-by-step explanation:

You might be interested in
A walking trail through a forest preserve is 34,215 meters in length .What is length in kilometers of the trail ?
Alika [10]
34.215 kilometers you move the decimal to the left three places because Kilo means 1000 and there are 3 zeros in 1000. you move left because Kilometer is bigger than meter.
4 0
3 years ago
Read 2 more answers
Helooo can some one help me please
oee [108]
The answer is 184. 2711
Round it off is 184
Hope that helped :D
5 0
3 years ago
State the domain and range of both the function and the inverse function. f(x) = 8 x + 8 f -1(x) = Domain of f(x): Range of f(x)
Katena32 [7]

Answer:

f^{-1}(x) = \frac{x+8}{8}

Domain of f(x): All real values.

Range of f(x): All real values.

Domain of f -1(x): All real values.

Range of f -1(x): All real values

Step-by-step explanation:

We are given the following function:

f(x) = 8x + 8

Since it is a line, we have that both the domain is the range is the real set.

Inverse function:

The domain of the inverse function is the range of the original function, and the range of the inverse function is the domain of the original function.

Finding the inverse function:

Exchange x and y in the original function, and isolate y. So

Original

y = 8x + 8

Exchanging:

x = 8y - 8

Isolating y:

8y = x + 8

y = \frac{x+8}{8}

f^{-1}(x) = \frac{x+8}{8}

5 0
3 years ago
It says to find the area of the figure but I have no idea what to do
Westkost [7]
2.5 is also on the top and try multiplying 2.5 and 10
6 0
3 years ago
What are the multiples of 4
N76 [4]
1 and 2 are the factors its a compatable number
8 0
3 years ago
Read 2 more answers
Other questions:
  • Need help on these three questions please
    6·1 answer
  • Why does the problem <img src="https://tex.z-dn.net/?f=%5C%5B%5Cfrac%7By%5E2-5%7D%7By%5E4-81%7D%2B%5Cfrac%7B4%7D%7By%5E4-81%7D%5
    8·1 answer
  • A gray whales heart beats 64 times in 8 minutes what is the whales heart rate in beats per minute
    12·2 answers
  • What is 346 rounded to the nearest hundred?
    11·1 answer
  • Y is inversely proportional to the square of p, can be written as: y = O True O False​
    11·1 answer
  • Which statement does not describe the sine function?
    12·2 answers
  • Geometry, please answer question ASAP
    8·1 answer
  • 50 points!!
    11·1 answer
  • NEED HELP PLEASE
    7·1 answer
  • The road that leads to the beach is 3 miles long. What is the length in kilometers?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!