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
Anni [7]
3 years ago
13

If

Mathematics
1 answer:
Kamila [148]3 years ago
8 0

Answer Interest rate = 12.3%

The compound interest formula is given by:

Where

A = Future amount

P = Present amount (Principal amount)

r = Interest rate in decimal form

n = No. of times compounded per year

t = time in years.

We can say that if:

Present amount = P

Future amount = 3P

r = 12.3/100 = 0.123

n = 1

t = ?

Substitute the values in the formula of compound interest:

Taking log on both sides.

Round off to nearest option

t ≅ 9 years

You might be interested in
A 10ft by 20ft rectangular swimming pool is surrounded by a walkway of uniform width. If the total area of the walkway is 216ft^
Dmitry [639]

check the picture below.


so, we know the dimensions of the pool, is a 20x10, so its area is simply 200 ft², and we know the walkway is 216 ft², so the whole thing, including pool and walkway is really 200 + 216 ft².


now, as you see in the picture, the dimensions for the combined area is 20+2x and 10+2x, since the walkway is "x" long, therefore,


\bf \stackrel{length}{(20+2x)}\stackrel{width}{(10+2x)}=200+216\implies \stackrel{FOIL}{4x^2+60x+200}=200+216 \\\\\\ 4x^2+60x=216\implies \stackrel{dividing~by~4}{x^2+15x=54} \\\\\\ x^2+15x-54=0\implies (x+18)(x-3)=0\implies x= \begin{cases} -18\\ \boxed{3} \end{cases}


notice, it cannot be -18, since is a positive length unit.

5 0
3 years ago
Read 2 more answers
The distance between Logan airport and Framingham a car can cover in 20 min. Logan Express bus can cover this distance in 30 min
Ronch [10]
That's a pretty confusing one. I think it's 10 minutes.
4 0
3 years ago
Which degree of rotation is equivalent to a 270 degree clockwise rotation?
Dominik [7]
A 90 degree counter clockwise rotation
4 0
3 years ago
A model ship is 28 in. by 65 in. Use the scale 1 in. : 1/2 ft to find the dimensions of the actual ship
Kruka [31]
The scale given (1 in : 1/2 ft) implies that 1 inch on the model is equal to 1/2 foot on the actual ship. Therefore, we can multiply the two inch values by 1/2 foot to find the true dimensions of the ship in feet. Starting with 28 inches:

28 × (1/2 ft) = 14 ft

28 inches is proportional to 14 feet. Now calculate 65 inches:

65 
× (1/2 ft) = 32.5 ft

65 inches is proportional to 32.5 feet. Therefore, the answer to this problem is:

D) 14 ft. by 32 1/2 ft.

I hope this helps!
6 0
3 years ago
Yub87654d HELP there is this person trying to kid,.,nap,./, kids so if you see an account called Hernyana report there questions
eduard

Answer:

Okay

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • When data consist of percentages, ratios, growth rates, or other rates of change, the geometric mean is a useful measure of cent
    8·1 answer
  • Which of the following points are on the line given by the equation y equals 2x?
    14·1 answer
  • Point C does not lie on line xy. Can point C lie in the same plane as live xy? Explain
    7·1 answer
  • Write cos(3x) - cos x as a product
    9·1 answer
  • 30% ofwhat number is 21.3
    13·2 answers
  • Multiply.
    7·1 answer
  • PLEASE HELP ME I WILL FAIL IF YOU DON'T
    10·1 answer
  • Answer this question to get marked as brainliest!!!!
    14·1 answer
  • The temperature dropped 12°F in 8 hours. If the final temperature was —7°F, what was the starting temperature?
    10·2 answers
  • What is the slope of a line that passes through the points (4, - 3) and (- 2, 9)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!