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
Ostrovityanka [42]
3 years ago
5

Suppose you invest $25,000 at simple interest rate r. If you receive $1,250 in total interest after four years, what is the inte

rest rate r?
Mathematics
2 answers:
igomit [66]3 years ago
7 0

Answer:

r = 0.012369

or

1.23686% rate

Step-by-step explanation:

Simple Interest Rate Formula: A = P(1 + r)ⁿ

<em>A </em>is your final amount.

<em>P</em> is your initial amount.

<em>r</em> is your rate.

<em>n</em> is the amount of time in years.

Step 1: Define variables

P = $25,000

n = 4 years

A = $25,000 + $1250 = $26,250

Step 2: Substitute known variables

26,260 = 25,000(1 + r)⁴

Step 3: Solve for rate <em>r</em>

<u>Divide both sides by 25,000</u> 1.0504 = (1 + r)⁴

<u>Take the 4th root of both sides</u> 1.01237 = 1 + r

<u>Subtract 1 on both sides</u> r = 0.012369

We have our answer r = 0.012369, but to find the percent rate, we multiply <em>r</em> by 100%:

0.012369 · 100% = 1.23686%

Misha Larkins [42]3 years ago
3 0

\text{Hello!}

\large\boxed{1.25\%}

\text{Use the simple interest formula I = P * r * t where:}\\\\\text{I = amount of interest}\\\text{P = principle  (initial amount)}\\\text{r = interest rate}\\\text{t = time period}\\\\\text{Substitute the known values from the problem:}\\\\1250 = 25000 * r * 4\\\\1250 = 100000r\\\\r = 0.0125\\\\\text{Convert to a percentage:}\\\\0.0125 * 100 = 1.25\%

You might be interested in
A researcher believes that 5% of pet dogs in Europe are Labradors. If the researcher is right, what is the probability that the
DerKrebs [107]

Answer:

0.9036

Step-by-step explanation:

Calculation to determine the probability that the proportion of Labradors

P(Proportion greater than 4%)

= P(z> 0.04 -0.05 /√0.05 * 0.95/806

= P(z > -1.30)

=0.9036

Thereforethe probability that the proportion of Labradors is =0.9036

6 0
3 years ago
Find the equation of the plane that goes through three points:
frosja888 [35]

The equation of the plane that goes through these points is:

6x + 2y + z = 10.

<h3>How to find the equation of a plane given three points?</h3>

The equation of the plane is found replacing the points into the following equation:

ax + by + c = z.

For point A, we have that:

3b + c = 4.

For point B, we have that:

a + 2b + c = 0.

For point C, we have that:

-a + 6b + c = 4.

Hence the system is:

  • 3b + c = 4.
  • a + 2b + c = 0.
  • -a + 6b + c = 4.

From the first equation, we have that:

c = 4 - 3b.

Replacing in the second, we have that:

a + 2b + 4 - 3b = 0

a - b = -4.

Replacing in the third, we have that:

-a + 6b + 4 - 3b = 4.

-a + 3b = 0.

a = 3b.

We have that a - b = -4, hence:

3b - b = -4

2b = -4

b = -2.

a = 3b, hence a = -6.

c = 4 - 3b -> c = 10.

Hence the equation is:

ax + by + c = z.

z = -6x - 2y + 10

6x + 2y + z = 10.

More can be learned about the equation of a plane at brainly.com/question/13854649

#SPJ1

7 0
11 months ago
is it possible to draw two congruent triangles so that one triangle is an acute triangle and one triangle is right triangle? why
BaLLatris [955]
No because then they would be different triangles.  Congruent triangles are triangles that are the same

I hope I've helped!
4 0
3 years ago
The function g(x)=(x-2^2. The function f(x)=g(x) +3
OlgaM077 [116]
The parent function is:
 y = x ^ 2
 Applying the following function transformation we have:
 Horizontal translations:
 Suppose that h> 0
 To graph y = f (x-h), move the graph of h units to the right.
 We have then:
 g (x) = (x-2) ^ 2
 Then, we have the following function transformation:
 Vertical translations
 Suppose that k> 0
 To graph y = f (x) + k, move the graph of k units up.
 We have then that the original function is:
 g (x) = (x-2) ^ 2
 Applying the transformation we have
 f (x) = g (x) +3
 f (x) = (x-2) ^ 2 + 3
 Answer:
 
the function f(x)  moves horizontally 2 units rigth.
 
The function f (x) is shifted vertically 3 units up.
4 0
3 years ago
Find the interest due on $1,090 at 8% for 5 years.
Marrrta [24]

Answer:

$1601.57, $511,57 more intrest

Step-by-step explanation:

1,090*1.08^5

= 1601.5676

Round up to get 1601.57

4 0
2 years ago
Read 2 more answers
Other questions:
  • A calculus student takes a 20-question, multiple choice test with 5 answer choices for each question. find the probability of ge
    11·2 answers
  • △EFG≅△JKL . What is m∠K ?
    14·1 answer
  • Give the coordinates of the unknown vertex of JKLM and graph
    13·1 answer
  • A student has a bag of marbles. There are 75 blue marbles, 50 green marbles, 100 orange marbles, and 25 red marbles. They select
    5·1 answer
  • Can someone please help me with question 9. Somebody answered it but this is the full question
    7·1 answer
  • An aquarium tank holds 474 liters of water. How much is this in gallons? Use the following conversion: 1 gallon is 3.8 liters.
    14·2 answers
  • Help ASAP! Picture above easy 6th grade math
    15·1 answer
  • 6. Carlos flips a coin 80 times, then rolls a number cube 80 times. His results are shown in the tables below.
    8·1 answer
  • Line z has a slope of 2.5 and goes through point (4,13) .which equation best represents line Z​
    7·2 answers
  • Asnwer asaappp :((!!<br><br><br> will give brainliest
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!