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
KatRina [158]
2 years ago
7

$240 interest is earned on a principal of $1500 at a simple interest rate of 4% interest per year. For how many years was the pr

incipal invested?​
Mathematics
1 answer:
Alla [95]2 years ago
7 0
Simple Interest Formulas and Calculations:
Calculate Total Amount Accrued (Principal + Interest), solve for A. A = P(1 + rt)
Calculate Principal Amount, solve for P. P = A / (1 + rt)
Calculate rate of interest in decimal, solve for r. r = (1/t)(A/P - 1)
Calculate rate of interest in percent. ...
Calculate time, solve for t.
https://www.calculatorsoup.com › si...
You might be interested in
What is the equation of a parabola with (−2, 4) as its focus and y = 6 as its directrix? Enter the equation in the box.
antiseptic1488 [7]

Check the picture below.  So the parabola looks more or less like so.

let's recall that the vertex is half-way between the focus point and the directrix, at "p" units away from both.

Let's notice that the focus point is below the directrix, that means the parabola is vertical, namely the squared variable is the "x", and it also means that it's opening downwards as  you see in the picture, namely that "p" is negative, in this case "p" is 1 unit, and thus is -1.

\bf \textit{parabola vertex form with focus point distance} \\\\ \begin{array}{llll} 4p(x- h)=(y- k)^2 \\\\ \stackrel{\textit{we'll use this one}}{4p(y- k)=(x- h)^2} \end{array} \qquad \begin{array}{llll} vertex\ ( h, k)\\\\ p=\textit{distance from vertex to }\\ \qquad \textit{ focus or directrix} \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \begin{cases} h=-2\\ k=5\\ p=-1 \end{cases}\implies 4(-1)(y-5)=[x-(-2)]^2\implies -4(y-5)=(x+2)^2 \\\\\\ y-5=-\cfrac{1}{4}(x+2)^2\implies y=-\cfrac{1}{4}(x+2)^2+5

6 0
3 years ago
What is the measurement of arc BE?
aniked [119]
The answer is 134 degrees
4 0
3 years ago
A skateboard ramp at the skate park is in the shape of a triangular prism. What is the lateral surface area of the ramp? (SA = P
rodikova [14]

Answer:

Step-by-step explanation: i dont know

3 0
4 years ago
two forces , one of magnitude 2.00N and the other of magnitude 3.00N are applied to the ring of a force table. the directions of
Anarel [89]
The maximum is 5, and the minimum is 1. The max. is in the are on the same side, which combines forces of 3 and 2. The min. uccors when they are on opposite sides.
8 0
3 years ago
Catherina conducted a survey of four school cafeterias to find the number of students who like burgers for lunch. The results of
tensa zangetsu [6.8K]

Answer:

ITs C

Step-by-step explanation: I said c because it is the number of students in the class and who likes burgers.

5 0
3 years ago
Read 2 more answers
Other questions:
  • The height y (in feet) of a ball thrown by a child is
    5·2 answers
  • Which equation demonstrates the additive identity property?
    5·1 answer
  • Find me midpoint of -9 and 6
    13·2 answers
  • What kind of questions should you ask during an interview
    14·1 answer
  • What is f(4) for the function f(x)=5x 9?
    14·1 answer
  • Solve Only estimation​
    6·2 answers
  • Ms Gibson made an initial deposit of 500$ when opening a bank account. After the initial deposit, she deposited the same amount
    11·1 answer
  • Can someone please help me solve the equation?
    12·1 answer
  • Please helppppppp!!!!
    11·2 answers
  • A bill to landscape your yard is $720. The Materials cost $375 and the labor is $34.50 per hour. Write and solve an equation to
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!