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tangare [24]
3 years ago
6

The equation A = p + prt is used to find the accumulated amount, A, of an investment with principal, P, a certain interest rate,

r, and over time, t. What is the value for r, after the equation is rearranged?
r equals start fraction cap a plus p over p t end fraction
r equals start fraction cap a minus p over p t end fraction
r equals start fraction cap a minus one over t end fraction
r = A − p − pt
Mathematics
1 answer:
Whitepunk [10]3 years ago
4 0

Answer:

  r equals start fraction cap a minus p over p t end fraction

Step-by-step explanation:

Subtract the term non containing r, then divide by the coefficient of r.

  A=p+prt\\\\A-p=prt\\\\\dfrac{A-p}{pt}=r

You might be interested in
Line segment JM has endpoints with coordinates 0 and 25 on a number line. Points K and L are on segment JM. K has a coordinate o
Pepsi [2]

Answer:

  • D. 216/625

Step-by-step explanation:

  • The length of the segment JM is 25 units.
  • The segment JL is between 0 and 12, so is 12 units.
  • The segment KL is between 5 and 12, so is 7 units.

<u>The probabilities for each point:</u>

  • P(point on JL) = 12/25
  • P(point not on KL) = 1 -  7/25 = 18/25

<u>Required probability:</u>

  • P = 12/25*18/25 = 216/625

Correct choice is D

5 0
3 years ago
plz help !! write two real world situations that you can model using the exponential function f(x)=2 to the power of x
Margaret [11]

Answer:

Two real world situations are shown below.

Step-by-step explanation:

Initial population of a certain bacteria is 1 thousand and the population doubles in each hour. So, population of bacteria (in thousands) after x hours is

f(x)=1(2)^x

f(x)=(2)^x

A person invests 1 lakh rupees in shares and the amount is twice at the end of each year. So, total amount (in lakhs) after x years is

f(x)=1(2)^x

f(x)=(2)^x

7 0
3 years ago
4 people can paint a house in 6 hours. a) How long would it take 1 person to paint the house?​
OlgaM077 [116]

Answer:

9 hours

Step-by-step explanation:

If there's 4 people, they each need 1.5h So you multiply 1.5 by 6 and that's how you find how long it takes for 1 person.

8 0
3 years ago
Find the value of y.​
Bess [88]

Answer:

=6√3 the third option.

Step-by-step explanation:

We can use the Pythagoras theorem to find the value of y. We need two equations that include y.

a²+b²=c²

c=9+3=12

x²+y²=12²

x²=144 - y².........i (This is the first equation)

We can also express it in another way but let us find the perpendicular dropped to c.

perpendicular²= x²-3²=x²-9 according to the Pythagoras theorem.

y²=(x²-9)+9²

y²=x²+72

x²=y²-72....ii( this is the second equation

Let us equate the two.

y²-72=144-y²

2y²=144+72

2y²=216

y²=108

y=√108

In Surd form √108=√(36×3)=6√3

y=6√3

8 0
3 years ago
The vertices of square RSTV have coordinates R(-1,5), S(-3,1), T(-7,3), and V(-5,7). What is the perimeter of RSTV?
kompoz [17]

The perimeter of square RSTV is: 17.88 units

Further explanation:

As the given figure is a square, all of its sides will be equal. So we have to find one side to find the perimeter.

Given

R(-1,5), S(-3,1), T(-7,3), and V(-5,7)

The distance formula will be used to find the side

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^@}

Let x be one side of square

RS=x=\sqrt{(-3-(-1))^2+(1-5)^2}\\=\sqrt{-3+1)^2+(-4)^2}\\=\sqrt(-2)^2+(-4)^2}\\=\sqrt{4+16}\\=\sqrt{20}\\=4.47

Let P be the perimeter of square

P= 4x

P=4*4.47

=17.88 units

The perimeter of square RSTV is: 17.88 units

Keywords: Perimeter, Distance Formula

Learn more about perimeter at:

  • brainly.com/question/13219835
  • brainly.com/question/1836777

#LearnwithBrainly

6 0
3 years ago
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