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4 years ago

An equation for finding simple interest rate

Mathematics

1 answer:

Arada [10]4 years ago

8 0

Answer:

See below.

Step-by-step explanation:

I = PRT/100 will do it.

I = Simple interest.

P = Principal ( Intial Amount invested).

R = Rate (as a percent).

T = time invested.

The above formula gives the amount of interest, If you want to find the interest rate knowing all the other values you have to solve for R:

I = PRT/100

100 I = PRT

R = 100I / PT is the formula .

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4 years ago

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ValentinkaMS [17]

Answer:

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Step-by-step explanation:

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3 years ago

The midpoint of \overline{\text{AB}}

Schach [20]

Answer:

The coordinates of b are: B=(-7,-8)

Step-by-step explanation:

We are given the coordinates of the midpoint of $\overline{\text{AB}}$ as M=(-5,-2).

We are also given the coordinates of A=(-3,4). The question requires us to calculate the coordinates of the other endpoint B.

Let (xb,yb) the coordinates of B. The coordinates of the midpoint can be calculated as follows:

$\displaystyle x_m=\frac{x_a+x_b}{2}$

$\displaystyle y_m=\frac{y_a+y_b}{2}$

We know xa=-3 and xm=-5. Solve the first equation for xb:

$2x_m=x_a+x_b\Rightarrow x_b=2x_m-x_a$

Substituting:

$x_b=2\cdot (-5)-(-3)=-10+3$

$x_b=-7$

We can solve the second equation for xb and get:

$y_b=2y_m-y_a$

Since ya=4 and ym=-2, then:

$y_b=2\cdot (-2)-(4)=-4-4$

$y_b=-8$

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4 years ago

Write in point slope form of the line that passes through the points (3,-1) and (6,-2)

skelet666 [1.2K]

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4 years ago

For the function below, give the ordered pair if x = 2 f(x)=-3(x+2)2+9

Kay [80]

Answer:

(2, -39)

Step-by-step explanation:

f(x)=-3(x+2)^2+9

f(2)=-3(2+2)^2+9

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f(2)=-3(16)+9

f(2)=-48+9

f(2)=-39

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2 years ago