A ratio is an ordered pair of numbers a and b, written as a/b where b does not equal 0. A proportion is an equation in which two ratios are set equal to each other.

Given

The interest rate applied to the present value has on the monthly payment P in the formula

$\rm P = PV(\dfrac{i}{1-i})^{-n}$

The effect an increase in i.

$\rm P = PV(\dfrac{i}{1-i})^{-n}\\$

on simplifying the equation, we get

$\rm P = PV(\dfrac{i}{1-i})^{-n}\\\\P = PV\dfrac{1}{(\frac{i}{1-i})^n}\\\\\\P = PV(\dfrac{1-i}{i})^{n}\\\\P = PV(\dfrac{1}{i} - 1)^{n}$

Let n be the constant, then the equation will be

$\rm P = PV(\dfrac{1}{i} - 1)^{n}\\\\\dfrac{1}{V} \propto \dfrac{1}{i}\\\\V \propto i$

It is clear that V is proportional to i.

An increase in i, the interest rate, will not change P, the monthly payment.

Thus, the A option is correct.

More about the ratio and the proportion link is given below.

brainly.com/question/165414

5 0

2 years ago

Which angle number is a vertical angle to ZECB?

Sergeeva-Olga [200]

Answer:

Y O U R M O M

Step-by-step explanation:

Yea its easy

7 0

3 years ago

PLEASE TELL ME ITS ANSWER

Dafna11 [192]

Step-by-step explanation:

6) x+y=60

x/y=7/5------(2)

x=(7/5)y

(7/5)y + y =60

(12/5)y=60

y=60(5/12)

y= 25

x=(7/5)y=(7/5)×25 =35

the two numbers are 35 and 25

7)distance walked by A = 4t

distance walked by B = 5t

4t+5t=27

9t=27

t=27/9=3hours

7 0

3 years ago