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Answer:

Learn how to write a proportional equation y=kx where k is the so-called "constant of proportionality".

https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-ratio-proportion/cc-7th-equations-of-proportional-relationships/v/equations-of-proportional-relationships#:~:text=Learn%20how%20to%20write%20a,called%20%22constant%20of%20proportionality%22.

A

Answer is in the photo. I can only upload it to a file hosting service. link below!

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d = st

d = distance

s = speed

t = time

Of the three quantities the constant of proportionality is the speed.

At any given time and distance the speed remains constant.

We can write this in different forms as follows.

d = st

S=d/t

t=d/s

Other proportional relationships are.

1) V/I = R

Where v = voltage

| = the current

R = The resistance

We use this relationship to calculate resistance of devices...

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dugiidhsjdufu the mean time I was wondering if you have any questions or need any further information please contact me in the class is 7 the mean time I wasn't sure if you have any questions

Hi! The answer is A hope I helped

i dont know but think its d+t

its A

y = kx represents a proportional relationship between x and y

where,

k is the constant of proportionality

Given:

d = st

Where,

d = distance

s = speed

t = time

The constant of proportionality of the quantities d, s and t is speed(s)

Speed(s) remains constant at a given time and distance

The equation can be written in different forms below:

d = st

S = d/t

t = d/s

Real world example of proportional relationships

• F=ma

Where,

F=Force

m=mass

a=acceleration

F=ma is used to calculate force

y=kx is a proportional relationship between y and x where k is the constant of proptionalty

d = st

Where,

d = distance

s = speed

t = time

Of the quantities d, s and t, the constant of proportionality is the speed(s).

At a given time and distance, speed(s) is the constant of proportionalty.

Different ways of describing the constant of proportionalty for the equation includes:

d = st

S = d/t

Speed=distance/time

t = d/s

Time=distance/speed

Some other equations that represent proportional relationships in the real world are:

Calculation of force of a body:

F=ma

Where,

F= Force

m= Mass

a= Acceleration

Calculation of resistance:

V/I = R

Where,

v = voltage

I = current

R = resistance

162

Elaine Powell

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