Question

Write an equation that expresses the following relationship.

w varies directly with u and inversely with the square of d.

In your equations, use k as the constant of proportionality.

Answer 1

w=ku
\[w=\frac{k}{d^2}\]

Idk what to do after that?

Answer 2

Super lost

Answer 3

lol that is all you are done!

Answer 4

Is it? Set them equal to each other and solve for k?

Answer 5

oh you are supposed combine them
\[w=\frac{ku}{d^2}\]

Answer 6

It says write an equation; I set up two separate equations so do I combine them by setting them equal to k?

Answer 7

no you are getting this confused with the other kind of problems you did
you do not need to find \(k\) here
you only need to write
\[w=k\frac{u}{d^2}\]

Answer 8

or if you prefer
\[w=\frac{ku}{d^2}\] either way
there is nothing more to do, that is all

Answer 9

Did you substitute a form of the first equation into the second, or a form of the second equation into the first?

Forgive me I just want to be sure that I am understanding this

Answer 10

lets read it carefully then

Answer 11

"w varies directly with u AND inversely with the square of d. "

Answer 12

I am using this site as reference http://www.algebra.com/algebra/homework/Systems-of-equations/Systems-of-equations.faq.question.87158.html

And it seems to coincide with what I think sounds right, and what you say is right,

but still I am not familiar enough with variations to submit this answer with confidence

Answer 13

note the AND
it has to be both
not one or the other

Answer 14

Oh. Well I suppose.

Thank you for your help

Answer 15

in other words it is one equation, not two

Answer 16

yw