Question

I'm a bit confused on where specifically to go next.
It say's to write another variable besides A =area. So I am using L which I suppose will equal length.
What do I do to solve the variable W ?
(see pics below)

Answer 1

Or, what is the formula for the area of the rectangle that y ou have drawn?

Answer 2

Trying to make it easier and less burdensome. Sometimes people can't open my files and it results in to many tabs open. :)

But, in general the formula for finding a rectangle would be Area = w x h....
But why does that not seem to apply to what they are asking for?
I wrote another variable as they wished, which was L for length (length of the rectangle)
So I have to write a formula incorporating the L, correct?
@mathmale

Answer 3

This whole problem is about algebraic manipulations.

The area of a rectangle (a plane figure) is A=LW, where L=length and W=width.

All you have to do is to begin with A=LW and solve this for EITHER (but not both) L or W.

Answer 4

The assignment here is not "to write another variable." It's to solve an equation for one of the variables OTHER THAN A (where A=area).

Answer 5

So all I'd have to put is A = W x L? Is that right, or am I mistaken?
L isn't an original variable, it is just part of the rectangle so your right there. :)

Answer 6

If you want the area of a rectangle, the formula is A=W*L.

Take this formula (no numers needed) and solve it for either W or L.

that's all you have to do.

show your work, please.

Answer 7

Alright, then maybe it'd be
L x L ?

If there are no numbers needed, I'm doing nothing but multiplying variables that have no meaning behind them...

Answer 8

No.
If A=W*L is the area of a rectangle of length L and width W, we can solve for either W or L.

If solving for L,
\[\frac{ A }{ W }=\frac{ W*L }{ W }\rightarrow \frac{ A }{ W }=L.\]

Answer 9

that's all. If you choose to solve for W, then W=A/L.

Answer 10

Thank you so very much @mathmale :)
I truly appreciate it!!

Answer 11

My great pleasure, Atsie!