Problem Solving Using Equations

[Kitty Kat]

I have no idea what topic this goes under but I am stressing out on this question.

"The length of a rectangle is 3m less than twice the width. If the perimeter is 18m, find the area."


I don't understand where to start on this question or whether to do an equation.

I'd really appreciate it.

Thanks,
Kitty Kat

 

[mmm4444bot]

This looks like a beginning-algebra exercise; I moved your thread to that board.

Let symbol L represent the length of the rectangle, and let symbol W represent the width of the rectangle.

Using symbols L and W, can you show us (1) the formula for the area of any rectangle and (2) the formula for the perimeter of any rectangle?

We'll go from there. :cool:

 

[Kitty Kat]

...

This looks like a beginning-algebra exercise; I moved your thread to that board.

Let symbol L represent the length of the rectangle, and let symbol W represent the width of the rectangle.

Using symbols L and W, can you show us (1) the formula for the area of any rectangle and (2) the formula for the perimeter of any rectangle?

We'll go from there. :cool:

The formula for area of a rectangle of LxW or LW.
The formula for perimeter is L+L+W+W, isn't it 2L+2W?