The lenght of a rectangle is seven times the width. Define the variable expressions for the length and width of the rectangle.

Question

Math problem help please

Answer 1

A rectangle has four sides.  There are two 'length' and two 'width.'

 

We may assign the variables (x and y), or (L and W), or (A and B), or some other letters.  It is important that we not confuse them with numbers (l looks like 1) and that we remember what they represent.

 

This problem allows us to let L=length.   Or, since L=7W, or we could always use 7W for length.

It allows us to define W=width.