Question 943403
Very frequently asked question, so try it this way:


THE (length of the) RECTANGLE IS m TIMES ITS WIDTH. THE AREA OF THE RECTANGLE IS A SQUARE CENTIMETERS. FIND THE DIMENSION OF THE RECTANGLE .


Let L and w be the unknown length and width of the rectangle, and A=320, and m=5.


{{{system(wL=A, L=mw)}}}


{{{w*mw=A}}}
{{{mw^2=A}}}
{{{w^2=A/m}}}
{{{w=sqrt(A/m)}}}


You do the rest.