SOLUTION: THE RECTANGLE IS FIVE TIMES ITS WIDTH. THE AREA OF THE RECTANGLE IS 320 SQUARE CENTIMETERS. FIND THE DIMENSION OF THE RECTANGLE .

Algebra ->  Rectangles -> SOLUTION: THE RECTANGLE IS FIVE TIMES ITS WIDTH. THE AREA OF THE RECTANGLE IS 320 SQUARE CENTIMETERS. FIND THE DIMENSION OF THE RECTANGLE .      Log On


   

Question 943403: THE RECTANGLE IS FIVE TIMES ITS WIDTH. THE AREA OF THE RECTANGLE IS 320 SQUARE CENTIMETERS. FIND THE DIMENSION OF THE RECTANGLE .
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
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%28wL=A%2C+L=mw%29

w%2Amw=A
mw%5E2=A
w%5E2=A%2Fm
w=sqrt%28A%2Fm%29

You do the rest.