SOLUTION: what is the length of a rectangle that is twice the width; with a perimeter that is 42 inches. find the width

Algebra ->  Algebra  -> Rectangles -> SOLUTION: what is the length of a rectangle that is twice the width; with a perimeter that is 42 inches. find the width      Log On

Ad: Algebrator™ solves your algebra problems and provides step-by-step explanations!
Ad: Algebra Solved!™: algebra software solves algebra homework problems with step-by-step help!

   

Question 145515: what is the length of a rectangle that is twice the width; with a perimeter that is 42 inches. find the width
Answer by vleith(2517) About Me  (Show Source):
You can put this solution on YOUR website!
let width = w
length = 2w
P = 2l + 2w
42 = 2(2w) + 2w
42 = 4w + 2w
42 = 6w
7 = w