Question 682160: The length of a rectangle is 6 inches more than three times the width. The perimeter is 84 inches Answer by sachi(548) (Show Source):
You can put this solution on YOUR website! The length of a rectangle is 6 inches more than three times the width
let width=x
then length=3x+6
The perimeter is 84 inches
so 2(x+3x+6)=84
or 4x+6=84/2=42
or 4x=42-6=36
or x=36/4=9
so the width= 9 in & length=3*9+6=33 in
