Question 550974
Length  = l=4w+7 meters
Width  = w=?
Perimeter = p = 146 meters


Perimeter of a Rectangle = length + length + width + width
Perimeter of a Rectangle =2 length +2 width
P = 2l +2w
146=2(4w+7)+2w
146=8w+14+2w
146=10w+14
146-14=10w
132=10w
132/10=10w/10
13.2=w
w=13.2 meters



Dimension of the rectangle.

Length  = l=4w+7 = 4(13.2)+7 = 52.8+7 = 59.8 meters
Width  = w=13.2 meters
Perimeter = p = 146 meters