Question

The length of a rectangle is 4 meters longer than the width. if the area is 35 square​ meters, find the​ rectangle's dimensions. round to the nearest tenth of a meter.

Answer 1

area(a)=length(l)*width(w)
l=w+4
a=w(w+4)
a=w^2+4w
35=w^2+4w
0=w^2+4w-35
w=4.2
l=4.2+4
l=8.2

so, the width is 4.2 meters long and the length is 8.2 meters long.