Question

The length of a rectangle is 15 meters more than the width. The perimeter is 50 meters. The width is

Answer 1

l=20m

w=5m

Explanation:

Let "l" be the length of the rectangle &

let "w" be the width of the rectangle

l=15+w

P=2(l+w)

50m=2(15m+w+w)

50m=2(15+2w)

50m=30m+4w

20m=4w

w=5m

l=15m+w

l=15m+5m

l=20m

Proof:

P=2(l+w)

P=2(15m+w+w)

50m=2(20m+5m)

50m=40m+10m

50m=50m