Question

The length of a rectangular pool is 5 meters less than twice the width. if the pool's perimeter is 110 meters, what is the width?

Answer 1

the width is 20

solution:
if width of a rectangular pool equal x
so length of a rectangular pool equal 2x-5
then pool' perimeter is 2width+2length = 2x+2(2x-5) = 2x+4x-10 = 110 meters
6x=120 meters
so width=x=20 meters #