The water in a swimming pool evaporates at a rate of 1/6 inch per day. The water level in the pool has dropped 3 inches since the last time the pool was filled. How many days have passed since the pool was filled.

Respuesta :

18 days

1/6 x 6 = 6/6 = 1
1/6 x 18 = 18/6 = 3
the answer is 18 days some one help me to