Stalactites only grow about 1/200 inch every. At this rate, how long will it take a stalactite to grow 5 inches?
let y be the number of years it will take the stalactite to grow 5 inches?
it will take the stalactite ? years to grow 5 inches.
It will take the stalactite 1000 years to grow 5 inches.
Calculations:
1/200 inch growth per year
5 inches growth required
5 / (1/200) = 1000 years