I'll try.
If a substance has a half life of 7 days and you start out with a concentration of 100 per ml.
After 7 days the concentration will be: 50 per ml
after 14 days the concentration will be: 25 per ml
after 21 days the concentration will be 12 1/2 per ml
sfter 28 days the concentration will be 6 1/4 per ml
Each 7 day period will reflect a 50% less concentration than the week before.
Regards
Joe
__________________
A Proud webmaster to the internet's most informed, educated, COMPASSIONATE and caring group of breast cancer survivors.
Illegitimi non carborundum
My Album
|