Question

Sandra baked a very large cookie that weighed 10 pounds. each day she and her friends at one and a half of the remaining cookie. how long will the cookie last?

Answer 1

The total weight of the cookie is 10 pounds, and each day Sandra and her friends eat one and a half pound (1.5 lb) of the cookie.

So in order to find how many days the cookie will last, we just need to divide the inicial weight of the cookie by the weight consumed each day:

`\text{number of days}=(10)/(1.5)=(10)/((3)/(2))=10\cdot(2)/(3)=(20)/(3)=6.66\text{ days}`

So the cookie will last for 6 complete days.