Question

the library needs at least 15 people to sign up for an event in order to run it currently 3 people have signed up and the library expects 2 more people to sign up each day after how many days will the library be sure it can run the event

Answer 1

To determine the number of days needed for the library to reach at least 15 people signed up for the event, we can use the formula:

Number of Days = (Target Number of Sign-ups - Current Number of Sign-ups) / Number of Sign-ups Per Day

Plugging in the given values:
Target Number of Sign-ups = 15
Current Number of Sign-ups = 3
Number of Sign-ups Per Day = 2

Number of Days = (15 - 3) / 2
Number of Days = 12 / 2
Number of Days = 6

Therefore, the library will be sure it can run the event after 6 days.