Word Problem:
A small town is preparing for a festival and expects a certain number of participants. On the first day, 27 people registered for the festival. On the second day, 18 more people registered. If the total number of participants by the end of the second day is expected to be 72, how many additional participants are needed to reach the expected total?
Solution:
First, we will add the number of participants who registered over the two days:
\[ 27 + 18 = 45 \]
Now, to find the number of additional participants needed to reach the expected total of 72, we subtract the total registered from the expected total:
\[ 72 - 45 = 27 \]
Answer:
An additional 27 participants are needed to reach the expected total of 72 participants for the festival.