Fred and his friends are preparing for an epic snowball fight. They make 80 snowballs before Fred's dad calls them in for lunch. After lunch, they make more snowballs. In all, Fred and his friends make 161 snowballs.
Which equation can you use to find the number of snowballs s Fred and his friends make after lunch?
Solve this equation for s to find the number of snowballs Fred and his friends make after lunch.
Let's use the equation:
Total number of snowballs = Number of snowballs made before lunch + Number of snowballs made after lunch
Let s be the number of snowballs made after lunch.
161 = 80 + s
Solving for s:
161 - 80 = s
81 = s
Therefore, Fred and his friends made 81 snowballs after lunch.