Question

trisha and her friends are preparing for an epic snowball fight. they make 80 snowballs before trishas dad calls them in for lunch. after lunch, they make more snowballs. in all, trisha and her friends make 161 snowballs. which equation can you use to find the number of snowballs s trisha and her friends make after lunch? s - 80 = 161 80s = 161 s + 80 = 161 $\frac{s}{80}$ = 161 solve this equation for s to find the number of snowballs trisha and her friends make after lunch. 81 snowballs

Explanation:

Step1: Analyze the problem

The number of snow - balls made before lunch is 80, and the number made after lunch is $s$. The total number of snow - balls is 161. So the sum of snow - balls made before and after lunch equals the total.
$80 + s=161$

Step2: Solve the equation for $s$

Subtract 80 from both sides of the equation $80 + s=161$.
$s=161 - 80$
$s = 81$

Answer:

The equation is $s + 80 = 161$ and the number of snowballs made after lunch is 81.