Final answer:
To determine how many weeks Bryce has been doing chores, given his earnings of $80 and a weekly income of $5, we solve the equation e = 5w by substituting $80 for e and dividing by 5, resulting in Bryce having done his chores for 16 weeks.
Step-by-step explanation:
The question asks us to determine how many weeks Bryce has been doing chores if he has saved $80 and earns $5 per week from doing chores. The given equation is e = 5w, where e stands for Bryce's earnings and w stands for the number of weeks he does his chores. To find out how many weeks he has been doing chores, we need to solve for w when e is equal to $80
Using the equation, we can substitute $80 for e to get:
80 = 5w
Now, we solve for w by dividing both sides of the equation by 5:
w = 80 / 5
w = 16
Thus, Bryce has been doing his chores for 16 weeks.