y = 10 + 20x
y = 60 + 5x
y = 10 + 20x
-4y = -240 - 20x
-3y = -230
y = 76.6
x = 3.33
7.- Solution
(3.3, 76.7)
8.- It means that after 3.3 weeks both locations have vaccinated the same amount of people (76.7)
9.- I'll choose location B because there they are vaccinationg more people every week.