okay so maria is driving 63 mph (miles per hour) away from the starting point that ming also started at and ming is driving 72 mph in the opposite direction of maria
and we want to know how far apart they will is 3 hours
so if maria is going 63 mph, that is how fast she goes in 1 hour, multiplying it by 3 will tell you how far she will be in 3 hours
same goes for ming
63(3) = 189
72(3) = 216
←163 · 216→
so if you add them together you will know how far apart they will be in 3 hours
