sam and nora leave their business office at the same time. Sam drives north at 53 km/h Nora drives south at 47 km/h. How long until they are 50 km apart

Question

anonymous · Answer

distance = rate times time
if the total distance separating them is 50km
then our equation will look like:
50 = 53*time + 47*time
now all we have to do is solve for time.
can you do this?

anonymous · Answer

How can I solve for t.?

anonymous · Answer

50=53*t + 47*t
we factor out a t on the right side, so
50=t(53+47)
does that help?

anonymous · Answer

i got 100. so what do i do next

anonymous · Answer

50=t(53+47)

50/(53+47) = t
50/100 = t
5/10 = t
1/2 = t
so it is 1/2 and hour till the two drivers are 50km apart