40/100 + 50/100 = 90/100
il lui reste 10/100 ou 21 $
10 % = 21 $
100 % = 210 $
Parallel lines are in the same plane, never intersect, and have the same slope.
Answer:

Step-by-step explanation:
The combined distance that both planes will cover is 200 miles
Time taken by both planes will be the same (t)

So, the combined distance is

They will meet in
.