One car went 10 miles farther when traveling at 50 mph than a second car that traveled 2 hours longer at a speed of 40 mph. How long did the first car travel?

Answer 1

times t hours and (t+2) hours)
d1 = 50 t
d2 = 40(t+2)

50 t = 10 + 40(t+2)

10 t = 90

t = 9