Question

Two trains 420 miles apart are headed toward each other. Train A is traveling at 40 mi/hr and Train B at 30 mi/hr. How long will it take before they reach each other?

Which equation represents the scenario above?

a. 40t – 30t = 420
b. 420 = 30t
c. 40t + 30t = 420
d. 420 = 40t

Answer 1

What do you think?

Answer 2

Typo, I mean no clue

Answer 3

Well, \(\textsf{t= time in hours}\), of course. So they want the total amount of hours times the miles per hour to add to a total of 420 miles for you to find out how long it takes for the trains to meet.